23 April 2013 FA/GPSW.411 Dear Colleagues, Please find enclosed tracking schedule No. 60 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 56412 (30 April 2013) 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 Director, BIPM Time Department 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 In the future, when all single-channel receivers are withdrawn from operation, the use of a fixed reference date for multi-channel receivers will allow us to cease publication of this common-view schedule.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 60 * * for implementation on MJD 56412 (30 April 2013) 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, ESTC*, IFAG, IPQ, IT, JV, KZ, LT, 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, MTC*, NIS South Africa SAF KEBS*, ZA South America SAM IGNA, INTI, INXE*, 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 6, 2011, available in the BIPM web site); other laboratories are indicated by an asterisk. * AMC : USNO Alternate Master Clock, Colorado. AO : Arecibo Observatory. ESTC : European Space Research and Technology Centre, Noordwijk, The Netherlands. INXE : INMETRO - National Institute for Metrology and Technology - Time and Frequency Laboratory, Rio de Janeiro, Brazil. KEBS : Kenya Bureau of Standards, Nairobi, Kenya. Kou : CNES Kourou Center. Mad, Gold, Can : JPL Deep Space Network, Madrid, Goldstone, Canberra. MTC : MAKKAH Time Centre - King Abdulah Centre for Crescent Observations and Astronomy, Makkah, Saudi Arabia. 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 60 (30 April 2013) *** Europe *** Class PRN Start Connects h m BC 16 0 14 SAF,ME,SAM A0 22 1 18 ME,I,EA 74 11 1 34 WNA,ME,ENA A1 22 1 50 ME,I,EA A2 22 2 6 ME,I,EA 74 01 2 22 WNA,ME,ENA A0 14 2 54 ME,I,EA BC 23 4 10 SAF,ME,SAM BD 23 4 26 SAF,ME,SAM D4 23 4 58 SAF,ME,SAM A0 32 5 14 ME,I,EA BC 13 5 30 SAF,ME,SAM A1 32 5 46 ME,I,EA 74 04 6 50 WNA,ME,ENA 75 04 7 6 WNA,ME,ENA,SAM 74 10 7 38 WNA,ME,ENA 75 10 7 54 WNA,ME,ENA BC 08 8 10 SAF,ME,SAM BD 08 8 26 SAF,ME,SAM A0 13 8 42 ME,I,EA A1 13 8 58 ME,I,EA A2 13 9 14 ME,I,EA A3 13 9 30 ME,I,EA 74 05 9 46 WNA,ME,ENA 75 05 10 2 WNA,ME,ENA A0 07 10 18 ME,I,EA 74 26 10 50 WNA,ME,ENA A0 08 11 54 