19 March 2003 FA/GPSW.390 Dear Colleagues, Please find enclosed tracking schedule No. 40 for international time and frequency comparisons by GPS common-view single-channel receivers. Computation of this schedule is fully automated. It follows that all areas have an equal number of tracks (48). The enclosed schedule should be implemented on MJD 52732 ( 03 April 2003) 00 h 00 UTC. The GPS tracking schedules continue to be sent to regular users by e-mail and are also available by anonymous FTP (ftp2.bipm.org, node 62.161.69.5, subdirectory pub\tai\publication) and on the BIPM website (http://www.bipm.org). The track times given in this schedule are the start times for the 13 minute standard tracks. Because a period of about 2 minutes is usually required to lock the receiver onto the satellite signal, this delay must be subtracted from the given track time. It follows that if you operate an 'NBS-type' receiver, for instance TTR 5, TTR 5A, TTR 6 or TTR 6A from AOA, you must modify the given track time: for example, the European schedule of PRN 08 at 00 h 06 should be entered in the AOA receivers at 00 h 04. For TTR 6 users a utility software (TTR6SCHLOAD) to upload correctly the schedule in the receiver can be found in the FTP server (ftp2.bipm.org, node 62.161.69.5, subdirectory pub\tai\data). This tracking schedule conforms with the technical directives for standardization drawn up by the CCTF Group on Global navigation satellite systems Time Transfer Standards (CGGTTS). Please feel free to contact us if there are questions, suggestions or comments regarding the enclosed documents. Yours sincerely, E. Felicitas Arias Head, Time Section Note for multi-channel receivers Multi-channel receivers do not need to implement the new schedules if they refer track times to MJD 50722 (1 October 1997), the reference date of GPS schedule No. 29. As schedules for single-channel receivers always refer to this date, compatibility between multi- channel and single-channel observations is maintained. In the future, when all single-channel receivers are withdrawn from operation, the use of a fixed reference date for "all-in-view" observations by multi-channel receivers will allow us to cease publication of this common-view schedule. *************************************************************************** * GPS