21 September 2004 FA/GPSW.393 Dear Colleagues, Please find enclosed tracking schedule No. 43 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 53276 (28 September 2004) 00h00 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 eNBS-typef 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 In the future, when all single-channel receivers are withdrawn from operation, the use of a fixed reference date for gall-in-viewh observations by multi-channel receivers will allow us to cease publication of this common-view schedule. ***************************************************************************** * GPS Schedule no 43 * * for implementation on MJD 53276 (2004 September 28) 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, JV, 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*,APL, NRC, USNO West North America WNA CNM, CNMP, NIST, AMC, Gold*, WWV* Hawaii H WWVH* East Asia EA BIRM, HKO*, JATC, KRIS, NAO, NICT*, NIM, NIMT, NMIJ, NMLS, NTSC, SCL, SG, TL Australia and New Zealand A AUS, Can*, MSL India I NPLI Middle East ME INPL, NIS* 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 16, 2003); 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. NICT: This acronym has replaced CRL. HKO: Hong Kong Observatory. NIS: National Institute for standards, Egypt. 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 43 (28 September 2004) *** Europe *** Class PRN Start Connects h m 18 11 0 14 WNA,ENA,SAM 74 11 0 30 WNA,ME,ENA,SAM A0 14 0 46 ME,I,EA 18 28 1 18 WNA,ENA,SAM BC 01 1 34 SAF,ME,I A1 14 1 50 ME,I,EA BD 01 2 22 SAF,ME,I 18 07 3 10 WNA,ENA,SAM A0 01 3 42 ME,I,EA A1 01 3 58 ME,I,EA A2 01 4 14 ME,I,EA 74 04 5 2 WNA,ME,ENA BC 20 5 34 SAF,ME,I A0 23 5 50 ME,I,EA A1 23 6 22 ME,I,EA 74 24 6 38 WNA,ME,ENA,SAM A0 13 7 26 ME,I,EA A1 13 7 42 ME,I,EA 18 17 8 14 WNA,ENA,SAM 18 29 8 46 WNA,ENA,SAM A0 27 9 2 ME,I,EA 18 26 9 18 WNA,ENA,SAM 19 26 9 34 WNA,ENA,SAM A1 27 9 50 ME,I,EA A0 08 10 6 ME,I,EA A1 08 10 22 ME,I,EA BC 07 11 10 SAF,ME,I BD 07 11 26 SAF,ME,I A0 28 11 58 ME,I,EA 74 09 12 14 WNA,ME,ENA,SAM BC 29 12 30 SAF,ME,I BC 26 13 2 SAF,ME,I 18 14 15 10 WNA,ENA,SAM 19 14 15 26 WNA,ENA,SAM BC 09 15 42 SAF,ME,I BC 17 16 30 