29 March 2006 FA/GPSW.396 Dear Colleagues, Please find enclosed tracking schedule No. 46 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 53828 (03 April 2006) 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 In the future, when all single-channel receivers are withdrawn from operation, the use of a fixed reference date for multi-channel receivers will allow us to cease publication of this common-view schedule.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 46 * * for implementation on MJD 53828 (03 April 2006) 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, BY*, CAO, CH, DLR, DTAG, IT*, IFAG, IPQ, JV, LDS, LT, Mad*, MIKE, NIMB, NMC, NPL, OMH, OP, ORB, PL, PTB, RAAI*, RIRT*, ROA, SMU, SP, SU, TP, UME, VSL, ZMDM* 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. * BY : Belarusian State Institute of Metrology. AO : Arecibo Observatory. IT : Istituto Nazionale di Ricerca Metrologica (I.N.RI.M.), formerly IEN. Kou : CNES Kourou Center. Mad, Gold, Can : JPL Deep Space Network, Madrid, Goldstone, Canberra. RIRT : Russian Institute of Radionavigation and Time, Saint Petersburg. RAAI : Romanian Academy Astronomical Institute, Bucarest. WWV, WWVH : NIST stations in Colorado and Hawaii. ZMDM : Bureau of Measures and Precious Metals, Belgrade, Serbia and Montenegro. 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 46 (03 April 2006) *** Europe *** Class PRN Start Connects h m BC 02 1 30 SAF,ME,I BC 06 2 2 SAF,ME,SAM BD 06 2 18 SAF,ME,SAM A0 02 2 34 ME,I,EA 18 01 2 50 WNA,ENA,SAM BC 05 3 54 SAF,ME,I A0 06 5 30 ME,I,EA A1 06 5 46 ME,I,EA BC 18 6 50 SAF,ME,I A0 21 7 22 ME,I,EA A1 21 7 38 ME,I,EA A2 21 7 54 ME,I,EA A0 15 8 22 ME,I,EA A0 18 8 38 ME,I,EA 74 19 8 54 WNA,ME,ENA A1 18 9 10 ME,I,EA A0 22 9 58 ME,I,EA A1 22 10 14 ME,I,EA 18 11 10 30 WNA,ENA,SAM 74 11 10 46 WNA,ME,ENA A0 14 11 2 ME,I,EA BC 01 11 18 SAF,ME,I BD 01 11 34 SAF,ME,I A1 14 12 6 ME,I,EA BC 23 12 38 SAF,ME,SAM A0 01 12 54 ME,I,EA A1 01 13 10 ME,I,EA 74 24 13 42 WNA,ME,ENA 75 24 13 58 WNA,ME,ENA BC 13 14 14 SAF,ME,SAM BD 13 14 30 SAF,ME,SAM 74 04 15 18 WNA,ME,ENA 75 04 15 34 WNA,ME,ENA BC 27 15 50 