Schedule no 40 * * for implementation on MJD 52732 (2003 April 03) at 0h UTC * * Reference date MJD 50722 (1997 October 1) * *************************************************************************** This is a suggested tracking schedule for international time comparisons using GPS satellites in common-view between ten areas of the globe. Area Participating laboratories Europe E AOS, BEV, CAO, CH, DLR, DTAG, IEN, IFAG,IPQ, LDS, LT, Mad*, NIMB*, NMC, NPL, OMH, OP, ORB, PL, PTB, RAAI*, RIRT*, ROA, SMU, SP, SU, TP, UME, VSL East North America ENA AO*, NRC, USNO West North America WNA CNM, NIST, AMC, Gold*, WWV* Hawaii H WWVH* East Asia EA BIRM, CRL, JATC, KRIS, NAO, NIM, NIMT, NMIJ, NMLS, NTSC, SCL, SG, TL Australia and New Zealand A AUS, Can*, MSL India I NPLI Middle East ME INPL South Africa SAF CSIR South America SAM IGMA, Kou*, ONBA, ONRJ, TCC* Laboratories participating in TAI are designated by their usual acronyms (see Table 3 of the Annual Report of the BIPM Time Section, Volume 14, 2001); other laboratories are indicated by an asterisk. * Mad, Gold, Can : JPL Deep Space Network, Madrid, Goldstone, Canberra. WWV, WWVH : NIST stations in Colorado and Hawaii. AO : Arecibo Observatory. Kou: CNES Kourou Center. RIRT: Russian Institute of Radionavigation and Time, Saint Petersburg. RAAI: Romanian Academy Astronomical Institute, Bucarest. NIMB: National Institute of Metrology, Bucharest, Romania TCC: TIGO, Concepcion, Chile. The start times of the tracks are referenced to UTC. The start time of a track is the date of the first observation. It may be necessary to advance this time by 2 minutes if you operate an NBS-type receiver, in order to allow the lock-on procedure onto the satellite signal. The track length is 780 s. All the track times should be decremented by 4 minutes each day, to account for the GPS sidereal orbits. The class bytes are such that in association with the satellite number they form a unique identifyer for each common view. GPS Schedule no 40 ( 3 April 2003) *** Europe *** Class PRN Start Connects h m A0 08 0 6 ME,I,EA A0 28 0 38 ME,I,EA BC 07 0 54 SAF,ME,I BD 07 1 10 SAF,ME,I A1 28 1 26 ME,I,EA 18 18 1 42 WNA,ENA,SAM A0 07 1 58 ME,I,EA A1 07 2 14 ME,I,EA 19 18 2 30 WNA,ENA,SAM A2 07 2 46 ME,I,EA BC 24 4 22 SAF,ME,I,EA BC 