"Pseudo-MPEC" for 1963-039C = NORAD 00692 = Vela 1B
Created 2018 Sep 19 16:36:06 UT using Find_Orb
Click here for an explanation of pseudo-MPECs
Click here for a plot of inclination and perigee distance, from launch in 1963 to 2020.. You'll see that the object started out in a nearly circular orbit, and has had some swings over the intervening decades, mostly due to the Kozai mechanism. A longer-term plot shows that, unlike many objects in such orbits, the perigee is unlikely to drop low enough to cause the object to re-enter the earth's atmosphere.
You can click here for TLEs for this object, and for some of the other objects on this site.
Astrometry: 1963-039C C2014 10 30.30571 01 37 23.46 +08 33 38.3 16.7 r D0512I41 1963-039C C2014 10 30.31257 01 38 28.39 +08 46 56.3 16.6 r D0512I41 1963-039C C2014 10 30.32516 01 40 29.72 +09 11 30.3 16.6 r D0512I41 1963-039C C2014 10 30.33204 01 41 37.50 +09 25 00.5 16.5 r D0512I41 1963-039C C2014 10 30.38036 01 50 09.83 +11 02 02.6 15.8 r D0512I41 1963-039C C2014 10 30.39071 01 52 09.03 +11 23 17.0 15.7 r D0512I41 1963-039C C2014 10 30.39762 01 53 30.74 +11 37 31.4 15.5 r D0512I41 1963-039C C2014 10 30.40452 01 54 53.92 +11 51 48.5 15.5 r D0512I41 1963-039C C2017 11 22.24855 01 23 33.97 +18 16 07.6 16.1 GUD0560703 1963-039C C2017 11 22.24872 01 23 34.69 +18 16 16.0 16.1 GUD0560703 1963-039C C2017 11 22.24889 01 23 35.39 +18 16 23.8 16.1 GUD0560703 1963-039C C2017 11 22.24909 01 23 36.24 +18 16 32.4 16.1 GUD0560703 1963-039C C2017 11 22.26790 01 24 56.76 +18 30 24.6 qD0560I52 1963-039C C2017 11 22.26867 01 25 00.11 +18 30 58.3 16.4 GqD0560I52 1963-039C C2017 11 22.26945 01 25 03.51 +18 31 32.5 16.5 GqD0560I52 1963-039C C2017 11 22.29132901 26 21.78 +18 42 28.7 16.2 GUD0560H01 1963-039C KC2017 11 22.29669 01 26 33.15 +18 47 50.2 16.4 VqD0560H06 1963-039C KC2017 11 22.29759 01 26 37.54 +18 48 26.5 16.8 VqD0560H06 1963-039C C2017 11 22.29805701 26 53.93 +18 47 06.0 15.8 GUD0560H01 1963-039C KC2017 11 22.29857 01 26 42.30 +18 49 06.1 16.8 VqD0560H06 1963-039C KC2017 11 22.29918 01 26 45.22 +18 49 30.8 16.6 VqD0560H06 1963-039C C2017 11 22.30564801 27 30.95 +18 52 15.3 15.9 GUD0560H01 1963-039C C2017 11 22.31191901 28 02.15 +18 56 27.9 16.1 GUD0560H01 1963-039C C2017 11 22.36215001 32 34.35 +19 28 47.8 16.0 GUD0560H01 1963-039C C2017 11 22.36572501 32 55.36 +19 31 00.6 15.8 GUD0560H01 1963-039C C2017 11 22.36929501 33 16.60 +19 33 12.7 15.9 GUD0560H01 1963-039C C2017 11 22.37286801 33 38.08 +19 35 24.3 15.9 GUD0560H01 1963-039C C2017 11 22.37748 01 34 11.15 +19 43 33.9 15.9 GUD0560703 1963-039C C2017 11 22.37766 01 34 12.22 +19 43 40.2 15.8 GUD0560703 1963-039C C2017 11 22.37784 01 34 13.31 +19 43 47.2 15.8 GUD0560703 1963-039C C2017 11 22.37801 01 34 14.34 +19 43 53.6 15.8 GUD0560703 1963-039C C2017 11 22.39543 01 36 01.73 +19 54 24.0 x16.2 GUD0560I52 1963-039C C2017 11 22.39598 01 36 05.12 +19 54 44.4 x16.5 GUD0560I52 1963-039C C2017 11 22.39653 01 36 08.61 +19 55 03.3 x17.2 GUD0560I52 1963-039C C2017 11 22.39708 01 36 12.08 +19 55 23.5 x16.5 GUD0560I52 Station data: (703) Catalina Sky Survey (N32.417006 W110.732640) US/Arizona. Observer G. J. Leonard. Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, J. A. Johnson, R. A. Kowalski, S. M. Larson, G. J. Leonard, R. G. Matheny, R. L. Seaman, F. C. Shelly. 0.68-m Schmidt + 10K CCD. (H01) Magdalena Ridge Observatory, Socorro (N33.984833 W107.189333) US/New Mexico. Observers W. H. Ryan, E. V. Ryan. Measurer W. H. Ryan. 2.4-m f/8.9 reflector + CCD. (H06) RAS Observatory, Mayhill (N32.903325 W105.528700) US/New Mexico. Observer M. Suzuki. 0.43-m f/6.8 reflector + CCD + f/4.5 focal reducer. (I41) Palomar Mountain--ZTF (N33.357340 W116.859780) US/California. 1.2-m f/2.44 Oschin Schmidt + CCD. (I52) Steward Observatory, Mt. Lemmon Station (N32.442547 W110.788920) US/Arizona. Observers D. C. Fuls, R. A. Kowalski. Measurers E. J. Christensen, D. C. Fuls, A. R. Gibbs, A. D. Grauer, R. E. Hill, J. A. Johnson, R. A. Kowalski, S. M. Larson, R. G. Matheny, F. C. Shelly, G. J. Leonard, R. L. Seaman. 1.0-m reflector + CCD. Orbital elements: 1963-039C = NORAD 00692 = Vela 1B Perigee 2017 Nov 23.862688 +/- 0.000173 TT = 20:42:16 (JD 2458081.362688) Epoch 2017 Nov 22.0 TT; AMR 0.026167 +/- 0.00566 m2/kg Gray M 211.6801287 +/- 0.013 (J2000 equator) n 79.6267913101 +/- 0.00011 Peri. 199.6714913 +/- 0.0055 a115495.22498 +/- 0.106 Node 348.4428337 +/- 0.0043 e 0.571593781 +/- 3.79e-5 Incl. 31.9778412 +/- 0.00033 P6510.25m/4.521d H 30.3 G 0.15 U 6.6 q 49478.872616 +/- 4.36 Q 181511.57735 +/- 4.45 31 of 35 observations 2014 Oct. 30-2017 Nov. 22; mean residual 0".661
Residuals in arcseconds: 141030 I41 1.18- 1.42- 171122 I52 .961+ .353- 171122 H01 .069- .085- 141030 I41 .932+ .070- 171122 I52 1.07+ .303- 171122 H01 .084+ .081- 141030 I41 .732- .071+ 171122 I52 1.19+ .147- 171122 H01 .023+ .093- 141030 I41 1.94- 1.46- 171122 H01 .289- .169+ 171122 703 .161- 423µ- 141030 I41 .055+ .126- 171122 H06 .109- .769+ 171122 703 .194- .320- 141030 I41 1.10+ 1.36+ 171122 H06 .438+ .480+ 171122 703 .048+ .063+ 141030 I41 1.96+ .975+ 171122 H01 .327- .186+ 171122 703 .276+ .214+ 141030 I41 .125+ .624+ 171122 H06 .563+ .299+ 171122 I52(4.21+ 1.46-) 171122 703 .774- .408- 171122 H06 .064- .269+ 171122 I52(3.10+ .838-) 171122 703 .604- .322+ 171122 H01 .205- .201+ 171122 I52(3.33+ 1.70-) 171122 703 .723- .454+ 171122 H01 .039- .094+ 171122 I52(3.19+ 1.25-) 171122 703 .490- .035+ 171122 H01 .129+ 7.7m+ Ephemerides (geocentric): Date (UTC) HH RA Dec delta elong mag " sig PA ---- -- -- -- ------------- ----------- ------ ----- --- ---- --- 2017 11 22 00 00 59 30.805 +15 31 58.55 177402 139.3 17.2 192 62 2017 11 22 01 01 03 45.860 +16 04 49.37 176489 140.4 17.2 193 62 2017 11 22 02 01 08 05.148 +16 37 42.49 175484 141.5 17.1 194 63 2017 11 22 03 01 12 29.090 +17 10 38.89 174386 142.6 17.1 195 63 2017 11 22 04 01 16 58.136 +17 43 39.51 