ME,I,EA 74 15 12 26 WNA,ME,ENA 75 15 12 42 WNA,ME,ENA A0 28 13 14 ME,I,EA 74 24 13 46 WNA,ME,ENA,SAM 75 24 14 2 WNA,ME,ENA BC 09 14 50 SAF,ME,I,EA BC 15 15 38 SAF,ME,SAM BC 29 17 30 SAF,ME,SAM BD 29 17 46 SAF,ME,SAM BC 12 19 6 SAF,ME,I,EA 74 30 20 26 WNA,ME,ENA 75 30 20 42 WNA,ME,ENA BC 31 20 58 SAF,ME,SAM 74 16 21 46 WNA,ME,ENA 74 06 22 2 WNA,ME,ENA,SAM 74 03 22 50 WNA,ME,ENA 75 03 23 6 WNA,ME,ENA BD 16 23 22 SAF,ME,SAM D4 16 23 38 SAF,ME,SAM 74 19 23 54 WNA,ME,ENA GPS Schedule no 60 (30 April 2013) *** 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 35 09 0 30 WNA,H,EA 34 09 0 14 H,EA 34 09 0 14 WNA,H D4 09 0 46 WNA,H,EA 35 09 0 30 H,EA,ENA 35 09 0 30 WNA,H,ENA 68 01 1 2 SAM D4 09 0 46 H,EA,ENA D4 09 0 46 WNA,H,ENA 18 07 1 18 WNA,SAM 18 07 1 18 ENA,SAM A0 22 1 18 ME,I,E 74 11 1 34 WNA,ME,E 74 11 1 34 ME,ENA,E A1 22 1 50 ME,I,E 18 08 1 50 WNA,SAM 18 08 1 50 ENA,SAM A2 22 2 6 ME,I,E 19 08 2 6 WNA,SAM 19 08 2 6 ENA,SAM 3C 12 2 22 A,H 74 01 2 22 WNA,ME,E 74 01 2 22 ME,ENA,E 3D 12 2 38 A,H 34 04 2 54 WNA,H,SAM 34 04 2 54 H,ENA,SAM A0 14 2 54 ME,I,E 35 04 3 10 WNA,H,SAM 35 04 3 10 H,ENA,SAM AC 18 3 10 I,A D4 04 3 38 WNA,H,SAM D4 04 3 38 H,ENA,SAM AD 18 3 38 I,A 34 24 3 54 WNA,H,EA 34 24 3 54 H,EA,ENA 34 24 3 54 WNA,H,ENA 34 12 4 58 WNA,H,EA 34 12 4 58 H,EA,ENA AC 22 4 42 I,A 34 02 5 14 WNA,H 34 02 5 14 H,ENA 34 12 4 58 WNA,H,ENA 34 25 6 18 WNA,H,EA 34 25 6 18 H,EA,ENA A0 32 5 14 ME,I,E 74 04 6 50 WNA,ME,E 74 04 6 50 ME,ENA,E 3C 29 5 30 A,H 75 04 7 6 WNA,ME,E,SAM 75 04 7 6 ME,ENA,E,SAM A1 32 5 46 ME,I,E 74 10 7 38 WNA,ME,E 74 10 7 38 ME,ENA,E 3C 14 6 2 A,H 75 10 7 54 WNA,ME,E 75 10 7 54 ME,ENA,E 34 25 6 18 WNA,H,ENA 74 05 9 46 WNA,ME,E 74 05 9 46 ME,ENA,E AC 06 7 54 I,A 75 05 10 2 WNA,ME,E 75 05 10 2 ME,ENA,E AD 06 8 26 I,A 34 29 10 34 WNA,H,SAM 34 29 10 34 H,ENA,SAM A0 13 8 42 ME,I,E 74 26 10 50 WNA,ME,E 74 26 10 50 ME,ENA,E A1 13 8 58 ME,I,E 74 15 12 26 WNA,ME,E 74 15 12 26 ME,ENA,E A2 13 9 14 ME,I,E 75 15 12 42 WNA,ME,E 75 15 12 42 ME,ENA,E A3 13 9 30 ME,I,E 74 24 13 46 WNA,ME,E,SAM 74 24 13 46 ME,ENA,E,SAM A0 07 10 18 ME,I,E 75 24 14 2 WNA,ME,E 75 24 14 2 ME,ENA,E AC 11 11 22 I,A 34 31 15 6 WNA,H,SAM 34 31 15 6 H,ENA,SAM AD 11 11 38 I,A 35 31 15 22 WNA,H,SAM 35 31 15 