09 4 38 SAF,ME,I BD 09 4 54 SAF,ME,I A0 24 5 10 ME,I,EA A1 24 5 26 ME,I,EA 74 25 6 46 WNA,ME,ENA,SAM BC 05 7 2 SAF,ME,I BC 30 7 34 SAF,ME,I BD 30 7 50 SAF,ME,I D4 30 8 22 SAF,ME,I 74 16 8 38 WNA,ME,ENA BC 18 9 38 SAF,ME,I 74 02 9 54 WNA,ME,ENA 75 02 10 10 WNA,ME,ENA A0 17 10 26 ME,I,EA 74 03 10 42 WNA,ME,ENA BD 16 11 30 SAF,ME,SAM A0 23 11 46 ME,I,EA A0 18 12 2 ME,I,EA 18 11 12 34 WNA,ENA,SAM BC 14 13 6 SAF,ME,I BC 03 13 22 SAF,ME,I BD 03 13 38 SAF,ME,I 18 28 14 26 WNA,ENA,SAM BC 11 16 18 SAF,ME,I 18 07 16 34 WNA,ENA,SAM 19 07 17 6 WNA,ENA,SAM 1A 07 17 22 WNA,ENA,SAM 74 04 18 10 WNA,ME,ENA BC 20 18 58 SAF,ME,I A0 01 19 30 ME,I,EA 74 24 19 46 WNA,ME,ENA,SAM 74 10 21 22 WNA,ME,ENA 18 26 22 26 WNA,ENA,SAM 74 29 22 42 WNA,ME,ENA A0 27 22 58 ME,I,EA BC 10 23 14 SAF,ME,SAM A1 08 23 30 ME,I,EA GPS Schedule no 40 ( 3 April 2003) *** E. North America *** *** W. North America *** *** East Asia *** Class PRN Start Connects Class PRN Start Connects Class PRN Start Connects h m h m h m 18 17 0 6 WNA,SAM 18 17 0 6 ENA,SAM A0 08 0 6 ME,I,E 19 17 0 22 WNA,SAM 19 17 0 22 ENA,SAM A0 28 0 38 ME,I,E 34 15 0 38 WNA,H 34 15 0 38 H,ENA A1 28 1 26 ME,I,E 68 17 0 54 SAM 34 14 1 10 H,ENA 38 11 1 42 I,H 34 14 1 10 WNA,H 18 15 1 26 ENA,SAM A0 07 1 58 ME,I,E 18 15 1 26 WNA,SAM 18 18 1 42 ENA,E,SAM A1 07 2 14 ME,I,E 18 18 1 42 WNA,E,SAM 19 18 2 30 ENA,E,SAM A2 07 2 46 ME,I,E 68 23 2 14 SAM 34 11 3 2 H,EA 34 11 3 2 WNA,H 19 18 2 30 WNA,E,SAM 35 11 3 18 H,EA 35 11 3 18 WNA,H 68 18 2 46 SAM D4 11 3 34 H,EA D4 11 3 34 WNA,H 69 18 3 2 SAM 34 20 4 54 H,EA,ENA AC 28 3 50 I,A 68 30 3 34 SAM 34 01 5 58 H,EA BC 24 4 22 SAF,ME,I,E 34 20 4 54 WNA,H,EA 35 01 6 14 H,EA,ENA 34 20 4 54 WNA,H,ENA 68 14 5 26 SAM 34 02 6 30 H,ENA,SAM A0 24 5 10 ME,I,E 35 01 6 14 WNA,H,EA 74 25 6 46 ME,ENA,E,SAM A1 24 5 26 ME,I,E 34 02 6 30 WNA,H,SAM 35 02 7 2 H,ENA,SAM AC 07 5 42 I,A 74 25 6 46 WNA,ME,E,SAM D4 02 7 18 H,ENA,SAM 34 01 5 58 WNA,H 35 02 7 2 WNA,H,SAM 34 13 7 34 H,EA,ENA 35 01 6 14 WNA,H,ENA D4 02 7 18 WNA,H,SAM 35 13 7 50 H,EA,ENA 34 13 7 34 WNA,H,ENA 34 13 7 34 WNA,H,EA 74 16 8 38 ME,ENA,E 35 13 7 50 WNA,H,ENA 35 13 7 50 WNA,H,EA 34 27 8 54 H,EA 3C 04 8 6 A,H 68 03 8 22 SAM 35 27 9 10 H,EA,ENA 3D 04 8 38 A,H 74 16 8 38 WNA,ME,E 74 02 9 54 ME,ENA,E 34 27 8 54 WNA,H 35 27 9 10 WNA,H,EA 75 02 10 10 ME,ENA,E 35 27 9 10 