AndreaBozzo/ceres-open-data-index huggingface dataset:
Long-term project observations for project P1361 semester 2025OCTS_01

PSR J1227-6208 is a recycled pulsar in a binary with a massive white dwarf companion. A recent timing measurement from combined MeerKAT and Parkes observations shows the companion mass to be between 1.2 and 1.5 solar masses, very close to the Chandrasekhar limit, resulting in potentially profound physical implications. However, the timing precision is limited by the DM timing noise. We propose regular monitoring of this pulsar with the Parkes UWL receiver in conjunction with MeerKAT observations during the following four years. The joint monitoring will significantly improve the constraints on the Post-Keplerian parameters, with Parkes observations contributing to constrain the DM noise due to its large frequency bandwidth. These observations will be added to the already existing 11-year-long timing baseline, of which the later 5 years already include high-precision MeerKAT data and Parkes UWL data. After four years of further timing with the inclusion of UWL observations, we predict an uncertainty on the masses smaller than 0.01 solar masses based on simulations. If UWL is not included, the mass uncertainties may not improve beyond their current values.

Organization: CSIRO Data Access Portal
Parkes observations for project P1382 semester 2025OCTS_09

The prevalence of millisecond pulsars (MSPs) in and around the Galactic center and the bulge has been one of the key questions in pulsar astronomy. In addition to finding more exotic and interesting binary systems at and around the Galactic center and bulge due to the enhanced density of stars/stellar remnants, MSPs are also proposed to be one of the candidates to explain the observed Fermi gamma-ray excess. However, most of the MSPs discovered so far are field (disk) MSPs or those in globular clusters. Initial steps towards addressing the question of Galactic center/bulge MSPs were made with the discovery of the first MSPs in a Galactic filament, but more progress comes from the discovery of a sample of MSPs around the Galactic center. Blind surveys targeting MSPs can suffer from many observational biases that smear the pulses due to binary acceleration, scattering from the enhanced density, and so on, which increases the parameter space for discovery and can sometimes make the problem intractable. However, if pulsar candidates can be identified reliably from imaging surveys, then targeted observations can make the problem tractable in identifying the pulsations. We followed up a sample of polarized sources identified in the MeerKAT bulge imaging survey and discovered a sample of 16 new MSPs. Here we request the timing observations of 8 interesting MSPs (a subset of our discovery sample), to study the binary nature of these sources and their potential inclusion in pulsar timing array efforts.

Organization: CSIRO Data Access Portal
Parkes observations for project P960 semester 2025OCTS_03

We aim to carry out receiver pointing and characterisation tests of Parkes receivers. Typically, these tests are carried out after the receiver package is installed, but time does not always allow for proper characterisation. Receivers for consideration include UWL, MARS and 13MM packages. In addition to cross-referencing C007 for flux calibration via pointing, we aim to conduct gain-elevation and system temperature experiments using the Moon, to ensure users of the Parkes Observatory have the most accurate information available for calibration purposes.

Organization: CSIRO Data Access Portal
Parkes observations for project P1382 semester 2025OCTS_10

The prevalence of millisecond pulsars (MSPs) in and around the Galactic center and the bulge has been one of the key questions in pulsar astronomy. In addition to finding more exotic and interesting binary systems at and around the Galactic center and bulge due to the enhanced density of stars/stellar remnants, MSPs are also proposed to be one of the candidates to explain the observed Fermi gamma-ray excess. However, most of the MSPs discovered so far are field (disk) MSPs or those in globular clusters. Initial steps towards addressing the question of Galactic center/bulge MSPs were made with the discovery of the first MSPs in a Galactic filament, but more progress comes from the discovery of a sample of MSPs around the Galactic center. Blind surveys targeting MSPs can suffer from many observational biases that smear the pulses due to binary acceleration, scattering from the enhanced density, and so on, which increases the parameter space for discovery and can sometimes make the problem intractable. However, if pulsar candidates can be identified reliably from imaging surveys, then targeted observations can make the problem tractable in identifying the pulsations. We followed up a sample of polarized sources identified in the MeerKAT bulge imaging survey and discovered a sample of 16 new MSPs. Here we request the timing observations of 8 interesting MSPs (a subset of our discovery sample), to study the binary nature of these sources and their potential inclusion in pulsar timing array efforts.

