26 October 2009 FA/GPSW.404 Dear Colleagues, Please find enclosed tracking schedule No. 53 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 55137 (02 November 2009) 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 frequency and gravimetry 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 In the future, when all single-channel receivers are withdrawn from operation, the use of a fixed reference date for multi-channel receivers will allow us to cease publication of this common-view schedule.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 53 * * for implementation on MJD 55137 (02 November 2009) 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, BIM, BY, CAO, CH, DLR, DMDM*, DTAG, EIM, IFAG, IPQ*, IT, JV, KZ, LT, LV, Mad*, MIKE, MKEH, NIMB, NPL, OB*, OCA*, OP, ORB, PL, PTB, RAAI*, RIRT*, ROA, SIQ, SMD, SMU, SP, SU, TP, UA, UME, VSL East North America ENA AO*, APL, NRC, NRL, USNO West North America WNA AMC*, CNM, CNMP, Gold*, NIST, WWV* Hawaii H WWVH* East Asia EA BIRM, HKO, JATC, KIM, KRIS, NAO, NICT, NIM, NIMT, NMIJ, NMLS, NTSC, SCL, SG, TL, VMI Australia and New Zealand A AUS, Can*, MSL India I NPLI Middle East ME INPL, NIS South Africa SAF ZA South America SAM IGNA*, INTI, Kou*, ONBA, ONRJ, TCC Laboratories participating in TAI are designated by their usual acronyms (see Table 3 of the BIPM Annual Report on time activities, Volume 1, 2006); other laboratories are indicated by an asterisk. * AMC : USNO Alternate Master Clock, Colorado. AO : Arecibo Observatory. DMDM : Directorate of Measures and Precious Metals, Belgrade, Serbia,formerly ZMDM IGNA : Instituto Geográfico Nacional, Buenos Aires, Argentina, formerly IGMA IPQ : Instituto Português da Qualidade, Monte de Caparica, Portugal. Kou : CNES Kourou Center. Mad, Gold, Can : JPL Deep Space Network, Madrid, Goldstone, Canberra. OCA : Observatoire de la Cote d'Azur, Grasse, France. OB : Observatoire de Besançon, Besançon, France. RIRT : Russian Institute of Radionavigation and Time, Saint Petersburg. RAAI : Romanian Academy Astronomical Institute, Bucarest. WWV, WWVH : NIST stations in Colorado and Hawaii. 