Publication: Magyar Közlöny
Issue: MK-2007-70 (Year: 2007, Number: 70)
Era: 2004-2010
Section: Melléklet a 2007. évi XLVI. törvényhez
Paragraph Index: 3451

b) the 25th pages of subframes 4 and 5 jointly shall contain 6-bit health data for up to 32 satellites. 3.1.1.3.3.4.1 The 8-bit health status words shall occupy bits 17 through 24 of word 5 in those 32 pages that contain the almanac data for individual satellites. The 6-bit health status words shall occupy the 24 MSBs of words 4 through 9 in page 25 of subframe 5, and bits 19 through 24 of word 8, the 24 MSBs of word 9, and the 18 MSBs of word 10 in page 25 of subframe 4. able Almanac parameters Parameter Number of bits** Scale factor (LSB) Effective range*** Units e 2 21 dimensionless toa 602 112 seconds įi **** 16* 2 19 semi-circles OMEGADOT 16* 2 38 semi-circles/second A 24* 2 11 metres1/2 OMEGA0 24* 2 23 semi-circles Ȧ 24* 2 23 semi-circles M0 24* 2 23 semi-circles af0 11* 2 20 seconds af1 11* 2 38 seconds/second * Parameters so indicated are two s complement, with the sign bit ( or ) occupying the MSB. ** See Figure B-6 for complete bit allocation in subframe. *** Unless otherwise indicated in this column, effective range is the maximum range attainable with the indicated bit allocation and scale factor. **** Relative to i0 0.30 semi-circles. 23/11/06 A 2007/70/II. szám A endix Annex 10 — Aeronautical Communications 3.1.1.3.3.4.2 The 3 MSBs of the 8-bit health status words shall indicate health of the navigation data in accordance with the code given in Table B-9. The 6-bit words shall provide a 1-bit summary of the navigation data s health status in the MSB position in accordance with 3.1.1.3.1.3. The 5 LSBs of both the 8-bit and the 6-bit health status words shall provide the health status of the satellite s signal components in accordance with the code given in Table B-10. able a igation data ealt indication Bit position in page Indication ALL DATA OK PARITY FAILURE — some or all parity bad TLM/HOW FORMAT PROBLEM — any departure from standard format (e.g. preamble misplaced and/or incorrect), except for incorrect -count, as reported in HOW -COUNT in HOW BAD — any problem with -count value not reflecting actual code phase SUBFRAMES 1, 2, 3 — one or more elements in words 3 through 10 of one or more subframes are bad SUBFRAMES 4, 5 — one or more elements in words 3 through 10 of one or more subframes are bad ALL UPLOADED DATA BAD — one or more elements in words 3 through 10 of any one (or more) subframes are bad ALL DATA BAD — TLM word and/or HOW and one or more elements in any one (or more) subframes are bad able Codes for ealt of satellite signal components MSB LSB Indication ALL SIGNALS OK SATELLITE IS TEMPORARILY OUT — do not use this satellite during current pass ___ SATELLITE WILL BE TEMPORARILY OUT — use with caution ___ SPARE MORE THAN ONE COMBINATION WOULD BE REQUIRED TO DESCRIBE ANOMALIES, EXCEPT THOSE MARKED BY ___ All other combinations SATELLITE EXPERIENCING CODE MODULATION AND/OR SIGNAL POWER LEVEL TRANSMISSION PROBLEMS. The user may experience intermittent tracking problems if satellite is acquired. A 23/11/06 2007/70/II. szám Annex 10 — Aeronautical Communications Volume I 3.1.1.3.3.4.3 A special meaning shall be assigned, to the 6 “ones” combination of the 6-bit health status words in the 25th pages of subframes 4 and 5; it shall indicate that “the satellite which has that ID is not available and there may be no data regarding that satellite in the page of subframe 4 or 5 that is assigned to normally contain the almanac data of that satellite”. Note This special meaning applies to the th pages of subframes and only There may be data regarding another satellite in the almanac page referred to above as defined in 3.1.1.3.3.4.4 The health indication shall be provided relative to the capabilities of each satellite as designated by the configuration code in 3.1.1.3.3.5. Accordingly, any satellite that does not have a certain capability shall be indicated as “healthy” if the lack of this capability is inherent in its design or it has been configured into a mode which is normal from a receiver standpoint and does not require that capability. The predicted health data shall be updated at the time of upload. Note The transmitted health data may not correspond to the actual health of the transmitting satellite or other satellites in the constellation Note The data given in subframes and of the other satellites may differ from that shown in subframes and or since the latter may be updated at a different time 3.1.1.3.3.5 Satellite configuration summary Page 25 of subframe 4 shall contain a 4-bit-long term for each of up to 32 satellites to indicate the configuration code of each satellite. These 4-bit terms shall occupy bits 9 through 24 of words 3, the 24 MSBs of words 4 through 7, and the 16 MSBs of word 8, all in page 25 of subframe 4. The first MSB of each field shall be reserved. The 3 LSBs shall indicate the configuration of each satellite using the following code: Code Satellite configuration Block II satellite 3.1.1.3.3.6 UTC parameters Page 18 of subframe 4 shall include:

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