Organization: CSIRO Data Access Portal
Parkes observations for project P1380 semester 2025OCTS_04

The association of FRB 200428 with the Galactic magnetar SGR 1935+2154 confirms that magnetars can power fast radio bursts (FRBs). However, FRB 200428 is 4 to 8 orders of magnitude less energetic than the typical population of cosmological FRBs. This discrepancy is likely due to the moderate magnetic field strength and evolved age of SGR 1935+2154. In contrast, newborn extragalactic magnetars, such as those formed in gamma-ray burst (GRB) central engines, are expected to have much stronger magnetic fields, more rapid spin-down, and highly dynamic magnetospheres, all of which favor the production of brighter and more frequent FRBs.

We propose a targeted search for FRBs from the recently localized GRB 230307A, a long-duration GRB with evidence suggesting the formation of a young magnetar. Given the source's relatively close distance (291 Mpc) and possible youth (less than 3 years), it offers a compelling opportunity to test FRB generation mechanisms during the early evolution of a magnetar.

We request 30 hours of observing time with the Parkes 64-m Murriyang telescope using the ultra-wideband low-frequency (UWL) receiver. Our plan includes one 10-hour long-duration session to detect rare or clustered bursts, and ten 2-hour sessions spread over 2-3 months to sample temporal variability. Data will be processed with state-of-the-art pipelines for single-pulse searches and coherent dedispersion.

A detection would strongly support magnetar-origin FRB models and provide key constraints on the early-time activity of GRB-formed neutron stars.

Organization: CSIRO Data Access Portal
Parkes observations for project P630 semester 2011APRS_14

We propose to carry out the most ambitious and comprehensive all-sky survey for pulsars and transient sources to date. Using the 20cm multibeam and a new digital filterbank array this survey will create a petabyte digital record of the sky that can be data mined in the future and used to search for relativistic binary and millisecond pulsars, RRATs, and extragalactic radio bursts. The survey should discover 100s of new millisecond and normal pulsars and help define the lower limit to pulsar periods, test theories of relativistic gravity, find transients and provide pulsars for gravitational wave detection.

Organization: CSIRO Data Access Portal
Parkes observations for project P1349 semester 2025OCTS_02

We propose a study of pulsars with interpulse (IP) emissions using the Ultra-Wideband Low (UWL) receiver on the Parkes radio telescope (Murriyang). This project aims to investigate the polarization and emission properties of these pulsars through detailed modeling using the rotating vector model (RVM). Polarization profiles will be obtained over a wide frequency range, from 704 MHz to 4032 MHz. We will measure the emission height differences between the main pulse (MP) and IP as a function of frequency, allowing us to explore their frequency dependence and to test the radius-to-frequency mapping (RFM) model. Spectral analyses of individual profile components will be performed to constrain the emission properties and investigate differences between the MP and IP. Additionally, we will examine quasi-periodic microstructure in both MP and IP, aiming to characterize the microstructure period and explore its potential correlation with the magnetic inclination angle. This comprehensive investigation will yield new insights into the emission geometry of pulsars with IP emissions, contributing to a better understanding of their unique characteristics within the pulsar population.

Organization: CSIRO Data Access Portal
OzWheat V1.0 SNP data assets

Single nucleotide polymorphism genotypes for ~300 varieties from the OzWheat diversity panel generated with alternative platforms combined in a single matrix. Original platform source files are also provided. 