SAF,ME,SAM BC 24 16 38 SAF,ME,SAM 18 02 16 54 WNA,ENA,SAM BD 04 17 26 SAF,ME,SAM 74 10 18 14 WNA,ME,ENA 75 10 18 30 WNA,ME,ENA 76 10 18 46 WNA,ME,ENA BC 28 19 34 SAF,ME,I 74 29 19 50 WNA,ME,ENA 75 29 20 6 WNA,ME,ENA 74 26 20 22 WNA,ME,ENA 75 26 20 38 WNA,ME,ENA BC 10 20 54 SAF,ME,SAM 74 09 22 30 WNA,ME,ENA 18 18 23 2 WNA,ENA,SAM GPS Schedule no 46 (03 April 2006) *** 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 01 0 10 WNA,H 34 01 0 10 H,ENA BC 04 0 10 SAF,ME,I 68 22 0 26 SAM 34 11 0 26 H,EA 34 11 0 26 WNA,H 35 01 0 42 WNA,H 35 01 0 42 H,ENA AC 28 0 42 I,A 69 22 0 58 SAM 35 11 0 58 H,EA 35 11 0 58 WNA,H 6A 22 1 14 SAM 34 20 1 46 H,EA,ENA 3C 23 1 14 A,H 34 20 1 46 WNA,H,EA 35 20 2 2 H,EA,ENA 34 20 1 46 WNA,H,ENA 35 20 2 2 WNA,H,EA D4 20 2 34 H,ENA 35 20 2 2 WNA,H,ENA D4 20 2 34 WNA,H 18 01 2 50 ENA,E,SAM 3C 13 2 18 A,H 18 01 2 50 WNA,E,SAM 34 23 3 6 H,EA,ENA A0 02 2 34 ME,I,E 34 23 3 6 WNA,H,EA 35 23 3 22 H,EA,ENA 34 23 3 6 WNA,H,ENA 35 23 3 22 WNA,H,EA 18 16 3 38 ENA,SAM 35 23 3 22 WNA,H,ENA 18 16 3 38 WNA,SAM D5 20 3 54 H,ENA 34 13 4 10 WNA,H D5 20 3 54 WNA,H 34 13 4 10 H,EA 35 13 4 26 WNA,H,ENA 68 01 4 10 SAM 35 13 4 26 H,EA,ENA D4 13 4 42 WNA,H,ENA 35 13 4 26 WNA,H,EA D4 13 4 42 H,EA,ENA 38 02 4 58 I,H D4 13 4 42 WNA,H,EA 18 23 5 46 ENA,SAM A0 06 5 30 ME,I,E 18 23 5 46 WNA,SAM 34 27 6 2 H,EA A1 06 5 46 ME,I,E 35 27 6 18 WNA,H,EA 35 27 6 18 H,EA,ENA 34 27 6 2 WNA,H 19 23 6 34 WNA,SAM 19 23 6 34 ENA,SAM 35 27 6 18 WNA,H,ENA 18 19 6 50 WNA,SAM 18 19 6 50 ENA,SAM 3C 02 6 50 A,H D5 13 7 22 WNA,H,SAM D5 13 7 22 H,ENA,SAM A0 21 7 22 ME,I,E D6 13 7 38 WNA,H,SAM D6 13 7 38 H,ENA,SAM A1 21 7 38 ME,I,E 74 19 8 54 WNA,ME,E 74 19 8 54 ME,ENA,E A2 21 7 54 ME,I,E 34 08 9 58 WNA,H,SAM 34 08 9 58 H,ENA,SAM A0 15 8 22 ME,I,E 18 11 10 30 WNA,E,SAM 18 11 10 30 ENA,E,SAM A0 18 8 38 ME,I,E 74 11 10 46 WNA,ME,E 74 11 10 46 ME,ENA,E AC 09 8 54 I,A 34 04 11 50 WNA,H,SAM 34 04 11 50 H,ENA,SAM A1 18 9 10 ME,I,E 35 04 12 6 WNA,H,SAM 35 04 12 6 H,ENA,SAM A0 22 9 58 ME,I,E D4 04 12 22 WNA,H,SAM D4 04 12 22 H,ENA,SAM A1 22 10 14 ME,I,E 74 24 13 42 WNA,ME,E 74 24 13 42 ME,ENA,E 3C 05 10 46 A,H 75 24 13 58 