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 53 ( 2 November 2009) *** Europe *** Class PRN Start Connects h m A0 13 0 6 ME,I,EA A1 13 0 22 ME,I,EA 74 10 0 38 WNA,ME,ENA A2 13 0 54 ME,I,EA 74 05 1 10 WNA,ME,ENA A0 07 1 26 ME,I,EA A1 07 1 42 ME,I,EA 19 15 1 58 WNA,ENA,SAM BD 28 2 14 SAF,ME,I BC 10 2 46 SAF,ME,SAM 74 15 3 2 WNA,ME,ENA BD 10 3 18 SAF,ME,SAM BC 05 3 50 SAF,ME,SAM A0 28 4 6 ME,I,EA A1 28 4 22 ME,I,EA A2 28 4 38 ME,I,EA 74 09 4 54 WNA,ME,ENA,SAM 18 18 5 26 WNA,ENA,SAM 19 18 5 42 WNA,ENA,SAM A0 17 5 58 ME,I,EA A1 17 6 30 ME,I,EA 74 26 6 46 WNA,ME,ENA BC 27 7 50 SAF,ME,I BC 29 8 6 SAF,ME,SAM BD 29 8 38 SAF,ME,SAM D4 29 8 54 SAF,ME,SAM BC 12 10 14 SAF,ME,I,EA 74 16 12 6 WNA,ME,ENA 18 06 12 22 WNA,ENA,SAM 74 06 13 26 WNA,ME,ENA,SAM 74 03 13 58 WNA,ME,ENA A0 21 14 14 ME,I,EA BC 16 14 46 SAF,ME,SAM 74 19 15 2 WNA,ME,ENA BC 26 15 50 SAF,ME,I,EA 18 11 16 50 WNA,ENA,SAM A0 26 17 6 ME,I,EA 74 11 17 22 WNA,ME,ENA BC 23 19 14 SAF,ME,SAM BD 23 19 46 SAF,ME,SAM 18 17 20 18 WNA,ENA,SAM BC 13 20 50 SAF,ME,SAM BD 13 21 6 SAF,ME,SAM 74 04 21 54 WNA,ME,ENA 75 04 22 10 WNA,ME,ENA A0 23 22 58 ME,I,EA 18 02 23 14 WNA,ENA,SAM 19 02 23 30 WNA,ENA,SAM GPS Schedule no 53 ( 2 November 2009) *** 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 34 29 0 6 WNA,H 34 29 0 6 H,ENA A0 13 0 6 ME,I,E 35 29 0 22 WNA,H 35 29 0 22 H,ENA A1 13 0 22 ME,I,E 74 10 0 38 WNA,ME,E 74 10 0 38 ME,ENA,E A2 13 0 54 ME,I,E 18 15 0 54 WNA,SAM 18 15 0 54 ENA,SAM A0 07 1 26 ME,I,E 74 05 1 10 WNA,ME,E 74 05 1 10 ME,ENA,E A1 07 1 42 ME,I,E D4 29 1 42 WNA,H,SAM D4 29 1 42 H,ENA,SAM 80 16 2 46 WNA,A,H 19 15 1 58 WNA,E,SAM 19 15 1 58 ENA,E,SAM AD 11 3 2 I,A 34 18 2 30 WNA,H 34 18 2 30 H,ENA AE 11 3 18 I,A 74 15 3 2 WNA,ME,E 80 16 2 46 A,H,EA 34 06 3 34 WNA,H 68 09 3 34 SAM 74 15 3 2 ME,ENA,E A0 28 4 6 ME,I,E 68 21 4 38 SAM 34 06 3 34 H,EA A1 28 4 22 ME,I,E 74 09 4 54 WNA,ME,E,SAM 74 09 4 54 ME,ENA,E,SAM A2 28 4 38 ME,I,E 18 18 5 26 WNA,E,SAM 18 18 5 26 ENA,E,SAM 3D 32 4 54 A,H 19 18 5 42 WNA,E,SAM 19 18 5 42 ENA,E,SAM D4 32 5 10 A,H 68 18 5 58 SAM 34 31 6 14 H,ENA,SAM 3C 20 5 42 A,H 34 31 6 14 WNA,H,SAM 35 31 6 30 H,ENA,SAM A0 17 5 58 ME,I,E 35 31 6 30 WNA,H,SAM 74 26 6 46 ME,ENA,E A1 17 6 30 ME,I,E 74 26 6 46 WNA,ME,E 34 32 7 2 H,EA 34 32 7 2 WNA,H 35 32 7 34 WNA,H,EA 35 32 7 34 H,EA,ENA AC 28 7 18 I,A 34 20 8 38 WNA,H,EA 34 20 8 38 H,EA,ENA 35 32 7 34 WNA,H,ENA 34 23 9 42 WNA,H,EA 34 23 9 42 H,EA,ENA 3D 13 8 22 A,H D4 32 10 46 WNA,H,SAM D4 32 10 46 H,ENA,SAM 34 20 8 38 WNA,H,ENA 34 13 11 2 WNA,H,EA 