Transcript SNPs:
63,222 SNP loci. 298 wheat lines. 
File=OzWheat_Transsnp_filtered_CS1.0_231130.hmp.txt

90K Illumina SNP array:
23362 SNP loci. 286 wheat lines from OzWheat panel 1 and 300 lines from OzWheat panel 2. 
File=V1_V2_commonSNP_merged.hmp

40K Illumina SNP array:
10670 SNP loci. 286 wheat lines. 
File=OW1_40K_filtered.hmp.txt

DARTseq:
56467 SNP loci. 282 wheat lines. 
File=Report_DW21-6152_SNP_mapping_2.csv

Combined platform SNP - joins SNPs called from transcriptome data, 90K and 40K array and DARTseq.
115,260 SNP loci. 296 wheat lines. 
File=OzWheat_Transsnp40k90kDArT_filtered_CS1.0_alleleinfo_240102.hmp.txt

Keeble-Gagnère G, Pasam R, Forrest KL, et al. Novel Design of Imputation-Enabled SNP Arrays for Breeding and Research Applications Supporting Multi-Species Hybridization. Front Plant Sci. 2021;12:756877. Published 2021 Dec 22. doi:10.3389/fpls.2021.756877

Organization: CSIRO Data Access Portal
Parkes observations for project P630 semester 2011APRS_13

We propose to carry out the most ambitious and comprehensive all-sky survey for pulsars and transient sources to date. Using the 20cm multibeam and a new digital filterbank array this survey will create a petabyte digital record of the sky that can be data mined in the future and used to search for relativistic binary and millisecond pulsars, RRATs, and extragalactic radio bursts. The survey should discover 100s of new millisecond and normal pulsars and help define the lower limit to pulsar periods, test theories of relativistic gravity, find transients and provide pulsars for gravitational wave detection.

Organization: CSIRO Data Access Portal
Parkes observations for project P1386 semester 2025OCTS_02

J0045-7319 is a B star/pulsar binary in the Small Magellanic Cloud (SMC) with an orbital period of 51 days. The system is highly eccentric, with a closest approach of only 6 B-star radii, and it offers an unusual probe into massive stars in the SMC. Although similar systems exhibit strong dispersion measure (DM) variation during periastron arising from the stellar wind, observations in 1996 on the Parkes 70 cm receiver found no evidence of a wind from the B star. We propose a new set of observations on the Ultra-Wide Low-frequency receiver (UWL) designed to measure the wind. A null result will decrease the known upper limit on the B-star wind's contribution to DM by a factor of 9.

Organization: CSIRO Data Access Portal
Parkes observations for project P1381 semester 2025OCTS_03

The Galactic bulge is theorized to host a rich population of millisecond pulsars (MSPs), but direct detections have been severely hampered by high interstellar scattering, dispersion, and background noise near the Galactic center. These MSPs, if confirmed, would serve as powerful tools for testing gravity, studying dense matter, and probing gravitational waves. A key indirect tracer of this population is the Fermi GeV excess (FGE), an unresolved gamma-ray signal possibly originating from thousands of faint MSPs. However, the lack of direct detections has limited our ability to test this hypothesis.
  The MeerKAT Galactic Bulge Survey (MGBS) is the most sensitive pulsar search yet of this region, targeting the bulge MSP population. Early results from MGBS have already revealed several promising MSP candidates. We propose to use Murriyang to conduct targeted follow-up observations of three of the most compelling candidates from MGBS. Our goals are to confirm the pulsations, refine key parameters such as spectral indices and orbital characteristics, and strengthen their association with the bulge.
  Confirming even a handful of bulge MSPs would have wide-reaching impact: constraining the origin of the FGE, testing dark matter interpretations, refining models of Galactic structure, and improving predictions for low-frequency gravitational wave backgrounds. This proposal is a critical next step toward establishing a long-sought bulge MSP population and unlocking new physics from the inner Galaxy.

