"Pseudo-MPEC" for Queqiao-2 = NORAD 39276 = 2024-051A

Created 2024 Mar 23 22:59:04 UT using Find_Orb

Click here for an explanation of pseudo-MPECs

You can click here for a pseudo-MPEC for the Queqiao-2 Tiandu sub-satellite or here for a pseudo-MPEC for the Queqiao-2 booster.

You can find TLEs for all three known Queqiao objects (look for '24051a.tle' = spacecraft, '24051b.tle' = booster, and 'qq2c.tle' = either Tiandu-1 or Tiandu-2, we don't know which one.) You can also get customized ephemerides for any of these objects.

 
 Astrometry: 
     A115fck* C2024 03 21*Gk*6IYG?5hVb,N=lKjEn1FR-SZ5^'iOeYxfP2gIG/%0.'bYL-(7T08
     A115fck  C2024 03 21-ZDao4EPWNkL(A8Ij:XI$NW+6k1xsH+SAstrometryGF5kSl?o]FT08
     A115fck  C2024 03 21QX8R2LVa)wtMOmP[!w[#fM02F%JFV(_0+7CWn*:0[571\AF7r'o^T08
     A115fck  C2024 03 21.%qU+A!;#`LbRo?FSZ04I!y+CyC;[8iqKxFTrInD2Fm+FF?04h24T08
     A115fck  C2024 03 21N/gKJH=$l4)jkOxcSma?mTJnD$4fjnSj?$l\\^KfOo'%N@AvtFjNT05
     A115fck  C2024 03 21jH0ms%FcD$U[an,'CHP$'SS!tOutsIdA?uh85Ux91YT%?5AfZH?3T05
     A115fck  C2024 03 21Imxh5!,1A[S3[hi4\Tm633L5TlIWe7ZXS3Credacted;4-./haC$T05
     A115fck  C2024 03 21*2lf@_VSclickL\B[Nk89(LL6_L3N3A7V\44fF,@?=sly;M(-?AiT05
     A115fck  C2024 03 21Em%_t8ga3$=p9Q69here1wZQ:SCfor9oJAexplanationVC=EBd%T05
       QQ-2B KB2024 03 22.15271 11 39 22.073-01 46 15.35         13.6 RZ     H36
       QQ-2B KB2024 03 22.15412 11 39 21.571-01 46 07.07         13.6 RZ     H36
       QQ-2B KB2024 03 22.15545 11 39 21.096-01 45 59.26         13.6 RZ     H36
       QQ-2B KB2024 03 22.17271 11 39 14.198-01 44 20.08         13.6 RZ     H36
       QQ-2B KB2024 03 22.17377 11 39 13.721-01 44 14.03         13.5 RZ     H36
       QQ-2B KB2024 03 22.17484 11 39 13.255-01 44 07.91         13.6 RZ     H36
       QQ-2B  C2024 03 22.17755 11 40 08.43 -01 36 43.3          13.7 GU     V16
       QQ-2B  C2024 03 22.18030 11 40 07.34 -01 36 28.0          13.7 GU     V16
       QQ-2B  C2024 03 22.18331 11 40 06.10 -01 36 11.4          13.7 GU     V16
       QQ-2B  C2024 03 22.18631 11 40 04.82 -01 35 54.5          13.7 GU     V16
       QQ-2B  C2024 03 22.18933 11 40 03.46 -01 35 38.0          13.7 GU     V16
       QQ-2B  C2024 03 22.27991 11 39 17.90 -01 35 35.6          13.9   MPML 718
       QQ-2B  C2024 03 22.28065 11 39 17.49 -01 35 31.4          13.8   MPML 718
       QQ-2B  C2024 03 22.28178 11 39 16.87 -01 35 24.9          13.8   MPML 718
       QQ-2B  C2024 03 22.28234 11 39 16.55 -01 35 21.6          13.8   MPML 718
       QQ-2B  CK240322:2144051  176.87900   -00.80535            14.2 GV     J69
       QQ-2B  CK240322:2149193  176.87502   -00.80054            14.2 GV     J69
       QQ-2B  CK240322:2155299  176.87018   -00.79495            14.3 GV     J69
       QQ-2B  CK240322:2201191  176.86524   -00.78958            14.2 GV     J69
       QQ-2B  CK240322:2207074  176.86029   -00.78424            14.2 GV     J69
       QQ-2B  CK240322:2212560  176.85503   -00.77903            14.2 GV     J69