WNA,ME,E 75 24 13 58 ME,ENA,E A0 14 11 2 ME,I,E 74 04 15 18 WNA,ME,E 74 04 15 18 ME,ENA,E A1 14 12 6 ME,I,E 75 04 15 34 WNA,ME,E 75 04 15 34 ME,ENA,E A0 01 12 54 ME,I,E 34 06 16 22 WNA,H,EA 34 06 16 22 H,EA,ENA A1 01 13 10 ME,I,E 18 02 16 54 WNA,E,SAM 18 02 16 54 ENA,E,SAM 3C 06 13 26 A,H 35 06 17 26 WNA,H 35 06 17 26 H,ENA 3D 06 14 14 A,H 74 10 18 14 WNA,ME,E 74 10 18 14 ME,ENA,E AC 14 14 30 I,A,H 75 10 18 30 WNA,ME,E 75 10 18 30 ME,ENA,E 3C 14 15 2 A,H 76 10 18 46 WNA,ME,E 76 10 18 46 ME,ENA,E 3C 07 15 18 A,H 34 15 19 18 WNA,H,EA 34 15 19 18 H,EA,ENA 34 06 16 22 WNA,H,ENA 35 15 19 34 WNA,H,EA 35 15 19 34 H,EA,ENA AC 01 16 38 I,A 74 29 19 50 WNA,ME,E 74 29 19 50 ME,ENA,E AC 03 17 10 I,A 75 29 20 6 WNA,ME,E 75 29 20 6 ME,ENA,E 34 15 19 18 WNA,H,ENA 74 26 20 22 WNA,ME,E 74 26 20 22 ME,ENA,E 35 15 19 34 WNA,H,ENA 75 26 20 38 WNA,ME,E 75 26 20 38 ME,ENA,E AC 11 20 22 I,A 18 21 21 42 WNA,SAM 18 21 21 42 ENA,SAM AD 11 20 38 I,A 74 09 22 30 WNA,ME,E 74 09 22 30 ME,ENA,E AE 11 20 54 I,A 18 18 23 2 WNA,E,SAM 18 18 23 2 ENA,E,SAM 3C 20 22 46 A,H GPS Schedule no 46 (03 April 2006) *** Hawaii *** *** Australia *** *** India *** Class PRN Start Connects Class PRN Start Connects Class PRN Start Connects h m h m h m 34 01 0 10 WNA,ENA AC 28 0 42 I,EA BC 04 0 10 SAF,ME,EA 34 11 0 26 WNA,EA 3C 23 1 14 H,EA A4 02 0 26 SAF 35 01 0 42 WNA,ENA CC 10 1 46 SAF AC 28 0 42 A,EA 35 11 0 58 WNA,EA 3C 13 2 18 H,EA F1 02 0 58 I 3C 23 1 14 A,EA CC 29 2 34 SAF F2 02 1 14 I F0 11 1 30 H CD 29 2 50 SAF BC 02 1 30 SAF,ME,E 34 20 1 46 WNA,EA,ENA CC 26 3 6 SAF FB 02 1 46 I 35 20 2 2 WNA,EA,ENA CD 26 3 22 SAF FC 02 2 2 I 3C 13 2 18 A,EA D4 26 3 38 SAF FD 02 2 18 I D4 20 2 34 WNA,ENA CC 09 5 14 SAF A0 02 2 34 ME,EA,E FB 11 2 50 H CD 09 5 30 SAF FE 02 2 50 I 34 23 3 6 WNA,EA,ENA D4 09 5 46 SAF FE 02 3 6 I 35 23 3 22 WNA,EA,ENA 3C 04 6 34 H 38 04 3 38 H 38 04 3 38 I 3C 02 6 50 H,EA BC 05 3 54 SAF,ME,E D5 20 3 54 WNA,ENA CC 05 7 22 SAF 38 02 4 58 H,EA 34 13 4 10 WNA,EA 3C 10 8 38 H D4 02 5 14 H 35 13 4 26 WNA,EA,ENA AC 09 8 54 I,EA A0 06 5 30 ME,EA,E D4 13 4 42 WNA,EA,ENA CC 06 9 10 SAF A1 06 5 46 ME,EA,E 38 02 4 58 I,EA