SAF,ME,I 74 25 17 50 WNA,ME,ENA,SAM BC 30 18 22 SAF,ME,I BD 30 18 38 SAF,ME,I D4 30 19 10 SAF,ME,I 74 16 19 26 WNA,ME,ENA 18 03 20 14 WNA,ENA,SAM 19 03 20 30 WNA,ENA,SAM 74 03 21 14 WNA,ME,ENA BC 22 21 46 SAF,ME,I 74 19 22 34 WNA,ME,ENA 75 19 22 50 WNA,ME,ENA A0 22 23 54 ME,I,EA GPS Schedule no 43 (28 September 2004) *** 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 11 0 14 WNA,E,SAM 18 11 0 14 ENA,E,SAM AC 21 0 14 I,A 74 11 0 30 WNA,ME,E,SAM 74 11 0 30 ME,ENA,E,SAM A0 14 0 46 ME,I,E 34 07 0 46 WNA,H 34 07 0 46 H,ENA 34 09 1 34 WNA,H 18 28 1 18 WNA,E,SAM 18 28 1 18 ENA,E,SAM A1 14 1 50 ME,I,E 34 04 1 50 WNA,H,SAM 34 09 1 34 H,EA AC 22 2 38 I,A 35 04 2 6 WNA,H,SAM 34 04 1 50 H,ENA,SAM 34 05 3 26 WNA,H,ENA D4 04 2 22 WNA,H,SAM 35 04 2 6 H,ENA,SAM A0 01 3 42 ME,I,E 18 07 3 10 WNA,E,SAM D4 04 2 22 H,ENA,SAM A1 01 3 58 ME,I,E 34 05 3 26 WNA,H,EA 18 07 3 10 ENA,E,SAM A2 01 4 14 ME,I,E 68 07 4 14 SAM 34 05 3 26 H,EA,ENA 34 30 4 30 WNA,H 69 07 4 30 SAM 34 30 4 30 H,EA 35 30 4 46 WNA,H 74 04 5 2 WNA,ME,E 35 30 4 46 H,EA A0 23 5 50 ME,I,E 34 17 5 18 WNA,H 74 04 5 2 ME,ENA,E 34 06 6 6 WNA,H 74 24 6 38 WNA,ME,E,SAM 34 17 5 18 H,ENA A1 23 6 22 ME,I,E 35 06 7 26 WNA,H 34 06 6 6 H,EA AC 03 6 54 I,A 68 26 7 42 SAM 74 24 6 38 ME,ENA,E,SAM AC 01 7 10 I,A 34 21 7 58 WNA,H,EA 35 06 7 26 H,ENA A0 13 7 26 ME,I,E 18 17 8 14 WNA,E,SAM 34 21 7 58 H,EA,ENA A1 13 7 42 ME,I,E 18 29 8 46 WNA,E,SAM 18 17 8 14 ENA,E,SAM 34 21 7 58 WNA,H,ENA 18 26 9 18 WNA,E,SAM 18 29 8 46 ENA,E,SAM A0 27 9 2 ME,I,E 19 26 9 34 WNA,E,SAM 18 26 9 18 ENA,E,SAM BC 13 9 18 SAF,ME,I 34 18 9 50 WNA,H 19 26 9 34 ENA,E,SAM A1 27 9 50 ME,I,E 68 09 10 38 SAM 34 18 9 50 H,ENA A0 08 10 6 ME,I,E 69 09 10 54 SAM 74 09 12 14 ME,ENA,E,SAM A1 08 10 22 ME,I,E 6A 09 11 10 SAM 34 15 12 46 H,ENA,SAM AC 11 10 38 I,A 74 09 12 14 WNA,ME,E,SAM 35 15 13 2 H,ENA,SAM A0 28 11 58 ME,I,E 34 15 12 46 WNA,H,SAM 34 25 14 22 H,ENA 3C 20 12 30 A,H 35 15 13 2 WNA,H,SAM 35 25 14 38 H,ENA 3D 20 13 18 A,H 34 25 14 22 WNA,H 18 14 15 10 ENA,E,SAM BD 04 13 34 SAF,ME,I 35 25 14 38 WNA,H 19 14 15 26 ENA,E,SAM AC 28 14 38 I,A 18 14 15 10 WNA,E,SAM 34 20 15 42 H,EA,ENA 3C 13 15 26 A,H 19 14 15 26 WNA,E,SAM 34 23 16 46 