Station data:
(718) Tooele  (N40.641406 W112.295800)  US/Utah.  Observer P. Wiggins. 0.35-m
   f/5.5 Schmidt-Cassegrain + CCD.
(H36) Sandlot Observatory, Scranton  (N38.797700 W95.706554)  US/Kansas.
   Observer G. Hug. 0.56-m reflector + CCD.
(J69) North Observatory, Clanfield  (N50.939017 W1.019656)  UK/England.
   Observer D. Briggs. 0.41-m f/4.5 Newtonian reflector + CCD.
(T05) ATLAS-HKO, Haleakala  (N20.707582 W156.257008)  US/Hawaii.  Observers
   L. Denneau, A. Heinze, H. Weiland, J. Tonry, H. Flewelling, A.
   Fitzsimmons, D. Young, B. Stalder. Measurers L. Denneau, A. Heinze, J.
   Tonry. 0.5-m f/2.0 Schmidt + CCD.
(T08) ATLAS-MLO, Mauna Loa  (N19.536150 W155.576050)  US/Hawaii.  Observers
   L. Denneau, A. Heinze, H. Weiland, J. Tonry, H. Flewelling, A.
   Fitzsimmons, D. Young, B. Stalder. Measurers L. Denneau, A. Heinze, J.
   Tonry. 0.5-m f/2.0 Schmidt + CCD.
(V16) Dark Sky New Mexico, Animas  (N31.946942 W108.897120)  US/New Mexico.
   Observer D. Crowson. 0.30-m f/8.0 Ritchey-Chrétien + CCD.

Orbital elements:  Queqiao-2 = NORAD 39276 = 2024-051A
   Perigee 2024 Mar 20.036121 +/- 9.52e-5 TT =  0:52:00.8 (JD 2460389.536121)
Epoch 2024 Mar 20.0 TT = JDT 2460389.5                           Find_Orb
M 358.810529638 +/- 0.0033          (J2000 equator)
n  32.930012330 +/- 0.00936         Peri.  185.574898 +/- 0.0021
a208069.7333 +/- 39.4               Node   177.108381 +/- 0.00012
e   0.96826573 +/- 1.97e-6          Incl.   21.976478 +/- 0.0006
P  10.9321d                H 27.14  G  0.15   U  9.6
q 6602.940417 +/- 1.62    Q 409536.5263 +/- 77.3
From 30 observations 2024 Mar. 21-22 (36.2 hr); mean residual 0".185

Orbital elements:  Queqiao-2 = NORAD 39276 = 2024-051A (lunar arrival)
   Perilune 2024 Mar 24.706104 +/- 1.76e-5 TT = 16:56:47.3 (JD 2460394.206104)
Epoch 2024 Mar 24.7 TT = JDT 2460394.2                           Find_Orb
q  1946.940768 +/- 8.95             (J2000 ecliptic)
H   27.14 G 0.15                    Peri.  125.754612 +/- 0.11
                                    Node   274.263313 +/- 0.13
e   1.29051576 +/- 0.00136          Incl.  107.325122 +/- 0.53
From 30 observations 2024 Mar. 21-22 (36.2 hr); mean residual 0".185
Residuals in arcseconds: 
240321 T08 .118+ .036-    240322 H36 .401- .094+    240322 718 .037- .416+
240321 T08 .130+ .038-    240322 H36 .401- .280+    240322 718 .009+ .334+
240321 T08 .107+ .006+    240322 H36 .095+ .241+    240322 718 .181+ .293+
240321 T08 .103+ .006-    240322 H36 .028- .180+    240322 718 .080+ .350+
240321 T05 .153- .156-    240322 H36 .150+ .130+    240322 J69 .126+ .084+
240321 T05 .134+ .039-    240322 V16 .182+ .217-    240322 J69 .045+ .124+
240321 T05 .182- .171-    240322 V16 .046+ .122-    240322 J69 .230+ .140-
240321 T05 .141- .121-    240322 V16 .018- .180-    240322 J69 .200- .030-
240321 T05 .060- .211-    240322 V16 .057+ .100+    240322 J69 .013- .011+
240322 H36 .277- .107-    240322 V16 .155- .147-    240322 J69 .264- .444-