WNA,H,ENA 74 02 9 54 WNA,ME,E 74 03 10 42 ME,ENA,E 3C 24 9 54 A,H 75 02 10 10 WNA,ME,E D4 13 10 58 H,ENA,SAM A0 17 10 26 ME,I,E 74 03 10 42 WNA,ME,E 18 11 12 34 ENA,E,SAM AC 09 11 30 I,A D4 13 10 58 WNA,H,SAM 18 27 12 50 ENA,SAM A0 23 11 46 ME,I,E 18 11 12 34 WNA,E,SAM 18 28 14 26 ENA,E,SAM A0 18 12 2 ME,I,E 18 27 12 50 WNA,SAM 34 04 14 58 H,ENA,SAM 3C 05 13 54 A,H 18 28 14 26 WNA,E,SAM 35 04 15 14 H,ENA,SAM AC 23 14 42 I,A 34 04 14 58 WNA,H,SAM D4 04 15 30 H,ENA,SAM AC 18 15 14 I,A 35 04 15 14 WNA,H,SAM 18 07 16 34 ENA,E,SAM 3C 06 16 18 A,H D4 04 15 30 WNA,H,SAM 34 05 16 50 H,EA,ENA 3D 06 16 34 A,H 18 07 16 34 WNA,E,SAM 19 07 17 6 ENA,E,SAM 34 05 16 50 WNA,H,ENA 34 05 16 50 WNA,H,EA 1A 07 17 22 ENA,E,SAM D5 06 17 6 A,H 19 07 17 6 WNA,E,SAM 74 04 18 10 ME,ENA,E AC 14 17 22 I,A,H 1A 07 17 22 WNA,E,SAM 34 06 18 42 H,EA 34 06 18 42 WNA,H 74 04 18 10 WNA,ME,E 35 06 19 14 H,EA,ENA 35 06 19 14 WNA,H,ENA 35 06 19 14 WNA,H,EA 74 24 19 46 ME,ENA,E,SAM A0 01 19 30 ME,I,E 74 24 19 46 WNA,ME,E,SAM D4 06 20 2 H,ENA AD 03 20 2 I,A D4 06 20 2 WNA,H 74 10 21 22 ME,ENA,E AE 03 20 18 I,A 74 10 21 22 WNA,ME,E D5 06 21 54 H,ENA,SAM 3C 25 20 50 A,H D5 06 21 54 WNA,H,SAM D6 06 22 10 H,ENA,SAM 38 03 22 26 I,H D6 06 22 10 WNA,H,SAM 18 26 22 26 ENA,E,SAM A0 27 22 58 ME,I,E 18 26 22 26 WNA,E,SAM 74 29 22 42 ME,ENA,E 80 16 23 14 WNA,A,H 74 29 22 42 WNA,ME,E 80 16 23 14 A,H,EA A1 08 23 30 ME,I,E 34 18 23 30 WNA,H 34 18 23 30 H,ENA 38 31 23 46 I,H GPS Schedule no 40 ( 3 April 2003) *** Hawaii *** *** Australia *** *** India *** Class PRN Start Connects Class PRN Start Connects Class PRN Start Connects h m h m h m 3C 02 0 6 A 3C 02 0 6 H A0 08 0 6 ME,EA,E 34 15 0 38 WNA,ENA CC 13 0 22 SAF A0 28 0 38 ME,EA,E 3C 16 0 54 A F9 01 0 38 A BC 07 0 54 SAF,ME,E 34 14 1 10 WNA,ENA 3C 16 0 54 H BD 07 1 10 SAF,ME,E 3D 02 1 26 A FA 01 1 10 A A1 28 1 26 ME,EA,E 38 11 1 42 I,EA 3D 02 1 26 H 38 11 1 42 H,EA 3C 20 1 58 A FB 01 1 42 A A0 07 1 58 ME,EA,E 3C 01 2 46 A 3C 20 1 58 H A1 07 2 14 ME,EA,E 34 11 3 2 WNA,EA FC 01 2 14 A A2 07 2 46 ME,EA,E 35 11 3 18 WNA,EA 3C 01 2 46 H A4 24 3 18 SAF D4 11 3 34 WNA,EA AC 28 3 50 I,EA A5 24 3 34 SAF 34 20 4 54 WNA,EA,ENA CC 29 5 10 SAF AC 28 3 50 A,EA 34 01 5 58 WNA,EA CD 29 5 26 SAF BC 24 4 22 SAF,ME,EA,E 35 01 6 14 WNA,EA,ENA AC 07 5 42 I,EA BC 09 4 38 SAF,ME,E 34 02 6 30 