22 H,ENA,SAM A0 08 11 54 ME,I,E 18 22 15 54 WNA,SAM 18 22 15 54 ENA,SAM AC 01 12 10 I,A 34 32 16 10 WNA,H,EA 34 32 16 10 H,EA,ENA A0 28 13 14 ME,I,E 35 32 16 26 WNA,H,EA 35 32 16 26 H,EA,ENA 3C 32 13 30 A,H 34 20 17 30 WNA,H,EA 34 20 17 30 H,EA,ENA 3D 32 14 2 A,H 34 23 18 34 WNA,H,EA 34 23 18 34 H,EA,ENA 3C 20 14 34 A,H 35 23 18 50 WNA,H,EA 35 23 18 50 H,EA,ENA BC 09 14 50 SAF,ME,I,E D4 32 19 22 WNA,H,SAM D4 32 19 22 H,ENA,SAM 34 32 16 10 WNA,H,ENA 34 13 19 38 WNA,H,EA 34 13 19 38 H,EA,ENA 35 32 16 26 WNA,H,ENA 35 13 19 54 WNA,H,EA 35 13 19 54 H,EA,ENA 34 20 17 30 WNA,H,ENA 74 30 20 26 WNA,ME,E 74 30 20 26 ME,ENA,E 34 23 18 34 WNA,H,ENA 75 30 20 42 WNA,ME,E 75 30 20 42 ME,ENA,E 35 23 18 50 WNA,H,ENA 34 07 21 14 WNA,H,EA 34 07 21 14 H,EA,ENA BC 12 19 6 SAF,ME,I,E 74 16 21 46 WNA,ME,E 74 16 21 46 ME,ENA,E 34 13 19 38 WNA,H,ENA 74 06 22 2 WNA,ME,E,SAM 74 06 22 2 ME,ENA,E,SAM 35 13 19 54 WNA,H,ENA D4 13 22 18 WNA,H,SAM D4 13 22 18 H,ENA,SAM 3C 04 20 26 A,H 34 08 22 34 WNA,H,EA 34 08 22 34 H,EA,ENA 3D 04 20 42 A,H 74 03 22 50 WNA,ME,E 74 03 22 50 ME,ENA,E 34 07 21 14 WNA,H,ENA 75 03 23 6 WNA,ME,E 75 03 23 6 ME,ENA,E 3C 02 22 2 A,H 74 19 23 54 WNA,ME,E 74 19 23 54 ME,ENA,E 34 08 22 34 WNA,H,ENA GPS Schedule no 60 (30 April 2013) *** Hawaii *** *** Australia *** *** India *** Class PRN Start Connects Class PRN Start Connects Class PRN Start Connects h m h m h m 34 09 0 14 WNA,EA CC 29 0 30 SAF F1 18 0 14 I 35 09 0 30 WNA,EA,ENA CD 29 1 2 SAF F2 18 0 30 I D4 09 0 46 WNA,EA,ENA 3C 12 2 22 H,EA A4 14 0 46 SAF 38 24 1 34 I 3D 12 2 38 H,EA F1 14 1 2 I 3C 12 2 22 A,EA AC 18 3 10 I,EA A0 22 1 18 ME,EA,E 3D 12 2 38 A,EA AD 18 3 38 I,EA 38 24 1 34 H 34 04 2 54 WNA,ENA,SAM CC 30 3 54 SAF A1 22 1 50 ME,EA,E 35 04 3 10 WNA,ENA,SAM AC 22 4 42 I,EA A2 22 2 6 ME,EA,E D4 04 3 38 WNA,ENA,SAM CC 16 5 14 SAF F2 14 2 22 I 34 24 3 54 WNA,EA,ENA 3C 29 5 30 H,EA FB 14 2 38 I 38 25 4 10 I CC 03 5 46 SAF A0 14 2 54 ME,EA,E D4 25 4 26 I 3C 14 6 2 H,EA AC 18 3 10 A,EA 34 12 4 58 WNA,EA,ENA CD 03 6 18 SAF AD 18 3 38 A,EA 34 02 5 14 WNA,ENA CC 19 6 34 SAF FC 14 3 54 I 3C 29 5 30 A,EA CD 19 7 6 SAF 38 25 4 10 H 3C 14 6 2 A,EA AC 06 7 54 I,EA D4 25 4 26 H 34 25 6 18 WNA,EA,ENA AD 06 8 26 I,EA AC 22 4 42 A,EA 