H,EA,ENA 34 20 15 42 WNA,H,ENA 34 20 15 42 WNA,H,EA 35 23 17 2 H,EA,ENA 3D 13 15 58 A,H 34 23 16 46 WNA,H,EA 74 25 17 50 ME,ENA,E,SAM D4 13 16 14 A,H 35 23 17 2 WNA,H,EA 34 13 18 6 H,EA D5 13 16 30 A,H 74 25 17 50 WNA,ME,E,SAM 35 13 18 22 H,EA,ENA 34 23 16 46 WNA,H,ENA 35 13 18 22 WNA,H,EA D4 13 18 38 H,EA,ENA 35 23 17 2 WNA,H,ENA D4 13 18 38 WNA,H,EA 74 16 19 26 ME,ENA,E 34 13 18 6 WNA,H 74 16 19 26 WNA,ME,E 34 27 19 42 H,EA 35 13 18 22 WNA,H,ENA 35 27 19 58 WNA,H,EA 35 27 19 58 H,EA,ENA D4 13 18 38 WNA,H,ENA 18 03 20 14 WNA,E,SAM 18 03 20 14 ENA,E,SAM 3C 04 18 54 A,H 19 03 20 30 WNA,E,SAM 19 03 20 30 ENA,E,SAM 3D 04 19 10 A,H 74 03 21 14 WNA,ME,E 74 03 21 14 ME,ENA,E 34 27 19 42 WNA,H D5 13 21 30 WNA,H,SAM D5 13 21 30 H,ENA,SAM 35 27 19 58 WNA,H,ENA D6 13 21 46 WNA,H,SAM D6 13 21 46 H,ENA,SAM 3C 24 20 14 A,H 74 19 22 34 WNA,ME,E 74 19 22 34 ME,ENA,E AC 17 20 46 I,A,H 75 19 22 50 WNA,ME,E 75 19 22 50 ME,ENA,E AC 09 22 18 I,A 34 28 23 22 WNA,H 34 28 23 22 H,ENA A0 22 23 54 ME,I,E GPS Schedule no 43 (28 September 2004) *** Hawaii *** *** Australia *** *** India *** Class PRN Start Connects Class PRN Start Connects Class PRN Start Connects h m h m h m 38 09 0 30 I AC 21 0 14 I,EA AC 21 0 14 A,EA 34 07 0 46 WNA,ENA CC 16 2 6 SAF 38 09 0 30 H 34 09 1 34 WNA,EA AC 22 2 38 I,EA A0 14 0 46 ME,EA,E 34 04 1 50 WNA,ENA,SAM CC 15 2 54 SAF F1 14 1 2 I 35 04 2 6 WNA,ENA,SAM CD 15 3 10 SAF BC 01 1 34 SAF,ME,E D4 04 2 22 WNA,ENA,SAM A4 16 3 26 SAF,I A1 14 1 50 ME,EA,E 34 05 3 26 WNA,EA,ENA CC 03 3 58 SAF BD 01 2 22 SAF,ME,E 34 30 4 30 WNA,EA CD 03 4 30 SAF AC 22 2 38 A,EA 35 30 4 46 WNA,EA D4 03 4 46 SAF A4 16 3 26 SAF,A 34 17 5 18 WNA,ENA CC 19 5 2 SAF A0 01 3 42 ME,EA,E 3C 21 5 34 A CD 19 5 18 SAF A1 01 3 58 ME,EA,E 34 06 6 6 WNA,EA 3C 21 5 34 H A2 01 4 14 ME,EA,E 35 06 7 26 WNA,ENA D4 19 5 50 SAF BC 20 5 34 SAF,ME,E 34 21 7 58 WNA,EA,ENA D5 19 6 6 SAF A0 23 5 50 ME,EA,E 34 18 9 50 WNA,ENA AC 03 6 54 I,EA A1 23 6 22 ME,EA,E 3C 16 11 10 A AC 01 7 10 I,EA AC 03 6 54 A,EA 38 11 12 14 I CC 11 7 42 SAF AC 01 7 10 A,EA 3C 20 12 30 A,EA CC 20 8 46 SAF A0 13 7 26 ME,EA,E 34 15 12 46 WNA,ENA,SAM CD 20 9 2 SAF A1 13 7 42 ME,EA,E 35 15 13 2 WNA,ENA,SAM AC 