"Pseudo-MPEC" for 1964-040A = NORAD 00836 = Vela 2A

Created 2019 Apr 2 1:10:41 UT using Find_Orb

Click here for an explanation of pseudo-MPECs

TLEs are available for this and other objects on these pages. Space-Track is no longer tracking this object. Actually, it's an odd case; they had TLEs up to 1969, then nothing until they briefly provided TLEs in mid-2017, then stopped again.

Click here for a graph of inclination and perigee height from launch in 1964 to a bit into the future. The catalogued initial inclination for 1964-040A (on 1964 July 17) was 39.20 degrees, with a perigee altitude of 102000 km. The match to the plot is quite good. Because of this, and because the elements for mid-2017 match the Space-Track TLEs for that era, I'm confident of this identification.

 
 Astrometry: 
1964-040A     C2010 04 11.15479 11 12 51.94 +42 53 21.8          17.8 V D0341703
1964-040A     C2010 04 11.16091 11 12 52.23 +42 47 48.4          17.9 V D0341703
1964-040A     C2010 04 11.16721 11 12 52.23 +42 41 59.5          17.9 V D0341703
     A108WQL  C2018 10 02+x(QCw$eLRvLEie*cuhw?LMLZX@Z=?ob:sYypAstrometryU%;DjT08
     A108WQL  C2018 10 02y:TO(Qn.1A[kUKqNBf6\:T;9$JstHcM=qEHJ.3li$Fx*=ML^=bxLT08
     A108WQL  C2018 10 02WkP[dJ)(RFyTF%T5KwnKORhXL@@$lQpv24redacted;!oSpapr@$T08
     A108WQL KC2018 10 02-E!!p*S9-ee'+DM6:IN$rE1B;M83mclicktmqPc!].IBi.fEZ@GbK51
     A108WQL KC2018 10 02xs-0;]-i*Idw@:;vw=^9N/%D.9U=)/'xf,UH/?*3;e2deLlt+k(EK51
     A108WQL KC2018 10 02/8Gu0-svKY,Ni%Ns9Cy$U=i[0g!fdl3kgwRaNXtZ`c94\R1[0fSTK51
     A108WQL KC2018 10 02HcriLU(?BM,sZGG8B[x+ufB'wW8=0Fes.kDcNc_!JY[KZMmp%SEkK51
     A108WQL KC2018 10 02uLBR`=d%j\4\'Q0Dk1nJG@^tgTtSEIBVx(s=acyOEZ[U%LAMPBG4595
     A108WQL KC2018 10 02piCpcvp3V8CUtr5%Ke%`F4?LUlwnjn7gTdhheregtZ0).UD,[/eA595
     A108WQL KC2018 10 02/y`[U,7,[T7IMforlgo3aPxE^X\[k)T)bi8oxIb-;e4aR)Nm38L_595
     A108WQL KC2018 10 029.#NTa+bjGR\pXZ@tA5_UP79$+L_wRxjaU?o$W`K/BBBWxQVT'mm595
     A108WQL  C2018 10 02_RsD*LvtgRm\nqmUwWw?y.[o-fKaGs.`%'_/S[^explanationt3L01
     A108WQL  C2018 10 02Q0(#$75h?hwT]*tcEu\S[;4tKBVcC:M%=+q@_j.\xE@r.eGDr]`,L01
     A108WQL  C2018 10 02WeNgNk1Bj:#a1CF+(TPHM_gN)_1CkC.t06euY]fM`M^]M:hUoWvWL01
     A108WQL  C2018 10 02DJ;]6^NYGHC7g?JJ_wdf6G9PiHy.Yu?WZ:6shItkl12e\]$3!DI#L01
     A108WQL  C2018 10 027l_yO@uOTi?M2hG#Z3ioLX\(#,+:`wT9RLhL=k6T#$UZ9hJ97PKtL01
     A108WQL  C2018 10 02XNZci@;CYmo?qsy=0-@4c!'+Ktw!FKZt+w=%l:89d:X542Rx?s2\L01
     A108WQL  C2018 10 02t:hyh?4j4/ufTXAlr+-*@uMs6F_rtS:sBYMV#b?R(F,`AyX`=F5YL01
     A108WQL  C2018 10 02M.IsGBG!6twJHSMdMZlMf,n??tY\tnoHV?u$;w%QqUs/]]\=)c)6L01
     A108WQL  C2018 10 02W#U+\kQ`(-Y#1tTjLF[E0]F5f0?VAveMXVS/=5qPl\KG'+sMfr7_L01

