"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.