11 10 38 I,EA A0 27 9 2 ME,EA,E 3D 20 13 18 A,EA A4 13 10 54 SAF,I BC 13 9 18 SAF,ME,EA 3C 23 13 50 A 3C 16 11 10 H A1 27 9 50 ME,EA,E 34 25 14 22 WNA,ENA CC 13 11 42 SAF A0 08 10 6 ME,EA,E 35 25 14 38 WNA,ENA 3C 20 12 30 H,EA A1 08 10 22 ME,EA,E 38 31 15 10 I AC 27 12 46 I AC 11 10 38 A,EA 3C 13 15 26 A,EA 3D 20 13 18 H,EA A4 13 10 54 SAF,A 34 20 15 42 WNA,EA,ENA 3C 23 13 50 H BC 07 11 10 SAF,ME,E 3D 13 15 58 A,EA AC 28 14 38 I,EA BD 07 11 26 SAF,ME,E D4 13 16 14 A,EA 3C 13 15 26 H,EA A0 28 11 58 ME,EA,E D5 13 16 30 A,EA 3D 13 15 58 H,EA 38 11 12 14 H 34 23 16 46 WNA,EA,ENA D4 13 16 14 H,EA BC 29 12 30 SAF,ME,E 35 23 17 2 WNA,EA,ENA D5 13 16 30 H,EA AC 27 12 46 A 3C 27 17 18 A CC 29 16 46 SAF BC 26 13 2 SAF,ME,E 34 13 18 6 WNA,EA CC 26 17 2 SAF BD 04 13 34 SAF,ME,EA 35 13 18 22 WNA,EA,ENA 3C 27 17 18 H AC 28 14 38 A,EA D4 13 18 38 WNA,EA,ENA CD 26 17 34 SAF 38 31 15 10 H 3C 04 18 54 A,EA D4 26 17 50 SAF BC 09 15 42 SAF,ME,E 3D 04 19 10 A,EA 3C 04 18 54 H,EA BC 17 16 30 SAF,ME,E 34 27 19 42 WNA,EA 3D 04 19 10 H,EA BC 30 18 22 SAF,ME,E 35 27 19 58 WNA,EA,ENA CC 09 19 26 SAF BD 30 18 38 SAF,ME,E 3C 24 20 14 A,EA AC 26 19 42 I D4 30 19 10 SAF,ME,E 38 17 20 30 I 3C 24 20 14 H,EA AC 26 19 42 A AC 17 20 46 I,A,EA CC 05 20 30 SAF 38 17 20 30 H D5 13 21 30 WNA,ENA,SAM AC 17 20 46 I,H,EA AC 17 20 46 A,H,EA D6 13 21 46 WNA,ENA,SAM AC 09 22 18 I,EA BC 22 21 46 SAF,ME,E 3C 10 22 50 A 3C 10 22 50 H AC 09 22 18 A,EA 3D 10 23 6 A 3D 10 23 6 H BC 14 23 6 SAF,ME 34 28 23 22 WNA,ENA CC 06 23 38 SAF A0 22 23 54 ME,EA,E GPS Schedule no 43 (28 September 2004) *** Middle East *** *** South Africa *** *** South America *** Class PRN Start Connects Class PRN Start Connects Class PRN Start Connects h m h m h m 74 11 0 30 WNA,ENA,E,SAM BC 01 1 34 ME,I,E 18 11 0 14 WNA,ENA,E A0 14 0 46 I,EA,E CC 16 2 6 A 74 11 0 30 WNA,ME,ENA,E BC 01 1 34 SAF,I,E BD 01 2 22 ME,I,E F8 20 0 46 SAM A1 14 1 50 I,EA,E BC 23 2 38 ME,SAM F8 08 1 2 SAM BD 01 2 22 SAF,I,E CC 15 2 54 A 18 28 1 18 WNA,ENA,E BC 23 2 38 SAF,SAM CD 15 3 10 A FB 08 1 34 SAM A0 01 3 42 I,EA,E A4 16 3 26 I,A 34 04 1 50 WNA,H,ENA A1 01 3 58 I,EA,E CC 03 3 58 A 35 04 2 6 WNA,H,ENA A2 01 4 14 I,EA,E CD 03 4 