From scheduling andPhase 2 generation viewpoints
Yu-Ting Wu (EA ARC)
and Phase 2 Generation Group in EA

What is Phase 2?
• Once a project has been approved for scheduling, it passes to Phase 2.
approved project
PIphase 2 stage
CS

P2G group

observing queue
JAOHD• Each approved project will be assigned an ALMA Contact Scientist (CS).
• A project Helpdesk (HD) ticket will be opened on behalf of the PI for
communication with the CS and others.
• ALMA staff will generate the Scheduling Blocks and, in case of problems,
will contact the CS and the PI. If no problems are found, the project will besubmitted to the ALMA observing queue to await execution at thetelescope.

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Why we care about scheduling and Phase 2 generation?
• Various aspects of a proposed observation such as weather conditions,requested angular resolution and Largest Angular Structure (LAS) are
important when an observation is scheduled.
• Let's plan observations to maximize project completion to achieve ourscientific goals!

31. Angular resolution• Observations are scheduled based on the angular resolution• Whenever a range of angular resolution is acceptable for the science goals, PIs areencouraged to enter a range covering more than one configuration.
ed!!

when yoYLNOisthode achiev
bnaclsaogienceur sc4

2. Weather• Section 4.3 of the ALMA Cycle 11 Proposer’s Guide• observations in Bands 7 through 10 outside of the LST
ranges given in the fourth column is limited.
Check the configuration schedule in SP during the cycle.

5mentioned in Nagai-san’s talk3. Spectral setup• Avoid placing spectral windows (spw) close to the baseband edge
• Any spw located within 30 MHz of the baseband edge could result incompromised flux calibration and might cause problems for finding thetuning solution for Local Oscillator signals as well.

tiomenne’s taegrod in Jlk6

4. Target of Opportunity (ToO) proposals with multiple-visit observation• Section 3.2 of the ALMA Cycle 11 Proposer’s Guide• PIs should be aware that, once a monitoring SG is triggered on a source, any
remaining unused visits within that SG cannot be re-assigned unless fully
justified and approved through a Major Change Request (see Section 6.2).

Visit 1 for assessing the target

If Visit 1 was executed but the PI finds that the source
is not suitable, the PI needs to submit a major change
request and get approval to use remaining unused
visits within the SG7

4. Target of Opportunity (ToO) proposals with multiple-visit observation• Section 3.2 of the ALMA Cycle 11 Proposer’s Guide• If it is desirable to use a first epoch of observations to assess target
properties (e.g., suitability for monitoring), it is recommended thatPIs create single-visit Science Goals (SGs) for this purpose, separate
from multi-visit SGs for any subsequent monitoring.
before•after

multi-visit SG for any
subsequent monitoring

Visit 1 for assessing the target

single-visit Science
Goals (SGs) for
assessing the target
85. Checking for duplications• Duplicate observations of the similar location on the sky with similar
observing parameters (frequency, angular resolution, coverage, andsensitivity) are not permitted unless scientifically justified (Section 4.4.1)

1.

2. on-going Grade Aor95. Checking for duplications• Criteria

ALMA Users’ Policies

106. Resubmission of an unfinished proposal• Proposal teams that submit a Cycle 11 proposal to observe some or all
the SGs of an unfinished project will have the relevant SGs identified as a“resubmission”.
• Criteria: Appendix A of the Users’ Policies• Policies (Section 4.4.2 of the ALMA Cycle 11 Proposer’s Guide):• For such resubmissions, the relevant portion of the Cycle 11 proposal will be canceled
if the observations are successfully completed in Cycle 10.
• Observations of a SG started in a previous cycle and accepted as a resubmission inCycle 11 will continue to be observed with the setup of the previous cycle.

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6. Resubmission of an unfinished proposal• Example:

Cycle 11 Proposal

Cycle 10 Proposal
The SG is executed but not completed yet..

Resubmission!
If the SG has been executed in Cycle10……
In Cycle11, the observation will continue in Cycle 10 proposal,
meaning achieving the sensitivity of 0.05 mJy.

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7. Change requests (Section 8 of the ALMA Users’ Policies)• Triple-check all setups before the proposal submission deadline!!
• After the PIs have been notified of the results of the proposal review
process, PIs of scheduled proposals may request necessary changes totheir project via the ALMA Helpdesk.
• Major changes (defined in Appendix B of the ALMA Users’ Policies) areallowed only if the change is essential for the science goals of the project.
Any major change request by a PI must be made by submitting a Helpdesk
ticket and will only be implemented after the approval of the change
request.

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7. Change requests (Section 8 of the ALMA Users’ Policies)• Major change requests may be motivated by the following considerations• New information received since the original proposal submission• e.g. new observations including interim observational results of aproject, other new information on planned observing targets, orexternally-imposed changes to the scheduling of time-coordinatedobservations at other observatories• Technical considerations for implementation during Phase 2 (that areinitiated by the PI, e.g. to optimize the scientific yield of the observations)• Mistakes made by the PI• Please read Section 8 and Appendix B of the ALMA Users’ Policies carefully
before requesting any changes!
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Observations that are particularly encouraged in Cycle 11• ACA, especially in the Local Sidereal Time (LST) range of 20h to 10h• High frequency (Bands 8, 9, and 10) in any configuration• Low frequency (Bands 1, 3, and 4) at long baselines (C-7, C-8, C-9, andC-10)15During
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Please don’t hesitate to contact us through the Helpdesk!
https://help.almascience.org/

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