34 13 11 2 H,EA,ENA D4 13 8 54 A,H 35 13 11 18 WNA,H,EA 35 13 11 18 H,EA,ENA D5 13 9 10 A,H 74 16 12 6 WNA,ME,E 74 16 12 6 ME,ENA,E 3C 17 9 26 A,H 18 06 12 22 WNA,E,SAM 18 06 12 22 ENA,E,SAM 34 23 9 42 WNA,H,ENA 74 06 13 26 WNA,ME,E,SAM 74 06 13 26 ME,ENA,E,SAM BC 12 10 14 SAF,ME,I,E 74 03 13 58 WNA,ME,E 74 03 13 58 ME,ENA,E 34 13 11 2 WNA,H,ENA D4 13 14 14 WNA,H,SAM D4 13 14 14 H,ENA,SAM 35 13 11 18 WNA,H,ENA 74 19 15 2 WNA,ME,E 74 19 15 2 ME,ENA,E 3C 04 11 34 A,H 34 28 15 50 WNA,H 34 28 15 50 H,ENA 3D 04 11 50 A,H 18 11 16 50 WNA,E,SAM 18 11 16 50 ENA,E,SAM D4 04 12 22 A,H 34 17 17 6 WNA,H 34 17 17 6 H,ENA A0 21 14 14 ME,I,E 74 11 17 22 WNA,ME,E 74 11 17 22 ME,ENA,E AC 09 15 2 I,A 34 27 18 10 WNA,H,EA 34 27 18 10 H,EA,ENA BC 26 15 50 SAF,ME,I,E 35 27 18 26 WNA,H,EA 35 27 18 26 H,EA,ENA A0 26 17 6 ME,I,E 34 09 18 42 WNA,H,EA 34 09 18 42 H,EA,ENA 3C 12 17 22 A,H 34 04 18 58 WNA,H,SAM 34 04 18 58 H,ENA,SAM 34 27 18 10 WNA,H,ENA 34 12 20 2 WNA,H,EA 34 12 20 2 H,EA,ENA 35 27 18 26 WNA,H,ENA 18 17 20 18 WNA,E,SAM 18 17 20 18 ENA,E,SAM 34 09 18 42 WNA,H,ENA 35 12 21 6 WNA,H 35 12 21 6 H,ENA BC 31 18 58 SAF,ME,I 34 30 21 22 WNA,H,EA 34 30 21 22 H,EA,ENA AC 22 19 30 I,A 35 30 21 38 WNA,H,EA 35 30 21 38 H,EA,ENA 34 12 20 2 WNA,H,ENA 74 04 21 54 WNA,ME,E 74 04 21 54 ME,ENA,E 34 30 21 22 WNA,H,ENA 75 04 22 10 WNA,ME,E 75 04 22 10 ME,ENA,E 35 30 21 38 WNA,H,ENA D5 29 22 42 WNA,H,EA D5 29 22 42 H,EA,ENA BC 32 22 26 SAF,ME,I 18 02 23 14 WNA,E,SAM 18 02 23 14 ENA,E,SAM D5 29 22 42 WNA,H,ENA 19 02 23 30 WNA,E,SAM 19 02 23 30 ENA,E,SAM A0 23 22 58 ME,I,E GPS Schedule no 53 ( 2 November 2009) *** Hawaii *** *** Australia *** *** India *** Class PRN Start Connects Class PRN Start Connects Class PRN Start Connects h m h m h m 34 29 0 6 WNA,ENA CC 11 0 6 SAF A0 13 0 6 ME,EA,E 35 29 0 22 WNA,ENA CC 32 0 22 SAF A1 13 0 22 ME,EA,E D4 29 1 42 WNA,ENA,SAM CD 11 0 38 SAF F1 03 0 38 I 34 18 2 30 WNA,ENA CD 32 0 54 SAF A2 13 0 54 ME,EA,E 80 16 2 46 WNA,A,EA AC 11 2 30 I F2 03 1 10 I 34 06 3 34 WNA,EA 80 16 2 46 WNA,H,EA A0 07 1 26 ME,EA,E 3C 32 4 38 A AD 11 3 2 I,EA A1 07 1 42 ME,EA,E 3D 32 4 54 A,EA AE 11 3 18 I,EA BC 28 1 58 SAF,ME D4 32 5 10 A,EA A4 13 3 34 SAF,I BD 28 2 14 SAF,ME,E 38 11 5 26 I AC 25 3 50 I AC 11 2 30 A 3C 20 5 42 A,EA CC 13 4 6 SAF F1 07 2 46 I 34 31 6 14 WNA,ENA,SAM CD 13 