Ephemerides (geocentric):
Date (UTC) HH   RA             Dec           delta elong  mag  LuElo " sig PA
---- --------  ------------   ------------  ------ -----  ---  ----- --------
2024 03 20 01  03 07 42.601   -17 08 59.96    7784  49.6 11??   87.5 1244 104
2024 03 20 02  08 22 50.402   -17 28 21.74   25803 124.1 10.3   41.9 91.0  76
2024 03 20 03  09 18 29.348   -13 45 27.42   40803 138.0 11.0   40.0 29.6  71
2024 03 20 04  09 44 47.751   -11 40 00.92   53608 144.7 11.4   40.2 13.9  68
2024 03 20 05  10 01 08.222   -10 16 26.11   65022 148.9 11.7   40.6 7.57  66
2024 03 20 06  10 12 40.339   -09 15 05.59   75446 151.9 11.9   40.9 4.42  63
2024 03 20 07  10 21 26.658   -08 27 15.61   85112 154.2 12.1   41.1 2.66  59
2024 03 20 08  10 28 26.887   -07 48 23.30   94170 156.0 12.3   41.3 1.60  54
2024 03 20 09  10 34 14.145   -07 15 50.40  102724 157.5 12.4   41.4 .934  45
2024 03 20 10  10 39 08.526   -06 47 57.78  110849 158.8 12.5   41.4 .528  28
2024 03 20 11  10 43 23.053   -06 23 39.60  118602 159.8 12.6   41.4 .324 176
2024 03 20 12  10 47 06.597   -06 02 10.13  126028 160.8 12.7   41.3 .299 137
2024 03 20 13  10 50 25.450   -05 42 56.44  133161 161.7 12.8   41.2 .354 114
2024 03 20 14  10 53 24.221   -05 25 34.10  140031 162.4 12.9   41.0 .413 102
2024 03 20 15  10 56 06.378   -05 09 44.50  146662 163.1 13.0   40.9 .456  95
2024 03 20 16  10 58 34.589   -04 55 13.20  153074 163.7 13.1   40.7 .483  91
2024 03 20 17  11 00 50.947   -04 41 48.79  159285 164.3 13.1   40.5 .497  87
2024 03 20 18  11 02 57.121   -04 29 22.09  165308 164.8 13.2   40.2 .500  85
2024 03 20 19  11 04 54.463   -04 17 45.62  171157 165.3 13.3   40.0 .496  83
2024 03 20 20  11 06 44.080   -04 06 53.22  176843 165.8 13.3   39.7 .486  82
2024 03 20 21  11 08 26.890   -03 56 39.75  182377 166.2 13.4   39.5 .471  80
2024 03 20 22  11 10 03.663   -03 47 00.90  187766 166.6 13.4   39.2 .453  79
2024 03 20 23  11 11 35.048   -03 37 52.99  193019 167.0 13.5   38.9 .433  78
2024 03 21 00  11 13 01.598   -03 29 12.90  198143 167.3 13.5   38.6 .412  76
2024 03 21 01  11 14 23.789   -03 20 57.91  203144 167.7 13.5   38.3 .389  75
2024 03 21 02  11 15 42.031   -03 13 05.69  208028 168.0 13.6   38.0 .366  74
2024 03 21 03  11 16 56.681   -03 05 34.18  212800 168.3 13.6   37.7 .343  72
2024 03 21 04  11 18 08.052   -02 58 21.60  217466 168.6 13.7   37.3 .320  71
2024 03 21 05  11 19 16.418   -02 51 26.35  222029 168.8 13.7   37.0 .298  69
2024 03 21 06  11 20 22.022   -02 44 47.05  226493 169.1 13.7   36.7 .276  67
2024 03 21 07  11 21 25.079   -02 38 22.43  230863 169.3 13.8   36.3 .254  65
2024 03 21 08  11 22 25.780   -02 32 11.39  235142 169.6 13.8   36.0 .234  63
