23 September 2005 FA/GPSW.395 Dear Colleagues, Please find enclosed tracking schedule No. 45 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 53642 (29 September 2005) 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 ‘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 00h06 should be entered in the AOA receivers at 00h04. 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 In the future, when all single-channel receivers are withdrawn from operation, the use of a fixed reference date for multi-channel receivers will allow us to cease publication of this common-view schedule. ***************************************************************************** * GPS Schedule no 45 * * for implementation on MJD 53642 (29 September 2005) 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*, MIKE, 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 17, 2004); 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. MIKE: Center for Metrology and Accreditation, Finland. RIRT: Russian Institute of Radionavigation and Time, Saint Petersburg. RAAI: Romanian Academy Astronomical Institute, Bucarest. 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 45 (29 September 2005) *** Europe *** Class PRN Start Connects h m A0 14 0 2 ME,I,EA BC 01 0 18 SAF,ME,I BD 01 0 34 SAF,ME,I 18 24 0 50 WNA,ENA,SAM A1 14 1 6 ME,I,EA A0 01 1 38 ME,I,EA A1 01 1 54 ME,I,EA 74 24 2 10 WNA,ME,ENA A2 01 2 26 ME,I,EA 18 07 2 42 WNA,ENA,SAM BC 11 2 58 SAF,ME,I 74 04 3 46 WNA,ME,ENA BC 20 4 34 SAF,ME,I A0 23 5 6 ME,I,EA A1 23 5 22 ME,I,EA A2 23 5 38 ME,I,EA A0 13 6 26 ME,I,EA A1 13 6 42 ME,I,EA 74 10 6 58 WNA,ME,ENA 18 29 7 14 WNA,ENA,SAM 19 29 7 30 WNA,ENA,SAM 18 26 8 2 WNA,ENA,SAM A0 27 8 18 ME,I,EA 74 29 8 34 WNA,ME,ENA 74 26 9 6 WNA,ME,ENA BC 07 10 10 SAF,ME,I A0 28 10 42 ME,I,EA BD 07 10 58 SAF,ME,I 18 18 11 30 WNA,ENA,SAM 18 14 14 26 WNA,ENA,SAM BC 09 14 42 SAF,ME,I 18 01 15 30 WNA,ENA,SAM A0 02 15 46 ME,I,EA 18 16 17 22 WNA,ENA,SAM BC 30 17 38 SAF,ME,I BD 30 18 10 SAF,ME,I 74 16 18 26 WNA,ME,ENA 18 03 18 58 WNA,ENA,SAM 19 03 19 14 WNA,ENA,SAM 1A 03 19 30 WNA,ENA,SAM 74 03 20 2 WNA,ME,ENA BC 22 20 46 SAF,ME,I A0 18 21 18 ME,I,EA 74 19 21 34 WNA,ME,ENA 18 11 22 38 WNA,ENA,SAM A0 22 22 54 ME,I,EA BC 03 23 10 SAF,ME,I GPS Schedule no 45 (29 September 2005) *** 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 24 0 50 WNA,E,SAM 34 09 0 34 H,EA A0 14 0 2 ME,I,E 34 04 1 6 WNA,H,SAM 18 24 0 50 ENA,E,SAM 34 09 0 34 WNA,H 35 04 1 22 WNA,H,SAM 34 04 1 6 H,ENA,SAM AC 18 0 50 I,A 68 28 1 38 SAM 35 04 1 22 H,ENA,SAM A1 14 1 6 ME,I,E 74 24 2 10 WNA,ME,E 74 24 2 10 