38 31 6 50 I CC 11 8 42 SAF F1 31 4 58 I D4 31 7 6 I CC 01 8 58 SAF A0 32 5 14 ME,EA,E 38 16 9 46 I CD 01 9 14 SAF A1 32 5 46 ME,EA,E 38 06 10 2 I D4 01 9 30 SAF 38 31 6 50 H 34 29 10 34 WNA,ENA,SAM CC 32 9 46 SAF D4 31 7 6 H 3B 29 10 50 SAM CC 20 10 18 SAF AC 06 7 54 A,EA 3C 32 13 30 A,EA CD 20 10 50 SAF AD 06 8 26 A,EA 3D 32 14 2 A,EA A4 23 11 6 SAF,I A0 13 8 42 ME,EA,E 38 01 14 18 I AC 11 11 22 I,EA A1 13 8 58 ME,EA,E 3C 20 14 34 A,EA AD 11 11 38 I,EA A2 13 9 14 ME,EA,E 34 31 15 6 WNA,ENA,SAM AC 01 12 10 I,EA A3 13 9 30 ME,EA,E 35 31 15 22 WNA,ENA,SAM CC 13 12 26 SAF 38 16 9 46 H 3C 23 15 54 A CD 13 12 58 SAF 38 06 10 2 H 34 32 16 10 WNA,EA,ENA 3C 32 13 30 H,EA A0 07 10 18 ME,EA,E 35 32 16 26 WNA,EA,ENA 3D 32 14 2 H,EA A4 23 11 6 SAF,A 34 20 17 30 WNA,EA,ENA CC 10 14 18 SAF AC 11 11 22 A,EA 38 17 17 46 I 3C 20 14 34 H,EA AD 11 11 38 A,EA 34 23 18 34 WNA,EA,ENA 3C 23 15 54 H A0 08 11 54 ME,EA,E 35 23 18 50 WNA,EA,ENA CC 05 16 42 SAF AC 01 12 10 A,EA D4 32 19 22 WNA,ENA,SAM CD 05 16 58 SAF A4 17 12 42 SAF 34 13 19 38 WNA,EA,ENA A4 05 17 14 SAF,I A0 28 13 14 ME,EA,E 35 13 19 54 WNA,EA,ENA CC 09 18 2 SAF 38 01 14 18 H 3C 04 20 26 A,EA CC 15 19 22 SAF BC 09 14 50 SAF,ME,EA,E 3D 04 20 42 A,EA CD 15 19 38 SAF A4 02 15 54 SAF 38 02 20 58 I 3C 04 20 26 H,EA A4 05 17 14 SAF,A 34 07 21 14 WNA,EA,ENA 3D 04 20 42 H,EA 38 17 17 46 H 38 05 21 46 I CC 12 21 46 SAF BC 12 19 6 SAF,ME,EA,E 3C 02 22 2 A,EA 3C 02 22 2 H,EA A4 25 20 42 SAF D4 13 22 18 WNA,ENA,SAM CD 12 22 18 SAF 38 02 20 58 H 34 08 22 34 WNA,EA,ENA D4 12 22 34 SAF 38 05 21 46 H 38 26 22 50 I CC 25 23 54 SAF 38 26 22 50 H GPS Schedule no 60 (30 April 2013) *** Middle East *** *** South Africa *** *** South America *** Class PRN Start Connects Class PRN Start Connects Class PRN Start Connects h m h m h m BC 16 0 14 SAF,E,SAM BC 16 0 14 ME,E,SAM BC 16 0 14 SAF,ME,E A0 22 1 18 I,EA,E CC 29 0 30 A F8 01 0 30 SAM 74 11 1 34 WNA,ENA,E A4 14 0 46 I FB 01 0 46 SAM A1 22 1 50 I,EA,E CD 29 1 2 A 68 01 1 2 ENA A2 22 2 6 I,EA,E CC 30 3 54 A 18 07 1 18 WNA,ENA 74 01 2 22 WNA,ENA,E BC 23 4 10 ME,E,SAM F8 07 1 34 SAM A0 14 2 54 I,EA,E BD 23 4 26 ME,E,SAM 18 08 1 50 WNA,ENA BC 23 4 10 SAF,E,SAM D4 23 4 58 ME,E,SAM 19 08 2 6 WNA,ENA BD 23 4 