Station data:
(595) Farra d'Isonzo  (N45.915734 E13.525780)  Italy.  Observers L.
   Bittesini, F. Fabris, E. Pettarin, F. Piani. Measurer E. Pettarin. 0.30-m
   f/4.5 reflector + CCD.
(703) Catalina Sky Survey  (N32.417006 W110.732640)  US/Arizona.  Observers
   B. M. Africano, J. D. Ahern, E. C. Beshore, A. Boattini, E. J.
   Christensen, G. A. Farneth, D. C. Fuls, G. J. Garradd, A. R. Gibbs, A. D.
   Grauer, H. Groeller, R. E. Hill, J. A. Johnson, R. A. Kowalski, S. M.
   Larson, G. J. Leonard, R. H. McNaught, R. L. Seaman, F. C. Shelly. 0.68 m
   Schmidt + 4K CCD + 10K CCD.
(K51) Osservatorio del Celado, Castello Tesino  (N46.029412 E11.657900)
   Italy.
(L01) Višnjan Observatory, Tičan  (N45.290900 E13.749300)  Croatia.
   Observers K. Korlević, E. Pettarin. Measurer E. Pettarin. 1.0-m f/2.9
   reflector + CCD.
(T08) ATLAS-MLO, Mauna Loa  (N19.535772 W155.576400)  US/Hawaii.  Observers
   L. Denneau, A. Heinze, H. Weiland, J. Tonry, B. Stalder, A. Sherstyuk, H.
   Flewelling, A. Fitzsimmons, D. Young. Measurers L. Denneau, A. Heinze, J.
   Tonry. 0.5-m f/2.0 Schmidt + CCD.

Orbital elements:  1964-040A = NORAD 00836 = Vela 2A
   Perigee 2018 Oct 4.423908 +/- 9.39e-6 TT = 10:10:25 (JD 2458395.923908)
Epoch 2018 Oct  3.0 TT = JDT 2458394.5                        Gray
M 237.33183417 +/- 0.0008           (J2000 equator)
n  86.14893698 +/- 3.95e-7          Peri.  212.83680 +/- 0.00020
a109589.822 +/- 0.000335            Node   302.14648 +/- 0.00046
e   0.7109033 +/- 5e-6              Incl.   66.32654 +/- 0.00019
P6017.37m/4.179d           H 30.5   G  0.15   U  3.1
q 31682.0490 +/- 0.548    Q 187497.596 +/- 0.548
From 23 observations 2010 Apr. 11-2018 Oct. 2; mean residual 0".449
Residuals in arcseconds: 
100411 703 .202+ .141-    181002 K51 .150+ .105+    181002 L01 .184+ .238-
100411 703 .090- .433-    181002 K51 .217+ .633-    181002 L01 .339+ .781-
100411 703 .121- .602+    181002 595 .667- 1.01+    181002 L01 .161+ .354-
181002 T08 .011- .096+    181002 595 .347- 1.09+    181002 L01 .127+ .529-
181002 T08 7.6m+ .184+    181002 595 .692- .754+    181002 L01 .418+ .424-
181002 T08 .193+ .542-    181002 595 .219+ .916+    181002 L01 .084- .249-
181002 K51 .250+ .661-    181002 L01 .311+ .070-    181002 L01 .070+ .281-
181002 K51 .249- .149+    181002 L01 .144+ .761-