Organization: CSIRO Data Access Portal
Long-term project observations for project P1321 semester 2025OCTS_01

The atomic interstellar medium shows tiny-scale optical depth fluctuations on the scale of 0.1~10,000 AU, whose origin and nature are poorly understood. The existence of this Tiny-Scale Atomic Structure (TSAS) has significant implications, potentially calling into question our fundamental understanding of heating, cooling and dynamical processes in the interstellar medium. Yet observations remain sparse. This long-term project plans to search for temporal variations in HI absorption spectra seen against background pulsars to characterise TSAS in the Milky Way interstellar medium (ISM). These observations constitute the largest number of sightlines and densest temporal sampling ever performed in a single experiment, and will test predictions that TSAS is the tail end of a turbulent cascade, constrain its minimum size scale (down to resolutions of ~0.05 AU) and potentially provide the first direct measurements of pressures in "large" TSAS features of &gt; 1000 AU. We make use of the phase-resolved spectral line mode that we have recently implemented on Parkes, which has cut data rates and processing times by factors of ~1000 compared to past studies. This is an expansion of our pilot P1321 to a long term study.

Organization: CSIRO Data Access Portal
Parkes observations for project P1054 semester 2025OCTS_03

With this proposal we ask time to continue our timing follow-up campaign of pulsars discovered with the MeerKAT telescope. Fourtyfour sources have been discovered in targeted observations of Fermi unidentified point sources, two towards Supernova Remnants, 26 in the Magellanic Clouds, 106 in Globular Clusters and 87 in a survey of the Galactic plane. A large fraction of the new discoveries are recycled pulsars (including a few relativistic systems, a pulsar with a planetary companion and  several 'spider' binaries), or young pulsars. Timing observations have an essential role in exploiting the full potential of any pulsar discovery, allowing for the precise measurement of rotational, astrometric and orbital parameters which, in turn, give us powerful tools to improve our understanding of the physics in extreme environments as well as of the population of neutron stars as a whole. The UWL receiver of the Parkes telescope is a sensitive, versatile instrument that is allowing us to successfully time these new sources, in the bright-end of TRAPUM discoveries.

Organization: CSIRO Data Access Portal
The Wells limestone, A.C.T., as a source of aggregate

Wells Limestone, situated 8 miles from Canberra in A.C.T., is a lens of massive limestone in a formation largely consisting of shales of Silurian age. The gently undulating topography and the low relief of the area of outcrop itself do not provide an attractive quarry site, although the stone seems very suitable for use as aggregate. Soil interpretation from shallow bores indicate considerable extensions of the deposit beyond the outcrop. 'Indicated' and 'inferred' reserves of limestone [have] been calculated, although further proving of reserves should be done before it is decided to establish a crushing plant at the deposit.

Tags: AU-ACT, Earth Sciences, GA Publication, Published_External, Record, geology, mineral deposits, resource assessment
Organization: Geoscience Australia Data
Beelbangera 2024 Long Coleoptile Wheat Trials: Genotype, Sowing Depth, Fertiliser, and Seed Size Interactions for Early Establishment and Yield Performance

This dataset comprises detailed agronomic data from three coordinated field experiments conducted at Beelbangera, NSW. The trials investigate the effects of genotype, sowing depth, fertiliser placement and rate, and seed size on wheat establishment and yield performance.
The Excel workbook contains 14 sheets, which include trial details, site maps, treatment layouts, packet plans, raw plot-level data, processed metrics, and harvest index calculations. The data is structured with consistent identifiers such as run number, genotype, sowing depth, fertiliser treatment, and seed size category. Raw data entries include grain yield per plot, sowing depth, genotype, fertiliser rate, and plot dimensions, enabling calculation of yield per hectare. Additional sheets provide derived metrics such as grain count, canopy cover, SAVI (Soil Adjusted Vegetation Index), and harvest index.
Data was collected using standard field trial methodologies. Sowing was performed on 29 April 2024 using a Morris seeder at two depths: shallow (4 cm) and deep (12–14 cm). Fertiliser was applied either with the seed or above the seed, at safe (80 kg/ha MAP) and unsafe (160 kg/ha MAP) rates. Trials were replicated three times with consistent plot sizes (12 m × 1.75 m) and row spacing (25 cm × 7 rows). Environmental conditions were monitored, including rainfall (362.5 mm total, 246 mm in the growing season), and soil tests were conducted pre-sowing (pH 6.2, total N 57 kg/ha, Colwell P 38 ppm). Herbicide and fertiliser applications were logged with dates and rates.
The dataset includes over 100 variables. Key fields include genotype (e.g., Calibre, Mace18, Magenta13), sowing depth, fertiliser rate and placement, seed size (e.g., small, medium, large), grain yield, biomass, spike count, and vegetation indices. Codes such as “SS” and “DS” denote sowing depth, while “Std”, “Lge”, “Sml”, “Med”, and “Vlge” refer to seed size categories. Fertiliser treatments are coded as “Cont”, “Withseed”, and “Aboveseed”. The dataset also includes image references for visual assessments and positional metadata for canopy measurements.