ME,ENA,E BC 25 1 22 SAF,ME,I 18 07 2 42 WNA,E,SAM 18 07 2 42 ENA,E,SAM A0 01 1 38 ME,I,E 60 13 3 30 ME,SAM 34 30 3 30 H,EA A1 01 1 54 ME,I,E 74 04 3 46 WNA,ME,E 74 04 3 46 ME,ENA,E A2 01 2 26 ME,I,E 35 30 4 2 WNA,H,EA 35 30 4 2 H,EA,ENA 3C 06 2 58 A,H 35 06 5 54 WNA,H 34 06 4 50 H,EA 34 30 3 30 WNA,H D4 06 6 26 WNA,H 35 06 5 54 H,ENA 35 30 4 2 WNA,H,ENA 68 26 6 42 SAM D4 06 6 26 H,ENA 34 06 4 50 WNA,H 74 10 6 58 WNA,ME,E 74 10 6 58 ME,ENA,E A0 23 5 6 ME,I,E 18 29 7 14 WNA,E,SAM 18 29 7 14 ENA,E,SAM A1 23 5 22 ME,I,E 19 29 7 30 WNA,E,SAM 19 29 7 30 ENA,E,SAM A2 23 5 38 ME,I,E 18 26 8 2 WNA,E,SAM 34 15 7 46 H,EA AC 03 5 54 I,A D5 06 8 18 WNA,H,SAM 18 26 8 2 ENA,E,SAM 3C 25 6 10 A,H 74 29 8 34 WNA,ME,E D5 06 8 18 H,ENA,SAM A0 13 6 26 ME,I,E 34 18 8 50 WNA,H 74 29 8 34 ME,ENA,E A1 13 6 42 ME,I,E 74 26 9 6 WNA,ME,E 34 18 8 50 H,ENA 34 15 7 46 WNA,H 68 09 9 54 SAM 74 26 9 6 ME,ENA,E A0 27 8 18 ME,I,E 69 09 10 10 SAM 34 03 9 38 H,EA AC 11 9 6 I,A 68 21 10 26 SAM 35 15 10 42 H,ENA,SAM 34 03 9 38 WNA,H 35 15 10 42 WNA,H,SAM 18 18 11 30 ENA,E,SAM A0 28 10 42 ME,I,E 18 18 11 30 WNA,E,SAM 34 14 11 46 H,ENA 3C 20 12 2 A,H 34 14 11 46 WNA,H 34 11 13 22 H,EA BC 04 12 34 SAF,ME,I 68 18 12 2 SAM 34 25 13 38 H,ENA 34 11 13 22 WNA,H 34 25 13 38 WNA,H 18 14 14 26 ENA,E,SAM AC 28 13 38 I,A 18 14 14 26 WNA,E,SAM 34 20 14 42 H,EA,ENA 3D 23 14 10 A,H 34 20 14 42 WNA,H,EA 35 20 14 58 H,EA,ENA 3C 13 14 26 A,H 35 20 14 58 WNA,H,EA 18 01 15 30 ENA,E,SAM 34 20 14 42 WNA,H,ENA 18 01 15 30 WNA,E,SAM 34 23 16 2 H,EA,ENA 35 20 14 58 WNA,H,ENA 34 23 16 2 WNA,H,EA 35 23 16 18 H,EA,ENA 3D 13 15 14 A,H 35 23 16 18 WNA,H,EA 34 13 17 6 H,EA AC 07 15 30 I,A 18 16 17 22 WNA,E,SAM 18 16 17 22 ENA,E,SAM A0 02 15 46 ME,I,E 35 13 17 38 WNA,H,EA 35 13 17 38 H,EA,ENA 34 23 16 2 WNA,H,ENA 74 16 18 26 WNA,ME,E 74 16 18 26 ME,ENA,E 35 23 16 18 WNA,H,ENA 34 27 18 42 WNA,H,EA 34 27 18 42 H,EA,ENA 34 13 17 6 WNA,H 18 03 18 58 WNA,E,SAM 18 03 18 58 ENA,E,SAM 35 13 17 38 WNA,H,ENA 19 03 19 14 WNA,E,SAM 19 03 19 14 ENA,E,SAM 3C 04 17 54 A,H 1A 03 19 30 WNA,E,SAM 1A 03 19 30 ENA,E,SAM 3C 08 18 10 A,H 74 03 20 2 WNA,ME,E 74 03 20 2 ME,ENA,E 34 27 18 42 WNA,H,ENA 34 08 20 18 WNA,H,EA 34 08 20 18 H,EA,ENA 3C 02 19 14 A,H D4 13 20 46 WNA,H,SAM D4 13 20 46 H,ENA,SAM 3D 02 19 30 A,H 74 19 21 34 WNA,ME,E 74 19 21 34 ME,ENA,E 34 08 20 18 WNA,H,ENA 34 28 22 6 WNA,H 34 28 22 6 H,ENA A0 18 21 18 ME,I,E 18 11 22 38 WNA,E,SAM 18 11 22 38 ENA,E,SAM AC 09 21 50 I,A 34 07 23 42 WNA,H 34 07 23 42 H,ENA A0 22 22 54 ME,I,E GPS Schedule no 45 (29 September 2005) *** Hawaii *** *** Australia *** *** India *** Class PRN