30 A D4 04 2 22 WNA,H,ENA 74 04 5 2 WNA,ENA,E D4 03 4 46 A BC 23 2 38 SAF,ME BC 20 5 34 SAF,I,E CC 19 5 2 A F8 13 2 54 SAM A0 23 5 50 I,EA,E CD 19 5 18 A 18 07 3 10 WNA,ENA,E A1 23 6 22 I,EA,E BC 20 5 34 ME,I,E FB 13 3 26 SAM 74 24 6 38 WNA,ENA,E,SAM D4 19 5 50 A FC 13 3 42 SAM BC 04 6 54 SAF,SAM D5 19 6 6 A F8 28 3 58 SAM BC 08 7 10 SAF,SAM CA 31 6 22 SAM 68 07 4 14 ENA A0 13 7 26 I,EA,E BC 04 6 54 ME,SAM 69 07 4 30 ENA A1 13 7 42 I,EA,E BC 08 7 10 ME,SAM F8 07 4 46 SAM A0 27 9 2 I,EA,E CC 11 7 42 A FB 07 5 2 SAM BC 13 9 18 SAF,I,EA CC 20 8 46 A FC 07 5 18 SAM A1 27 9 50 I,EA,E CD 20 9 2 A FD 07 5 34 SAM A0 08 10 6 I,EA,E BC 13 9 18 ME,I,EA CA 31 6 22 SAF A1 08 10 22 I,EA,E A4 13 10 54 I,A 74 24 6 38 WNA,ME,ENA,E BC 07 11 10 SAF,I,E BC 07 11 10 ME,I,E BC 04 6 54 SAF,ME BD 07 11 26 SAF,I,E BD 07 11 26 ME,I,E BC 08 7 10 SAF,ME A0 28 11 58 I,EA,E CC 13 11 42 A 68 26 7 42 ENA 74 09 12 14 WNA,ENA,E,SAM BC 29 12 30 ME,I,E 18 17 8 14 WNA,ENA,E BC 29 12 30 SAF,I,E BC 26 13 2 ME,I,E 18 29 8 46 WNA,ENA,E BC 26 13 2 SAF,I,E BD 04 13 34 ME,I,EA 18 26 9 18 WNA,ENA,E BD 04 13 34 SAF,I,EA BC 09 15 42 ME,I,E 19 26 9 34 WNA,ENA,E BC 09 15 42 SAF,I,E BC 06 15 58 ME,SAM 68 09 10 38 ENA BC 06 15 58 SAF,SAM BD 06 16 14 ME,SAM 69 09 10 54 ENA BD 06 16 14 SAF,SAM BC 17 16 30 ME,I,E 6A 09 11 10 ENA BC 17 16 30 SAF,I,E CC 29 16 46 A 74 09 12 14 WNA,ME,ENA,E BC 21 17 18 SAF,SAM CC 26 17 2 A 34 15 12 46 WNA,H,ENA 74 25 17 50 WNA,ENA,E,SAM BC 21 17 18 ME,SAM 35 15 13 2 WNA,H,ENA BC 30 18 22 SAF,I,E CD 26 17 34 A 18 14 15 10 WNA,ENA,E BD 30 18 38 SAF,I,E D4 26 17 50 A 19 14 15 26 WNA,ENA,E D4 30 19 10 SAF,I,E BC 30 18 22 ME,I,E BC 06 15 58 SAF,ME 74 16 19 26 WNA,ENA,E BD 30 18 38 ME,I,E BD 06 16 14 SAF,ME 74 03 21 14 WNA,ENA,E D4 30 19 10 ME,I,E BC 21 17 18 SAF,ME BC 22 21 46 SAF,I,E CC 09 19 26 A 74 25 17 50 WNA,ME,ENA,E BC 16 22 2 SAF,SAM CC 05 20 30 A 18 03 20 14 WNA,ENA,E BD 16 22 18 SAF,SAM BC 22 21 46 ME,I,E 19 03 20 30 WNA,ENA,E 74 19 22 34 WNA,ENA,E BC 16 22 2 ME,SAM D5 13 21 30 WNA,H,ENA 75 19 22 50 WNA,ENA,E BD 16 22 18 ME,SAM D6 13 21 46 WNA,H,ENA BC 14 23 6 SAF,I BC 14 23 6 ME,I BC 16 22 2 SAF,ME A0 22 23 54 I,EA,E CC 06 23 38 A BD 16 22 18 SAF,ME