WNA,ENA,SAM D4 29 5 58 SAF BD 09 4 54 SAF,ME,E 35 02 7 2 WNA,ENA,SAM CC 26 6 14 SAF A0 24 5 10 ME,EA,E D4 02 7 18 WNA,ENA,SAM CD 26 6 46 SAF A1 24 5 26 ME,EA,E 34 13 7 34 WNA,EA,ENA 3C 04 8 6 H,EA AC 07 5 42 A,EA 35 13 7 50 WNA,EA,ENA 3D 04 8 38 H,EA BC 05 7 2 SAF,ME,E 3C 04 8 6 A,EA CC 09 8 54 SAF BD 05 7 18 SAF,ME 3D 04 8 38 A,EA 3C 24 9 54 H,EA BC 30 7 34 SAF,ME,E 34 27 8 54 WNA,EA CC 05 10 10 SAF BD 30 7 50 SAF,ME,E 35 27 9 10 WNA,EA,ENA CC 30 10 58 SAF D4 30 8 22 SAF,ME,E 3C 24 9 54 A,EA AC 09 11 30 I,EA A4 30 8 38 SAF D4 13 10 58 WNA,ENA,SAM CC 06 11 46 SAF BC 23 9 10 SAF,ME 3C 10 12 34 A CD 06 12 2 SAF BC 18 9 38 SAF,ME,E 3D 10 12 50 A D4 06 12 18 SAF A4 18 9 54 SAF 3C 05 13 54 A,EA 3C 10 12 34 H A0 17 10 26 ME,EA,E 34 04 14 58 WNA,ENA,SAM 3D 10 12 50 H AC 09 11 30 A,EA 35 04 15 14 WNA,ENA,SAM 3C 05 13 54 H,EA A0 23 11 46 ME,EA,E D4 04 15 30 WNA,ENA,SAM AC 23 14 42 I,EA A0 18 12 2 ME,EA,E 38 30 15 46 I AC 18 15 14 I,EA BC 14 13 6 SAF,ME,E 3C 06 16 18 A,EA CC 15 15 30 SAF BC 03 13 22 SAF,ME,E 3D 06 16 34 A,EA CC 16 16 2 SAF BD 03 13 38 SAF,ME,E 34 05 16 50 WNA,EA,ENA 3C 06 16 18 H,EA AC 23 14 42 A,EA D5 06 17 6 A,EA 3D 06 16 34 H,EA AC 18 15 14 A,EA AC 14 17 22 I,A,EA D5 06 17 6 H,EA 38 30 15 46 H 34 06 18 42 WNA,EA AC 14 17 22 I,H,EA BC 11 16 18 SAF,ME,E 35 06 19 14 WNA,EA,ENA CC 03 17 38 SAF AC 14 17 22 A,H,EA 3C 15 19 30 A CC 31 18 26 SAF BC 20 18 58 SAF,ME,E D4 06 20 2 WNA,ENA 3C 15 19 30 H A0 01 19 30 ME,EA,E 3C 25 20 50 A,EA AC 03 19 46 I AC 03 19 46 A D5 06 21 54 WNA,ENA,SAM AD 03 20 2 I,EA AD 03 20 2 A,EA D6 06 22 10 WNA,ENA,SAM AE 03 20 18 I,EA AE 03 20 18 A,EA 38 03 22 26 I,EA 3C 25 20 50 H,EA 38 03 22 26 H,EA 80 16 23 14 WNA,A,EA CC 20 21 54 SAF A0 27 22 58 ME,EA,E 34 18 23 30 WNA,ENA CD 20 22 26 SAF A1 08 23 30 ME,EA,E 38 31 23 46 I,EA 80 16 23 14 WNA,H,EA 38 31 23 46 H,EA GPS Schedule no 40 ( 3 April 2003) *** Middle East *** *** South Africa *** *** South America *** Class PRN Start Connects Class PRN Start Connects Class PRN Start Connects h m h m h m A0 08 0 6 I,EA,E CC 13 0 22 A 18 17 0 6 WNA,ENA A0 28 0 38 I,EA,E BC 07 0 54 ME,I,E 19 17 0 22 WNA,ENA BC 07 0 54 SAF,I,E BD 07 1 10 ME,I,E F8 05 0 38 SAM BD 07 1 10 SAF,I,E A4 24 3 18 I 68 17 0 54 ENA A1 28 1 26 I,EA,E A5 24 3 34 I FB 05 1 10 SAM A0 07 1 58 I,EA,E CA 06 4 6 SAM 18 15 1 26 WNA,ENA A1 07 