Start Connects Class PRN Start Connects Class PRN Start Connects h m h m h m 34 09 0 34 WNA,EA AC 18 0 50 I,EA A0 14 0 2 ME,EA,E 34 04 1 6 WNA,ENA,SAM CC 16 1 6 SAF BC 01 0 18 SAF,ME,E 35 04 1 22 WNA,ENA,SAM CD 16 1 38 SAF BD 01 0 34 SAF,ME,E 38 30 2 10 I D4 16 1 54 SAF AC 18 0 50 A,EA 3C 06 2 58 A,EA D5 16 2 10 SAF A1 14 1 6 ME,EA,E 34 30 3 30 WNA,EA D6 16 2 26 SAF BC 25 1 22 SAF,ME,EA 35 30 4 2 WNA,EA,ENA A4 16 2 42 SAF,I A0 01 1 38 ME,EA,E 3C 21 4 18 A 3C 06 2 58 H,EA A1 01 1 54 ME,EA,E 34 06 4 50 WNA,EA CC 03 3 30 SAF 38 30 2 10 H 3C 15 5 22 A CD 03 3 46 SAF A2 01 2 26 ME,EA,E 35 06 5 54 WNA,ENA 3C 21 4 18 H A4 16 2 42 SAF,A 3C 25 6 10 A,EA CC 19 4 50 SAF BC 11 2 58 SAF,ME,E D4 06 6 26 WNA,ENA CD 19 5 6 SAF BC 20 4 34 SAF,ME,E 34 15 7 46 WNA,EA 3C 15 5 22 H A0 23 5 6 ME,EA,E D5 06 8 18 WNA,ENA,SAM AC 03 5 54 I,EA A1 23 5 22 ME,EA,E 34 18 8 50 WNA,ENA 3C 25 6 10 H,EA A2 23 5 38 ME,EA,E 34 03 9 38 WNA,EA CC 11 6 26 SAF AC 03 5 54 A,EA 3C 16 9 54 A CD 11 6 42 SAF A0 13 6 26 ME,EA,E 3D 16 10 10 A CC 20 7 46 SAF A1 13 6 42 ME,EA,E 35 15 10 42 WNA,ENA,SAM CD 20 8 18 SAF A0 27 8 18 ME,EA,E 38 11 11 30 I A4 23 8 34 SAF,I A4 23 8 34 SAF,A 34 14 11 46 WNA,ENA CC 24 8 50 SAF AC 11 9 6 A,EA 3C 20 12 2 A,EA AC 11 9 6 I,EA AD 11 9 38 A 3C 23 13 6 A AD 11 9 38 I BC 07 10 10 SAF,ME,E 34 11 13 22 WNA,EA 3C 16 9 54 H A0 28 10 42 ME,EA,E 34 25 13 38 WNA,ENA 3D 16 10 10 H BD 07 10 58 SAF,ME,E 3D 23 14 10 A,EA CC 13 10 42 SAF AC 27 11 14 A 3C 13 14 26 A,EA AC 27 11 14 I 38 11 11 30 H 34 20 14 42 WNA,EA,ENA 3C 20 12 2 H,EA BC 04 12 34 SAF,ME,EA 35 20 14 58 WNA,EA,ENA A4 08 12 50 SAF,I A4 08 12 50 SAF,A 3D 13 15 14 A,EA 3C 23 13 6 H AC 28 13 38 A,EA 34 23 16 2 WNA,EA,ENA AC 28 13 38 I,EA BC 09 14 42 SAF,ME,E 35 23 16 18 WNA,EA,ENA 3D 23 14 10 H,EA A4 10 14 58 SAF,A 34 13 17 6 WNA,EA 3C 13 14 26 H,EA AC 07 15 30 A,EA 35 13 17 38 WNA,EA,ENA A4 10 14 58 SAF,I A0 02 15 46 ME,EA,E 3C 04 17 54 A,EA 3D 13 15 14 H,EA BC 30 17 38 SAF,ME,E 3C 08 18 10 A,EA AC 07 15 30 I,EA BD 30 18 10 SAF,ME,E 34 27 18 42 WNA,EA,ENA CC 26 15 46 SAF 38 10 18 58 H 38 10 18 58 I CD 26 16 18 SAF BC 18 19 14 SAF,ME 3C 02 19 14 A,EA D4 26 16 34 SAF BC 22 20 46 SAF,ME,E 3D 02 19 30 A,EA 3C 04 17 54 H,EA 38 26 21 2 H 34 08 20 18 WNA,EA,ENA 3C 08 18 10 H,EA A0 18 21 18 ME,EA,E D4 13 20 46 WNA,ENA,SAM CC 09 18 26 SAF AC 09 21 50 A,EA 38 26 21 2 I 3C 02 19 14 H,EA BC 14 22 22 SAF,ME 34 28 22 6 WNA,ENA 3D 02 19 30 H,EA A0 22 22 54 ME,EA,E 3C 10 22 22 A CC 30 21 18 SAF BC 03 23 10 SAF,ME,E 38 09 23 26 I AC 09 21 50 I,EA 38 09 23 26 H 34 07 23 42 WNA,ENA 3C 10 22 22 H GPS Schedule no 45 (29 