4 22 SAF AD 11 3 2 A,EA 35 31 6 30 WNA,ENA,SAM 3C 32 4 38 H AE 11 3 18 A,EA 3C 23 6 46 A 3D 32 4 54 H,EA A4 13 3 34 SAF,A 34 32 7 2 WNA,EA D4 32 5 10 H,EA AC 25 3 50 A 35 32 7 34 WNA,EA,ENA 3C 20 5 42 H,EA A0 28 4 6 ME,EA,E 3C 13 8 6 A 3C 23 6 46 H A1 28 4 22 ME,EA,E 3D 13 8 22 A,EA AC 28 7 18 I,EA A2 28 4 38 ME,EA,E 34 20 8 38 WNA,EA,ENA CC 10 7 34 SAF F1 17 4 54 I D4 13 8 54 A,EA 3C 13 8 6 H F2 17 5 10 I D5 13 9 10 A,EA 3D 13 8 22 H,EA 38 11 5 26 H 3C 17 9 26 A,EA D4 13 8 54 H,EA FB 17 5 42 I 34 23 9 42 WNA,EA,ENA D5 13 9 10 H,EA A0 17 5 58 ME,EA,E 38 04 9 58 I 3C 17 9 26 H,EA A1 17 6 30 ME,EA,E D4 32 10 46 WNA,ENA,SAM CC 15 9 42 SAF AC 28 7 18 A,EA 34 13 11 2 WNA,EA,ENA CD 15 9 58 SAF BC 27 7 50 SAF,ME,E 35 13 11 18 WNA,EA,ENA CC 27 11 2 SAF BC 09 8 22 SAF,ME 3C 04 11 34 A,EA 3C 04 11 34 H,EA 38 04 9 58 H 3D 04 11 50 A,EA 3D 04 11 50 H,EA BC 12 10 14 SAF,ME,EA,E D4 04 12 22 A,EA CC 09 12 6 SAF BC 30 11 18 SAF,ME 38 10 12 38 I D4 04 12 22 H,EA BD 30 11 50 SAF,ME 38 05 13 10 I CC 12 13 26 SAF 38 10 12 38 H D4 13 14 14 WNA,ENA,SAM CC 30 14 30 SAF BC 18 12 54 SAF,ME 3C 05 15 34 A AC 09 15 2 I,EA 38 05 13 10 H 34 28 15 50 WNA,ENA A4 29 15 18 SAF,I A0 21 14 14 ME,EA,E 3D 05 16 22 A 3C 05 15 34 H AC 09 15 2 A,EA 34 17 17 6 WNA,ENA CC 29 16 6 SAF A4 29 15 18 SAF,A 3C 12 17 22 A,EA 3D 05 16 22 H BC 26 15 50 SAF,ME,EA,E 34 27 18 10 WNA,EA,ENA 3C 12 17 22 H,EA A0 26 17 6 ME,EA,E 35 27 18 26 WNA,EA,ENA AC 21 17 38 I AC 21 17 38 A 34 09 18 42 WNA,EA,ENA AC 18 18 26 I AC 18 18 26 A 34 04 18 58 WNA,ENA,SAM AC 22 19 30 I,EA BC 31 18 58 SAF,ME,EA 34 12 20 2 WNA,EA,ENA A4 16 20 2 SAF,I AC 22 19 30 A,EA 38 14 20 34 I CC 06 20 18 SAF A4 16 20 2 SAF,A 35 12 21 6 WNA,ENA CC 03 21 22 SAF 38 14 20 34 H 34 30 21 22 WNA,EA,ENA CD 03 21 38 SAF BC 32 22 26 SAF,ME,EA 35 30 21 38 WNA,EA,ENA CC 19 21 54 SAF A0 23 22 58 ME,EA,E D5 29 22 42 WNA,EA,ENA AC 06 23 14 I AC 06 23 14 A GPS Schedule no 53 ( 2 November 2009) *** 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 13 0 6 I,EA,E CC 11 0 6 A F8 15 0 6 SAM A1 13 0 22 I,EA,E CC 32 0 22 A F8 02 0 22 SAM 74 10 0 38 WNA,ENA,E CD 11 0 38 A FB 02 0 38 SAM A2 13 0 54 I,EA,E CD 32 0 54 A 18 15 0 54 WNA,ENA 74 05 1 10 WNA,ENA,E CA 04 1 10 SAM CA 04 1 10 SAF A0 07 1 26 I,EA,E BC 28 1 58 ME,I FC 02 1 26 SAM A1 07 1 42 I,EA,E BD 28 2 14 ME,I,E D4 29 1 42 