CD 06 9 42 SAF BC 18 6 50 SAF,ME,E D4 02 5 14 I 3C 05 10 46 H,EA A0 21 7 22 ME,EA,E 34 27 6 2 WNA,EA CC 07 11 2 SAF A1 21 7 38 ME,EA,E 35 27 6 18 WNA,EA,ENA CC 16 12 22 SAF A2 21 7 54 ME,EA,E 3C 04 6 34 A CD 16 12 54 SAF A0 15 8 22 ME,EA,E 3C 02 6 50 A,EA D4 16 13 10 SAF A0 18 8 38 ME,EA,E D5 13 7 22 WNA,ENA,SAM 3C 06 13 26 H,EA AC 09 8 54 A,EA D6 13 7 38 WNA,ENA,SAM A4 16 13 42 SAF,I A1 18 9 10 ME,EA,E 3C 10 8 38 A 3D 06 14 14 H,EA BC 14 9 26 SAF,ME 34 08 9 58 WNA,ENA,SAM AC 14 14 30 I,H,EA A0 22 9 58 ME,EA,E 38 09 10 30 I 3C 14 15 2 H,EA A1 22 10 14 ME,EA,E 3C 05 10 46 A,EA 3C 07 15 18 H,EA 38 09 10 30 H 34 04 11 50 WNA,ENA,SAM CC 19 15 34 SAF A0 14 11 2 ME,EA,E 35 04 12 6 WNA,ENA,SAM 3C 21 15 50 H BC 01 11 18 SAF,ME,E D4 04 12 22 WNA,ENA,SAM CD 19 16 6 SAF BD 01 11 34 SAF,ME,E 3C 06 13 26 A,EA AC 01 16 38 I,EA A1 14 12 6 ME,EA,E 38 14 13 58 I 3C 15 16 54 H A0 01 12 54 ME,EA,E 3D 06 14 14 A,EA AC 03 17 10 I,EA A1 01 13 10 ME,EA,E AC 14 14 30 I,A,EA CC 11 17 58 SAF A4 16 13 42 SAF,A 3C 14 15 2 A,EA CD 11 18 14 SAF 38 14 13 58 H 3C 07 15 18 A,EA CC 20 18 46 SAF AC 14 14 30 A,H,EA 3C 21 15 50 A CD 20 19 18 SAF AC 01 16 38 A,EA 34 06 16 22 WNA,EA,ENA AC 11 20 22 I,EA AC 03 17 10 A,EA 3C 15 16 54 A AD 11 20 38 I,EA 38 16 17 42 H 35 06 17 26 WNA,ENA AE 11 20 54 I,EA BC 28 19 34 SAF,ME,E 38 16 17 42 I CC 24 21 10 SAF AC 11 20 22 A,EA 34 15 19 18 WNA,EA,ENA CD 24 21 26 SAF AD 11 20 38 A,EA 35 15 19 34 WNA,EA,ENA A4 24 21 42 SAF,I AE 11 20 54 A,EA 38 11 22 30 I CC 13 21 58 SAF A4 24 21 42 SAF,A 3C 20 22 46 A,EA 3C 20 22 46 H,EA 38 11 22 30 H GPS Schedule no 46 (03 April 2006) *** 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 04 0 10 SAF,I,EA BC 04 0 10 ME,I,EA F8 06 0 10 SAM BC 02 1 30 SAF,I,E A4 02 0 26 I 68 22 0 26 ENA BC 06 2 2 SAF,E,SAM CA 06 0 42 SAM CA 06 0 42 SAF BD 06 2 18 SAF,E,SAM BC 02 1 30 ME,I,E 69 22 0 58 ENA A0 02 2 34 I,EA,E CC 10 1 46 A 6A 22 1 14 ENA BC 05 3 54 SAF,I,E BC 06 2 2 ME,E,SAM FB 06 1 30 SAM BC 15 4 42 SAF,SAM BD 06 2 18 ME,E,SAM F8 07 1 46 SAM A0 06 5 30 I,EA,E CC 29 2 34 A BC 06 2 2 SAF,ME,E A1 06 5 46 I,EA,E CD 29 2 50 A BD 06 2 18 SAF,ME,E BC 18 6 50 