September 2005) *** 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 14 0 2 I,EA,E BC 01 0 18 ME,I,E F8 20 0 2 SAM BC 01 0 18 SAF,I,E BD 01 0 34 ME,I,E FB 20 0 18 SAM BD 01 0 34 SAF,I,E CC 16 1 6 A F8 08 0 34 SAM A1 14 1 6 I,EA,E BC 25 1 22 ME,I,EA 18 24 0 50 WNA,ENA,E BC 25 1 22 SAF,I,EA CD 16 1 38 A 34 04 1 6 WNA,H,ENA A0 01 1 38 I,EA,E D4 16 1 54 A 35 04 1 22 WNA,H,ENA A1 01 1 54 I,EA,E D5 16 2 10 A 68 28 1 38 ENA 74 24 2 10 WNA,ENA,E D6 16 2 26 A F8 13 1 54 SAM A2 01 2 26 I,EA,E A4 16 2 42 I,A FB 13 2 10 SAM BC 11 2 58 SAF,I,E BC 11 2 58 ME,I,E FC 13 2 26 SAM BC 13 3 14 SAF,SAM BC 13 3 14 ME,SAM 18 07 2 42 WNA,ENA,E 60 13 3 30 ENA,SAM CC 03 3 30 A F8 28 2 58 SAM 74 04 3 46 WNA,ENA,E CD 03 3 46 A BC 13 3 14 SAF,ME BC 27 4 2 SAF,SAM BC 27 4 2 ME,SAM 60 13 3 30 ME,ENA BD 27 4 18 SAF,SAM BD 27 4 18 ME,SAM F8 07 3 46 SAM BC 20 4 34 SAF,I,E BC 20 4 34 ME,I,E BC 27 4 2 SAF,ME A0 23 5 6 I,EA,E CC 19 4 50 A BD 27 4 18 SAF,ME A1 23 5 22 I,EA,E CD 19 5 6 A FB 07 4 34 SAM A2 23 5 38 I,EA,E BC 08 6 10 ME,SAM FC 07 4 50 SAM BC 08 6 10 SAF,SAM CC 11 6 26 A FD 07 5 6 SAM A0 13 6 26 I,EA,E CD 11 6 42 A FE 07 5 22 SAM A1 13 6 42 I,EA,E CC 20 7 46 A FE 07 5 38 SAM 74 10 6 58 WNA,ENA,E CD 20 8 18 A FE 07 5 54 SAM A0 27 8 18 I,EA,E A4 23 8 34 I,A BC 08 6 10 SAF,ME 74 29 8 34 WNA,ENA,E CC 24 8 50 A F8 26 6 26 SAM 74 26 9 6 WNA,ENA,E BC 10 9 38 ME,SAM 68 26 6 42 ENA BC 10 9 38 SAF,SAM BC 07 10 10 ME,I,E 18 29 7 14 WNA,ENA,E BC 07 10 10 SAF,I,E CC 13 10 42 A 19 29 7 30 WNA,ENA,E A0 28 10 42 I,EA,E BD 07 10 58 ME,I,E 18 26 8 2 WNA,ENA,E BD 07 10 58 SAF,I,E BC 04 12 34 ME,I,EA D5 06 8 18 WNA,H,ENA BC 04 12 34 SAF,I,EA A4 08 12 50 I,A BC 10 9 38 SAF,ME BC 09 14 42 SAF,I,E BC 09 14 42 ME,I,E 68 09 9 54 ENA A0 02 15 46 I,EA,E A4 10 14 58 I,A 69 09 10 10 ENA BC 30 17 38 SAF,I,E CC 26 15 46 A 68 21 10 26 ENA BC 15 17 54 SAF,SAM CD 26 16 18 A 35 15 10 42 WNA,H,ENA BD 30 18 10 SAF,I,E D4 26 16 34 A 18 18 11 30 WNA,ENA,E 74 16 18 26 WNA,ENA,E BC 30 17 38 ME,I,E 68 18 12 2 ENA BC 18 19 14 SAF,I BC 15 17 54 ME,SAM 18 14 14 26 WNA,ENA,E 74 03 20 2 WNA,ENA,E BD 30 18 10 ME,I,E 18 01 15 30 WNA,ENA,E BC 22 20 46 SAF,I,E CC 09 18 26 A 18 16 17 22 WNA,ENA,E BC 16 21 2 SAF,SAM BC 18 19 14 ME,I BC 15 17 54 SAF,ME A0 18 21 18 I,EA,E BC 22 20 46 ME,I,E 18 03 18 58 WNA,ENA,E 74 19 21 34 WNA,ENA,E BC 16 21 2 ME,SAM 19 03 19 14 WNA,ENA,E BD 16 21 50 SAF,SAM CC 30 21 18 A 1A 03 19 30 WNA,ENA,E BC 14 22 22 SAF,I BD 16 21 50 ME,SAM D4 13 20 46 WNA,H,ENA A0 22 22 54 I,EA,E BC 14 22 22 ME,I BC 16 21 2 SAF,ME BC 03 23 10 SAF,I,E BC 03 23 10 ME,I,E BD 16 21 50 SAF,ME 18 11 22 38 WNA,ENA,E