WNA,H,ENA BC 28 1 58 SAF,I BC 10 2 46 ME,E,SAM 19 15 1 58 WNA,ENA,E BD 28 2 14 SAF,I,E BD 10 3 18 ME,E,SAM FD 02 2 14 SAM BC 10 2 46 SAF,E,SAM A4 13 3 34 I,A FE 02 2 30 SAM 74 15 3 2 WNA,ENA,E BC 05 3 50 ME,E,SAM BC 10 2 46 SAF,ME,E BD 10 3 18 SAF,E,SAM CC 13 4 6 A F8 09 3 2 SAM BC 05 3 50 SAF,E,SAM CD 13 4 22 A BD 10 3 18 SAF,ME,E A0 28 4 6 I,EA,E CA 29 7 2 SAM 68 09 3 34 ENA A1 28 4 22 I,EA,E CB 29 7 18 SAM BC 05 3 50 SAF,ME,E A2 28 4 38 I,EA,E CC 10 7 34 A F8 12 4 6 SAM 74 09 4 54 WNA,ENA,E,SAM BC 27 7 50 ME,I,E FB 12 4 22 SAM A0 17 5 58 I,EA,E BC 29 8 6 ME,E,SAM 68 21 4 38 ENA A1 17 6 30 I,EA,E BC 09 8 22 ME,I 74 09 4 54 WNA,ME,ENA,E 74 26 6 46 WNA,ENA,E BD 29 8 38 ME,E,SAM FC 12 5 10 SAM BC 27 7 50 SAF,I,E D4 29 8 54 ME,E,SAM 18 18 5 26 WNA,ENA,E BC 29 8 6 SAF,E,SAM CC 15 9 42 A 19 18 5 42 WNA,ENA,E BC 09 8 22 SAF,I CD 15 9 58 A 68 18 5 58 ENA BD 29 8 38 SAF,E,SAM BC 12 10 14 ME,I,EA,E 34 31 6 14 WNA,H,ENA D4 29 8 54 SAF,E,SAM CC 27 11 2 A 35 31 6 30 WNA,H,ENA BC 12 10 14 SAF,I,EA,E BC 30 11 18 ME,I F8 18 6 46 SAM BC 30 11 18 SAF,I BD 30 11 50 ME,I CA 29 7 2 SAF BD 30 11 50 SAF,I CC 09 12 6 A CB 29 7 18 SAF 74 16 12 6 WNA,ENA,E BC 18 12 54 ME,I FB 18 7 34 SAM BC 18 12 54 SAF,I CC 12 13 26 A BC 29 8 6 SAF,ME,E 74 06 13 26 WNA,ENA,E,SAM CA 31 13 42 SAM BD 29 8 38 SAF,ME,E 74 03 13 58 WNA,ENA,E CC 30 14 30 A D4 29 8 54 SAF,ME,E A0 21 14 14 I,EA,E BC 16 14 46 ME,E,SAM D4 32 10 46 WNA,H,ENA BC 16 14 46 SAF,E,SAM A4 29 15 18 I,A 18 06 12 22 WNA,ENA,E 74 19 15 2 WNA,ENA,E BD 16 15 34 ME,SAM 74 06 13 26 WNA,ME,ENA,E BD 16 15 34 SAF,SAM BC 26 15 50 ME,I,EA,E CA 31 13 42 SAF BC 26 15 50 SAF,I,EA,E CC 29 16 6 A D4 13 14 14 WNA,H,ENA A0 26 17 6 I,EA,E BC 31 18 58 ME,I,EA BC 16 14 46 SAF,ME,E 74 11 17 22 WNA,ENA,E BC 23 19 14 ME,E,SAM BD 16 15 34 SAF,ME BC 31 18 58 SAF,I,EA BD 23 19 46 ME,E,SAM 18 11 16 50 WNA,ENA,E BC 23 19 14 SAF,E,SAM A4 16 20 2 I,A 34 04 18 58 WNA,H,ENA BD 23 19 46 SAF,E,SAM CC 06 20 18 A BC 23 19 14 SAF,ME,E BC 13 20 50 SAF,E,SAM BC 13 20 50 ME,E,SAM BD 23 19 46 SAF,ME,E BD 13 21 6 SAF,E,SAM BD 13 21 6 ME,E,SAM 18 17 20 18 WNA,ENA,E 74 04 21 54 WNA,ENA,E CC 03 21 22 A BC 13 20 50 SAF,ME,E 75 04 22 10 WNA,ENA,E CD 03 21 38 A BD 13 21 6 SAF,ME,E BC 32 22 26 SAF,I,EA CC 19 21 54 A 18 02 23 14 WNA,ENA,E A0 23 22 58 I,EA,E BC 32 22 26 ME,I,EA 19 02 23 30 WNA,ENA,E