26 SAF,E,SAM CC 16 5 14 A FB 07 2 22 SAM D4 23 4 58 SAF,E,SAM BC 13 5 30 ME,E,SAM FC 07 2 38 SAM A0 32 5 14 I,EA,E CC 03 5 46 A 34 04 2 54 WNA,H,ENA BC 13 5 30 SAF,E,SAM CD 03 6 18 A 35 04 3 10 WNA,H,ENA A1 32 5 46 I,EA,E CC 19 6 34 A D4 04 3 38 WNA,H,ENA 74 04 6 50 WNA,ENA,E CD 19 7 6 A F8 10 3 54 SAM 75 04 7 6 WNA,ENA,E,SAM BC 08 8 10 ME,E,SAM BC 23 4 10 SAF,ME,E 74 10 7 38 WNA,ENA,E BD 08 8 26 ME,E,SAM BD 23 4 26 SAF,ME,E 75 10 7 54 WNA,ENA,E CC 11 8 42 A FB 10 4 42 SAM BC 08 8 10 SAF,E,SAM CC 01 8 58 A D4 23 4 58 SAF,ME,E BD 08 8 26 SAF,E,SAM CD 01 9 14 A FC 10 5 14 SAM A0 13 8 42 I,EA,E D4 01 9 30 A BC 13 5 30 SAF,ME,E A1 13 8 58 I,EA,E CC 32 9 46 A FD 10 5 46 SAM A2 13 9 14 I,EA,E CC 20 10 18 A F8 17 6 2 SAM A3 13 9 30 I,EA,E CD 20 10 50 A FB 17 6 18 SAM 74 05 9 46 WNA,ENA,E A4 23 11 6 I,A FC 17 6 34 SAM 75 05 10 2 WNA,ENA,E CC 13 12 26 A FD 17 6 50 SAM A0 07 10 18 I,EA,E A4 17 12 42 I 75 04 7 6 WNA,ME,ENA,E 74 26 10 50 WNA,ENA,E CD 13 12 58 A FE 17 7 22 SAM A0 08 11 54 I,EA,E CC 10 14 18 A FE 17 7 38 SAM 74 15 12 26 WNA,ENA,E BC 09 14 50 ME,I,EA,E F8 09 7 54 SAM 75 15 12 42 WNA,ENA,E BC 15 15 38 ME,E,SAM BC 08 8 10 SAF,ME,E A0 28 13 14 I,EA,E A4 02 15 54 I BD 08 8 26 SAF,ME,E 74 24 13 46 WNA,ENA,E,SAM CC 05 16 42 A FB 09 8 42 SAM 75 24 14 2 WNA,ENA,E CD 05 16 58 A F8 04 8 58 SAM BC 09 14 50 SAF,I,EA,E A4 05 17 14 I,A 34 29 10 34 WNA,H,ENA BC 15 15 38 SAF,E,SAM BC 29 17 30 ME,E,SAM 3B 29 10 50 H BC 29 17 30 SAF,E,SAM BD 29 17 46 ME,E,SAM 74 24 13 46 WNA,ME,ENA,E BD 29 17 46 SAF,E,SAM CC 09 18 2 A 34 31 15 6 WNA,H,ENA BC 12 19 6 SAF,I,EA,E BC 12 19 6 ME,I,EA,E 35 31 15 22 WNA,H,ENA 74 30 20 26 WNA,ENA,E CC 15 19 22 A BC 15 15 38 SAF,ME,E 75 30 20 42 WNA,ENA,E CD 15 19 38 A 18 22 15 54 WNA,ENA BC 31 20 58 SAF,E,SAM A4 25 20 42 I BC 29 17 30 SAF,ME,E 74 16 21 46 WNA,ENA,E BC 31 20 58 ME,E,SAM BD 29 17 46 SAF,ME,E 74 06 22 2 WNA,ENA,E,SAM CC 12 21 46 A D4 32 19 22 WNA,H,ENA 74 03 22 50 WNA,ENA,E CD 12 22 18 A BC 31 20 58 SAF,ME,E 75 03 23 6 WNA,ENA,E D4 12 22 34 A 74 06 22 2 WNA,ME,ENA,E BD 16 23 22 SAF,E,SAM BD 16 23 22 ME,E,SAM D4 13 22 18 WNA,H,ENA D4 16 23 38 SAF,E,SAM D4 16 23 38 ME,E,SAM BD 16 23 22 SAF,ME,E 74 19 23 54 WNA,ENA,E CC 25 23 54 A D4 16 23 38 SAF,ME,E