SAF,I,E CC 26 3 6 A FB 07 2 34 SAM A0 21 7 22 I,EA,E CD 26 3 22 A 18 01 2 50 WNA,ENA,E A1 21 7 38 I,EA,E D4 26 3 38 A FC 07 3 6 SAM A2 21 7 54 I,EA,E BC 05 3 54 ME,I,E F8 03 3 22 SAM A0 15 8 22 I,EA,E BC 15 4 42 ME,SAM 18 16 3 38 WNA,ENA A0 18 8 38 I,EA,E CC 09 5 14 A F8 01 3 54 SAM 74 19 8 54 WNA,ENA,E CD 09 5 30 A 68 01 4 10 ENA A1 18 9 10 I,EA,E D4 09 5 46 A FB 01 4 26 SAM BC 14 9 26 SAF,I BC 18 6 50 ME,I,E BC 15 4 42 SAF,ME A0 22 9 58 I,EA,E CC 05 7 22 A FC 01 4 58 SAM A1 22 10 14 I,EA,E CC 06 9 10 A FD 01 5 14 SAM 74 11 10 46 WNA,ENA,E BC 14 9 26 ME,I FE 01 5 30 SAM A0 14 11 2 I,EA,E CD 06 9 42 A 18 23 5 46 WNA,ENA BC 01 11 18 SAF,I,E CC 07 11 2 A FE 01 6 2 SAM BD 01 11 34 SAF,I,E BC 01 11 18 ME,I,E FE 01 6 18 SAM A1 14 12 6 I,EA,E BD 01 11 34 ME,I,E 19 23 6 34 WNA,ENA BC 23 12 38 SAF,E,SAM CC 16 12 22 A 18 19 6 50 WNA,ENA A0 01 12 54 I,EA,E BC 23 12 38 ME,E,SAM F8 11 7 6 SAM A1 01 13 10 I,EA,E CD 16 12 54 A D5 13 7 22 WNA,H,ENA 74 24 13 42 WNA,ENA,E D4 16 13 10 A D6 13 7 38 WNA,H,ENA 75 24 13 58 WNA,ENA,E A4 16 13 42 I,A FB 11 7 54 SAM BC 13 14 14 SAF,E,SAM BC 13 14 14 ME,E,SAM FC 11 8 22 SAM BD 13 14 30 SAF,E,SAM BD 13 14 30 ME,E,SAM FD 11 8 38 SAM 74 04 15 18 WNA,ENA,E CC 19 15 34 A 34 08 9 58 WNA,H,ENA 75 04 15 34 WNA,ENA,E BC 27 15 50 ME,E,SAM 18 11 10 30 WNA,ENA,E BC 27 15 50 SAF,E,SAM CD 19 16 6 A 34 04 11 50 WNA,H,ENA BC 24 16 38 SAF,E,SAM BC 24 16 38 ME,E,SAM 35 04 12 6 WNA,H,ENA BD 24 17 10 SAF,SAM BD 24 17 10 ME,SAM D4 04 12 22 WNA,H,ENA BD 04 17 26 SAF,E,SAM BD 04 17 26 ME,E,SAM BC 23 12 38 SAF,ME,E 74 10 18 14 WNA,ENA,E CC 11 17 58 A BC 13 14 14 SAF,ME,E 75 10 18 30 WNA,ENA,E CD 11 18 14 A BD 13 14 30 SAF,ME,E 76 10 18 46 WNA,ENA,E CC 20 18 46 A BC 27 15 50 SAF,ME,E BC 28 19 34 SAF,I,E CD 20 19 18 A BC 24 16 38 SAF,ME,E 74 29 19 50 WNA,ENA,E BC 28 19 34 ME,I,E 18 02 16 54 WNA,ENA,E 75 29 20 6 WNA,ENA,E BC 10 20 54 ME,E,SAM BD 24 17 10 SAF,ME 74 26 20 22 WNA,ENA,E CC 24 21 10 A BD 04 17 26 SAF,ME,E 75 26 20 38 WNA,ENA,E CD 24 21 26 A BC 10 20 54 SAF,ME,E BC 10 20 54 SAF,E,SAM A4 24 21 42 I,A 18 21 21 42 WNA,ENA 74 09 22 30 WNA,ENA,E CC 13 21 58 A 18 18 23 2 WNA,ENA,E