173194 143.7 17.1 197 63 2017 11 22 05 01 21 32.768 +18 16 45.21 171906 144.8 17.0 198 64 2017 11 22 06 01 26 13.505 +18 49 56.84 170523 146.0 17.0 200 64 2017 11 22 07 01 31 00.908 +19 23 15.13 169044 147.1 16.9 202 65 2017 11 22 08 01 35 55.585 +19 56 40.76 167467 148.3 16.9 204 65 2017 11 22 09 01 40 58.197 +20 30 14.29 165791 149.5 16.8 207 66 2017 11 22 10 01 46 09.468 +21 03 56.17 164016 150.7 16.7 210 66 2017 11 22 11 01 51 30.189 +21 37 46.69 162140 151.9 16.7 213 67 2017 11 22 12 01 57 01.230 +22 11 45.94 160162 153.2 16.6 216 67 2017 11 22 13 02 02 43.550 +22 45 53.79 158080 154.5 16.6 220 68 2017 11 22 14 02 08 38.214 +23 20 09.83 155894 155.8 16.5 224 68 2017 11 22 15 02 14 46.399 +23 54 33.27 153602 157.1 16.4 229 69 2017 11 22 16 02 21 09.421 +24 29 02.88 151201 158.5 16.3 234 70 2017 11 22 17 02 27 48.749 +25 03 36.86 148692 159.8 16.3 240 70 2017 11 22 18 02 34 46.032 +25 38 12.70 146071 161.2 16.2 246 71 2017 11 22 19 02 42 03.124 +26 12 47.01 143337 162.6 16.1 253 72 2017 11 22 20 02 49 42.120 +26 47 15.25 140489 164.1 16.0 261 73 2017 11 22 21 02 57 45.391 +27 21 31.45 137525 165.4 15.9 270 74 2017 11 22 22 03 06 15.631 +27 55 27.82 134442 166.8 15.8 279 75 2017 11 22 23 03 15 15.911 +28 28 54.23 131240 168.0 15.7 290 76 2017 11 23 00 03 24 49.740 +29 01 37.55 127915 169.0 15.6 302 77 2017 11 23 01 03 35 01.132 +29 33 20.78 124468 169.8 15.5 316 78 2017 11 23 02 03 45 54.697 +30 03 41.90 120897 170.1 15.4 332 80 2017 11 23 03 03 57 35.727 +30 32 12.40 117200 169.7 15.4 350 81 2017 11 23 04 04 10 10.301 +30 58 15.26 113378 168.8 15.4 371 83 2017 11 23 05 04 23 45.395 +31 21 02.32 109430 167.2 15.3 394 84 2017 11 23 06 04 38 28.988 +31 39 30.83 105359 165.1 15.3 421 86 2017 11 23 07 04 54 30.160 +31 52 18.80 101167 162.4 15.3 453 88 2017 11 23 08 05 11 59.147 +31 57 39.00 96861 159.3 15.3 491 91 2017 11 23 09 05 31 07.337 +31 53 11.21 92447 155.7 15.3 534 93 2017 11 23 10 05 52 07.139 +31 35 52.31 87940 151.6 15.4 587 96 2017 11 23 11 06 15 11.692 +31 01 44.48 83358 147.0 15.4 649 99 2017 11 23 12 06 40 34.322 +30 05 41.88 78730 141.8 15.4 723 102 2017 11 23 13 07 08 27.753 +28 41 18.23 74096 135.8 15.4 813 105 2017 11 23 14 07 39 03.106 +26 40 40.27 69513 129.0 15.5 920 109 2017 11 23 15 08 12 28.914 +23 54 38.01 65064 121.2 15.6 1048 112 2017 11 23 16 08 48 50.547 +20 13 31.07 60860 112.2 15.7 1197 116 2017 11 23 17 09 28 10.506 +15 29 01.29 57053 101.9 15.9 1363 119 2017 11 23 18 10 10 29.662 +09 37 44.04 53831 90.3 16.2 1534 121 2017 11 23 19 10 55 48.419 +02 46 16.42 51408 77.3 16.7 1689 122 2017 11 23 20 11 44 05.113 -04 43 48.08 49991 63.4 17.5 1796 122 2017 11 23 21 12 35 08.002 -12 15 38.45 49722 49.1 18?? 1830 120 2017 11 23 22 13 28 20.060 -19 05 16.59 50630 35.1 20?? 1780 116 2017 11 23 23 14 22 24.666 -24 35 59.62 52619 22.4 23?? 1665 111 2017 11 24 00 15 15 28.693 -28 29 51.06 55506 12.6 27?? 1513 105 2017 11 24 01 16 05 31.250 -30 49 17.45 59074 10.4 29?? 1351 99