Ephemerides (geocentric):
Date (UTC) HH   RA              Dec         delta  elong  mag " sig PA
---- -- -- --  -------------   -----------  ------ -----  --- ---- ---
2018 10 02 00  20 52 36.012   +23 30 31.88  184151 123.6 18.0 .419 157
2018 10 02 01  20 54 18.691   +24 18 36.61  184940 123.8 18.0 .383 155
2018 10 02 02  20 56 01.843   +25 06 13.93  185623 123.9 18.0 .347 153
2018 10 02 03  20 57 45.629   +25 53 27.24  186199 124.1 18.0 .313 150
2018 10 02 04  20 59 30.209   +26 40 19.79  186671 124.2 18.0 .281 146
2018 10 02 05  21 01 15.752   +27 26 54.71  187037 124.4 18.0 .250 142
2018 10 02 06  21 03 02.426   +28 13 15.02  187298 124.5 18.0 .221 136
2018 10 02 07  21 04 50.408   +28 59 23.67  187455 124.7 18.0 .195 130
2018 10 02 08  21 06 39.881   +29 45 23.54  187507 124.8 18.0 .173 121
2018 10 02 09  21 08 31.039   +30 31 17.44  187455 124.9 18.0 .157 110
2018 10 02 10  21 10 24.084   +31 17 08.16  187299 125.0 18.0 .147  97
2018 10 02 11  21 12 19.230   +32 02 58.46  187037 125.1 18.0 .145  84
2018 10 02 12  21 14 16.707   +32 48 51.11  186672 125.2 17.9 .151  71
2018 10 02 13  21 16 16.761   +33 34 48.85  186201 125.3 17.9 .165  59
2018 10 02 14  21 18 19.657   +34 20 54.45  185624 125.4 17.9 .184  50
2018 10 02 15  21 20 25.681   +35 07 10.73  184941 125.4 17.9 .207  43
2018 10 02 16  21 22 35.145   +35 53 40.53  184152 125.5 17.9 .232  37
2018 10 02 17  21 24 48.390   +36 40 26.76  183255 125.5 17.9 .260  32
2018 10 02 18  21 27 05.790   +37 27 32.38  182250 125.6 17.9 .289  29
2018 10 02 19  21 29 27.757   +38 15 00.46  181136 125.6 17.9 .319  26
2018 10 02 20  21 31 54.749   +39 02 54.16  179911 125.7 17.9 .350  23
2018 10 02 21  21 34 27.273   +39 51 16.74  178574 125.7 17.8 .381  21
2018 10 02 22  21 37 05.899   +40 40 11.60  177125 125.7 17.8 .413  20
2018 10 02 23  21 39 51.265   +41 29 42.27  175562 125.7 17.8 .446  19
2018 10 03 00  21 42 44.090   +42 19 52.43  173882 125.7 17.8 .479  17
2018 10 03 01  21 45 45.191   +43 10 45.95  172085 125.7 17.8 .513  17
2018 10 03 02  21 48 55.499   +44 02 26.84  170168 125.6 17.7 .547  16
2018 10 03 03  21 52 16.078   +44 54 59.33  168130 125.6 17.7 .581  15
2018 10 03 04  21 55 48.156   +45 48 27.80  165968 125.5 17.7 .616  15
2018 10 03 05  21 59 33.153   +46 42 56.85  163679 125.5 17.7 .651  15
2018 10 03 06  22 03 32.724   +47 38 31.22  161261 125.4 17.6 .687  14
2018 10 03 07  22 07 48.809   +48 35 15.81  158711 125.3 17.6 .724  14
2018 10 03 08  22 12 23.696   +49 33 15.57  156026 125.2 17.6 .760  14
2018 10 03 09  22 17 20.103   +50 32 35.46  153202 125.0 17.5 .797  14
2018 10 03 10  22 22 41.284   +51 33 20.28  150236 124.8 17.5 .835  15
2018 10 03 11  22 28 31.160   +52 35 34.44  147124 124.6 17.4 .873  15
2018 10 03 12  22 34 54.496   +53 39 21.61  143860 124.4 17.4 .912  16
2018 10 03 13  22 41 57.130   +54 44 44.19  140440 124.2 17.4 .951  16
2018 10 03 14  22 49 46.272   +55 51 42.47  136860 123.9 17.3 .990  17
2018 10 03 15  22 58 30.898   +57 00 13.45  133112 123.5 17.3 1.03  18
2018 10 03 16  23 08 22.271   +58 10 08.85  129191 123.1 17.2 1.07  19
2018 10 03 17  23 19 34.611   +59 21 12.21  125091 122.7 17.2 1.11  21
2018 10 03 18  23 32 25.941   +60 32 54.34  120802 122.2 17.1 1.15  23
2018 10 03 19  23 47 19.105   +61 44 26.27  116318 121.6 17.0 1.18  25
2018 10 03 20  00 04 42.815   +62 54 28.24  111630 120.9 17.0 1.22  27
2018 10 03 21  00 25 12.369   +64 00 52.97  106728 120.0 16.9 1.25  31
2018 10 03 22  00 49 29.080   +65 00 20.52  101602 119.1 16.8 1.27  34
2018 10 03 23  01 18 16.468   +65 47 42.89   96242 117.9 16.7 1.29  39
2018 10 04 00  01 52 10.074   +66 15 19.46   90638 116.6 16.6 1.30  44
2018 10 04 01  02 31 18.179   +66 12 12.49   84781 114.9 16.5 1.30  49
2018 10 04 02  03 14 57.047   +65 23 43.09   78664 112.9 16.4 1.27  54
2018 10 04 03  04 01 18.321   +63 31 43.17   72287 110.3 16.3 1.22  57
2018 10 04 04  04 47 52.224   +60 14 51.88   65664 107.1 16.2 1.15  53
2018 10 04 05  05 32 23.896   +55 07 14.80   58835 103.0 16.1 1.16  39
2018 10 04 06  06 13 44.048   +47 33 39.59   51895  97.5 16.1 1.51  15
2018 10 04 07  06 52 06.202   +36 41 33.15   45055  90.0 16.0 2.59 177
2018 10 04 08  07 29 07.701   +21 15 30.39   38763  80.1 16.2 4.74 168
2018 10 04 09  08 08 22.718   +00 02 17.77   33876  67.9 16.5 8.11 162
2018 10 04 10  08 58 03.332   -26 04 46.22   31652  57.3 17?? 11.6 155
2018 10 04 11  10 20 33.099   -51 09 39.87   32944  55.1 17?? 12.8 139