Organization: CSIRO Data Access Portal
Birchip 2024 Long Coleoptile Wheat Trial: Genotype, Sowing Depth, Presswheel Pressure Effects on Emergence, Growth, and Yield

This dataset originates from a comprehensive field trial conducted in Birchip, Victoria, during the 2024 winter cropping season. The trial, identified as 24_Nulla_0124_Long Coleoptile, involved 108 plots across six ranges and 26 rows, with GPS-referenced layout and border plots included. Treatments combined three factors: wheat genotype (including Mace18, Magenta13, Scepter, Calibre), sowing depth (shallow or deep), and presswheel pressure (light, standard, heavy). 

The dataset comprises multiple Excel sheets detailing agronomic measurements, environmental conditions, and sensor data. Soil water content was assessed gravimetrically and via matric potential across 12 plots at six depth increments (0–12 cm), both pre- and post-sowing. Soil strength was measured using a penetrometer, with readings taken in 2 cm increments and converted to kg/cm². Soil temperature was monitored using sensors placed at the surface, 3–4 cm, and 8–10 cm depths in two plots, with high-frequency time-series data recorded over several days. Emergence was tracked biweekly and then weekly from sowing through six weeks, with counts taken from 1 m sections of seeding rows. Coleoptile length and sowing depth were measured from 20 seedlings per tyne per plot, with values ranging from approximately 1.3 to 8.6 cm and 2.8 to 10.8 cm respectively. NDVI readings were collected using a handheld Greenseeker across 10 dates, showing progressive canopy development with values ranging from 0.09 to 0.79 and CV% from 0.5 to 29.5. Zadoks scores were recorded weekly from early September to October, capturing phenological stages from stem elongation to anthesis (Z43–Z71).

Rabbit damage was assessed on 06/07/2024, with severity scores (1–5) and percent chewed recorded per plot. Final harvest data includes grain yield (raw and corrected), moisture content, protein percentage, test weight, screenings, and emergence rates. The dataset is structured for analytical modeling, enabling genotype, depth, pressure comparisons and supporting time-series analysis of emergence, growth, and yield. It includes both raw and processed data, with consistent formatting and minimal missing values. Some metadata corruption is present but does not affect core data usability.

Organization: CSIRO Data Access Portal
Parkes observations for project P1375 semester 2025OCTS_02

Open clusters have historically shown a striking absence of neutron stars due to their shallow gravitational potential wells that cannot retain these compact objects after supernova explosions with large natal kicks. However, our recent archival search of Parkes observations has discovered three promising Rotating Radio Transient (RRAT) candidates, RRAT J1749-25, RRAT J1702-44, and RRAT J1237-60, in the direction of old open clusters. The dispersion measure (DM) analysis provides compelling evidence for cluster membership, with RRAT J1749-25 showing DM consistent with Theia 1661's predicted values, and RRAT J1237-60 exhibiting DM comparable to Trumpler 20's expectations. These detections are based on limited single-pulse observations with signal-to-noise ratios of ~7-8, requiring confirmation through extended observations. We propose follow-up observations using the Parkes Ultra-Wideband Low receiver with doubled integration times (2 hours per source, repeated twice) to confirm the astrophysical nature of these candidates and characterise their emission properties. Confirmation of neutron stars in open clusters would have profound implications for stellar evolution models, neutron star retention mechanisms, and our understanding of binary evolution in different stellar environments.

Organization: CSIRO Data Access Portal