2 14 I,EA,E BC 24 4 22 ME,I,EA,E 18 18 1 42 WNA,ENA,E A2 07 2 46 I,EA,E BC 09 4 38 ME,I,E FC 05 1 58 SAM BC 24 4 22 SAF,I,EA,E BD 09 4 54 ME,I,E 68 23 2 14 ENA BC 09 4 38 SAF,I,E CC 29 5 10 A 19 18 2 30 WNA,ENA,E BD 09 4 54 SAF,I,E CD 29 5 26 A 68 18 2 46 ENA A0 24 5 10 I,EA,E D4 29 5 58 A 69 18 3 2 ENA A1 24 5 26 I,EA,E CC 26 6 14 A F8 06 3 18 SAM 74 25 6 46 WNA,ENA,E,SAM CD 26 6 46 A 68 30 3 34 ENA BC 05 7 2 SAF,I,E BC 05 7 2 ME,I,E FB 06 3 50 SAM BD 05 7 18 SAF,I BD 05 7 18 ME,I CA 06 4 6 SAF BC 30 7 34 SAF,I,E BC 30 7 34 ME,I,E F8 18 4 22 SAM BD 30 7 50 SAF,I,E BD 30 7 50 ME,I,E FB 18 4 38 SAM BC 15 8 6 SAF,SAM BC 15 8 6 ME,SAM FC 18 4 54 SAM D4 30 8 22 SAF,I,E D4 30 8 22 ME,I,E F8 16 5 10 SAM 74 16 8 38 WNA,ENA,E A4 30 8 38 I 68 14 5 26 ENA BC 23 9 10 SAF,I CC 09 8 54 A 34 02 6 30 WNA,H,ENA BC 18 9 38 SAF,I,E BC 23 9 10 ME,I 74 25 6 46 WNA,ME,ENA,E 74 02 9 54 WNA,ENA,E BC 18 9 38 ME,I,E 35 02 7 2 WNA,H,ENA 75 02 10 10 WNA,ENA,E A4 18 9 54 I D4 02 7 18 WNA,H,ENA A0 17 10 26 I,EA,E CC 05 10 10 A BC 15 8 6 SAF,ME 74 03 10 42 WNA,ENA,E CC 30 10 58 A 68 03 8 22 ENA BC 16 11 14 SAF,SAM BC 16 11 14 ME,SAM D4 13 10 58 WNA,H,ENA BD 16 11 30 SAF,E,SAM BD 16 11 30 ME,E,SAM BC 16 11 14 SAF,ME A0 23 11 46 I,EA,E CC 06 11 46 A BD 16 11 30 SAF,ME,E A0 18 12 2 I,EA,E CD 06 12 2 A 18 11 12 34 WNA,ENA,E BC 14 13 6 SAF,I,E D4 06 12 18 A 18 27 12 50 WNA,ENA BC 03 13 22 SAF,I,E BC 14 13 6 ME,I,E 18 28 14 26 WNA,ENA,E BD 03 13 38 SAF,I,E BC 03 13 22 ME,I,E 34 04 14 58 WNA,H,ENA BC 11 16 18 SAF,I,E BD 03 13 38 ME,I,E 35 04 15 14 WNA,H,ENA 74 04 18 10 WNA,ENA,E CC 15 15 30 A D4 04 15 30 WNA,H,ENA BC 20 18 58 SAF,I,E CC 16 16 2 A 18 07 16 34 WNA,ENA,E BC 08 19 14 SAF,SAM BC 11 16 18 ME,I,E 19 07 17 6 WNA,ENA,E A0 01 19 30 I,EA,E CC 03 17 38 A 1A 07 17 22 WNA,ENA,E 74 24 19 46 WNA,ENA,E,SAM CC 31 18 26 A BC 08 19 14 SAF,ME BC 04 20 2 SAF,SAM BC 20 18 58 ME,I,E 74 24 19 46 WNA,ME,ENA,E BD 04 20 18 SAF,SAM BC 08 19 14 ME,SAM BC 04 20 2 SAF,ME 74 10 21 22 WNA,ENA,E BC 04 20 2 ME,SAM BD 04 20 18 SAF,ME 74 29 22 42 WNA,ENA,E BD 04 20 18 ME,SAM D5 06 21 54 WNA,H,ENA A0 27 22 58 I,EA,E CC 20 21 54 A D6 06 22 10 WNA,H,ENA BC 10 23 14 SAF,E,SAM CD 20 22 26 A 18 26 22 26 WNA,ENA,E A1 08 23 30 I,EA,E BC 10 23 14 ME,E,SAM BC 10 23 14 SAF,ME,E BD 10 23 46 SAF,SAM BD 10 23 46 ME,SAM BD 10 23 46 SAF,ME