2024 03 21 09  11 23 24.298   -02 26 12.92  239332 169.8 13.8   35.6 .215  60
2024 03 21 10  11 24 20.786   -02 20 26.12  243437 170.0 13.8   35.2 .196  57
2024 03 21 11  11 25 15.383   -02 14 50.18  247461 170.2 13.9   34.9 .179  54
2024 03 21 12  11 26 08.214   -02 09 24.36  251404 170.4 13.9   34.5 .164  50
2024 03 21 13  11 26 59.393   -02 04 07.98  255270 170.6 13.9   34.1 .150  45
2024 03 21 14  11 27 49.024   -01 59 00.44  259062 170.8 13.9   33.8 .138  39
2024 03 21 15  11 28 37.200   -01 54 01.18  262780 171.0 14.0   33.4 .129  33
2024 03 21 16  11 29 24.008   -01 49 09.67  266427 171.2 14.0   33.0 .121  27
2024 03 21 17  11 30 09.526   -01 44 25.46  270006 171.3 14.0   32.6 .115  20
2024 03 21 18  11 30 53.826   -01 39 48.10  273517 171.5 14.0   32.2 .112  13
2024 03 21 19  11 31 36.976   -01 35 17.19  276963 171.6 14.1   31.8 .111   6
2024 03 21 20  11 32 19.036   -01 30 52.36  280345 171.8 14.1   31.4 .111 179
2024 03 21 21  11 33 00.063   -01 26 33.26  283665 171.9 14.1   31.0 .114 173
2024 03 21 22  11 33 40.110   -01 22 19.58  286924 172.1 14.1   30.7 .117 167
2024 03 21 23  11 34 19.224   -01 18 11.01  290123 172.2 14.1   30.3 .121 163
2024 03 22 00  11 34 57.451   -01 14 07.28  293263 172.3 14.2   29.9 .126 159
2024 03 22 01  11 35 34.832   -01 10 08.12  296347 172.4 14.2   29.4 .132 156
2024 03 22 02  11 36 11.406   -01 06 13.28  299375 172.6 14.2   29.0 .137 153
2024 03 22 03  11 36 47.210   -01 02 22.55  302347 172.7 14.2   28.6 .143 151
2024 03 22 04  11 37 22.276   -00 58 35.69  305267 172.8 14.2   28.2 .149 149
2024 03 22 05  11 37 56.637   -00 54 52.51  308133 172.9 14.2   27.8 .154 148
2024 03 22 06  11 38 30.322   -00 51 12.81  310948 173.0 14.2   27.4 .159 147
2024 03 22 07  11 39 03.359   -00 47 36.42  313711 173.1 14.3   27.0 .165 146
2024 03 22 08  11 39 35.772   -00 44 03.14  316425 173.2 14.3   26.6 .169 146
2024 03 22 09  11 40 07.587   -00 40 32.83  319090 173.3 14.3   26.2 .174 146
2024 03 22 10  11 40 38.825   -00 37 05.32  321706 173.4 14.3   25.7 .179 146
2024 03 22 11  11 41 09.508   -00 33 40.47  324275 173.5 14.3   25.3 .183 146
2024 03 22 12  11 41 39.655   -00 30 18.12  326797 173.6 14.3   24.9 .187 147
2024 03 22 13  11 42 09.286   -00 26 58.15  329273 173.6 14.3   24.5 .191 147
2024 03 22 14  11 42 38.417   -00 23 40.42  331704 173.7 14.4   24.1 .194 148
2024 03 22 15  11 43 07.064   -00 20 24.79  334090 173.8 14.4   23.6 .198 149
2024 03 22 16  11 43 35.244   -00 17 11.16  336432 173.9 14.4   23.2 .202 151
2024 03 22 17  11 44 02.970   -00 13 59.39  338730 173.9 14.4   22.8 .205 152
2024 03 22 18  11 44 30.255   -00 10 49.37  340986 174.0 14.4   22.4 .208 153
2024 03 22 19  11 44 57.112   -00 07 41.00  343199 174.1 14.4   21.9 .212 155
2024 03 22 20  11 45 23.553   -00 04 34.15  345370 174.1 14.4   21.5 .216 157
2024 03 22 21  11 45 49.588   -00 01 28.73  347501 174.2 14.4   21.1 .219 159
2024 03 22 22  11 46 15.227   +00 01 35.38  349590 174.2 14.4   20.6 .223 161
2024 03 22 23  11 46 40.479   +00 04 38.28  351640 174.3 14.5   20.2 .228 163
2024 03 23 00  11 47 05.353   +00 07 40.07  353650 174.3 14.5   19.8 .232 165
2024 03 23 01  11 47 29.856   +00 10 40.86  355620 174.4 14.5   19.3 .237 167
2024 03 23 02  11 47 53.996   +00 13 40.75  357552 174.4 14.5   18.9 .243 170
2024 03 23 03  11 48 17.778   +00 16 39.85  359446 174.5 14.5   18.5 .249 172
2024 03 23 04  11 48 41.207   +00 19 38.24  361301 174.5 14.5   18.0 .255 174
2024 03 23 05  11 49 04.290   +00 22 36.05  363119 174.6 14.5   17.6 .262 177
2024 03 23 06  11 49 27.028   +00 25 33.38  364900 174.6 14.5   17.1 .270 179
2024 03 23 07  11 49 49.427   +00 28 30.33  366644 174.6 14.5   16.7 .278   2
2024 03 23 08  11 50 11.487   +00 31 27.01  368352 174.7 14.5   16.3 .287   4
2024 03 23 09  11 50 33.211   +00 34 23.54  370024 174.7 14.5   15.8 .297   6
2024 03 23 10  11 50 54.599   +00 37 20.04  371660 174.7 14.6   15.4 .307   9
2024 03 23 11  11 51 15.650   +00 40 16.63  373261 174.8 14.6   14.9 .318  11
2024 03 23 12  11 51 36.364   +00 43 13.44  374827 174.8 14.6   14.5 .330  13
2024 03 23 13  11 51 56.737   +00 46 10.60  376358 174.8 14.6   14.0 .343  15
2024 03 23 14  11 52 16.767   +00 49 08.25  377855 174.8 14.6   13.6 .357  18
2024 03 23 15  11 52 36.448   +00 52 06.55  379319 174.8 14.6   13.1 .371  20
2024 03 23 16  11 52 55.773   +00 55 05.65  380748 174.8 14.6   12.7 .386  22
2024 03 23 17  11 53 14.735   +00 58 05.74  382145 174.8 14.6   12.2 .403  24
2024 03 23 18  11 53 33.322   +01 01 07.00  383508 174.8 14.6   11.8 .419  26
2024 03 23 19  11 53 51.524   +01 04 09.64  384839 174.9 14.6   11.3 .437  27
2024 03 23 20  11 54 09.324   +01 07 13.88  386138 174.9 14.6   10.9 .456  29
2024 03 23 21  11 54 26.706   +01 10 19.97  387404 174.8 14.6   10.4 .475  31
2024 03 23 22  11 54 43.647   +01 13 28.19  388639 174.8 14.6    9.9 .495  33
2024 03 23 23  11 55 00.122   +01 16 38.85  389843 174.8 14.7    9.5 .517  35
2024 03 24 00  11 55 16.102   +01 19 52.31  391016 174.8 14.7    9.0 .539  36
2024 03 24 01  11 55 31.548   +01 23 08.97  392159 174.8 14.7    8.5 .562  38
2024 03 24 02  11 55 46.417   +01 26 29.29  393271 174.8 14.7    8.1 .586  40
2024 03 24 03  11 56 00.654   +01 29 53.81  394354 174.8 14.7    7.6 .612  42
2024 03 24 04  11 56 14.195   +01 33 23.16  395408 174.7 14.7    7.1 .638  44
2024 03 24 05  11 56 26.957   +01 36 58.10  396433 174.7 14.7    6.6 .667  46
2024 03 24 06  11 56 38.838   +01 40 39.55  397430 174.7 14.7    6.2 .697  48
2024 03 24 07  11 56 49.706   +01 44 28.62  398400 174.6 14.7    5.7 .731  51
2024 03 24 08  11 56 59.392   +01 48 26.71  399344 174.6 14.7    5.2 .767  53
2024 03 24 09  11 57 07.669   +01 52 35.59  400262 174.5 14.7    4.7 .809  56
2024 03 24 10  11 57 14.223   +01 56 57.59  401157 174.5 14.7    4.2 .858  60
2024 03 24 11  11 57 18.609   +02 01 35.84  402030 174.4 14.7    3.7 .920  64
2024 03 24 12  11 57 20.153   +02 06 34.68  402883 174.3 14.8    3.1 1.00  69
2024 03 24 13  11 57 17.767   +02 12 00.46  403720 174.2 14.8    2.6 1.12  75
2024 03 24 14  11 57 09.499   +02 18 02.84  404545 174.1 14.8    2.0 1.31  81
2024 03 24 15  11 56 51.214   +02 24 57.03  405365 173.9 14.8    1.4 1.64  89
2024 03 24 16  11 56 10.917   +02 32 58.99  406180 173.6 14.8   0.80 2.35  96
2024 03 24 17  11 54 08.334   +02 31 42.53  406483 173.2 14.8   0.28 3.37 170
2024 03 24 18  11 53 10.201   +01 42 16.70  404804 173.4 14.8   0.90 22.0 166
2024 03 24 19  11 53 22.953   +00 54 59.90  403336 173.8 14.8    1.5 34.1 161
2024 03 24 20  11 53 51.704   +00 10 12.44  402032 174.2 14.8    2.1 43.9 159
2024 03 24 21  11 54 27.758   -00 33 13.81  400832 174.5 14.7    2.6 52.6 158
2024 03 24 22  11 55 08.140   -01 15 50.54  399708 174.7 14.7    3.2 60.4 156
2024 03 24 23  11 55 51.464   -01 57 54.93  398645 174.9 14.7    3.7 67.4 156
2024 03 25 00  11 56 36.970   -02 39 37.30  397634 175.0 14.7    4.2 73.9 155

   RA/decs are astrometric J2000 coordinates (corrected for light
time lag,  but in the inertial J2000 frame,  i.e.,  not rotated
for precession or nutation,  and differential light deflection is
not included.)   Display can be turned on/off in the 'advanced
options' for ephemerides.  When turning them on,  you can select
from various format choices (base-60,  decimal, different
precisions,  etc.)

   Distances are in kilometers for distances under one million km
(about 0.00668 AU),  and in AUs for larger distances.

   Uncertainties are one-sigma values shown in arcseconds (unless they
are very large, in which case they are shown in arcminutes or degrees).
In theory,  the object should be within this distance of the nominal
RA/dec 67% of the time,  within twice that distance 95% of the time,
and within three times that distance 99.7% of the time.  In practice,
astrometric errors are not actually Gaussian,  which means these
uncertainties are sometimes over- or underestimated.  So you may have
to look farther,  or not nearly as far,  as the uncertainties say.

   The object will probably be offset from nominal somewhere along the
indicated position angle,  especially if the orbit is well determined.