"Pseudo-MPEC" for 2022-168A = NORAD 54696 = Hakuto-R
Created 2023 Mar 5 23:57:08 UT using Find_Orb
Click here for an explanation of pseudo-MPECs
Some discussion of this object occurred on MPML (see some of the preceding messages as well). Also, Edgar Kaiser has observed radio data from Hakuto-R.
Astrometry:
C3L0GC1*1C2023 03 01.27187211 00 50.044+13 41 27.67 ~31CI 18.68GVNEOCP703
C3L0GC1 1C2023 03 01.27718911 00 52.513+13 40 56.82 ~31CI 18.67GVNEOCP703
C3L0GC1 1C2023 03 01.28156011 00 54.601+13 40 30.90 ~31CI 18.56GVNEOCPG96
C3L0GC1 1C2023 03 01.28710311 00 57.132+13 39 58.57 ~31CI 17.17GVNEOCPG96
C3L0GC1 1C2023 03 01.28784911 00 57.406+13 39 54.72 ~31CI VNEOCP703
C3L0GC1 1C2023 03 01.29172911 00 59.224+13 39 31.07 ~31CI 18.65GVNEOCPG96
C3L0GC1 1C2023 03 01.29264911 00 59.634+13 39 25.60 ~31CI 18.57GVNEOCPG96
C3L0GC1 1C2023 03 01.29727711 01 01.697+13 38 57.77 ~31CI 18.96GVNEOCPG96
C3L0GC1 1C2023 03 01.29819311 01 02.114+13 38 52.22 ~31CI 18.89GVNEOCPG96
C3L0GC1 1C2023 03 01.30282311 01 04.156+13 38 23.93 ~31CI 19.10GVNEOCPG96
C3L0GC1 mC2023 03 01.38046811 01 38.536+13 29 45.13 ~31CI 19.06GVNEOCPV06
C3L0GC1 mC2023 03 01.38065911 01 38.611+13 29 43.76 ~31CI 18.93GVNEOCPV06
C3L0GC1 mC2023 03 01.38085411 01 38.723+13 29 42.40 ~31CI 19.25GVNEOCPV06
C3L0GC1 mC2023 03 01.38105011 01 38.809+13 29 40.42 ~31CI 19.11GVNEOCPV06
C3L0GC1 KC2023 03 01lQHIeGB=P!c)#WnXI,\iyk]Ppgo?(a]Zc`ye)p;^3oA7jI)v+sOvG34
C3L0GC1 KC2023 03 01V%FwteZ6nScmF=3*Q\hbp7lFv?vMu!MMAstrometryvm-fo!?2H^G34
C3L0GC1 KC2023 03 01XeK=.C^redacted;pmO9[5-1kZ^A'k-QFLcndBYj9Px\hH)revxFG34
C3L0GC1 KC2023 03 01.89291111 12 15.516+12 22 55.57 19.23G K80
C3L0GC1 KC2023 03 012_1W?ox!:+R`1;TP7h@Prf`@I2click+Fd,2I=iC3gDMLvh77BA)J57
C3L0GC1 KC2023 03 01daYhere\YwI/for_otk'C/Jfv70#=`kUxhv[R8:5qn2Ku1goImesJ57
C3L0GC1 KC2023 03 013aeD?(^explanation076xhqQf@QZ,WR'htwDCDdW%[!Dd:/UP-CJ57
C3L0GC1 KC2023 03 01.96069011 13 01.324+12 15 33.48 19.60G K80
C3L0GC1 1C2023 03 01.96658211 13 39.146+12 21 14.48 18.7 GV Z84
C3L0GC1 1C2023 03 01.96702611 13 39.424+12 21 11.85 18.7 GV Z84
C3L0GC1 1C2023 03 01.96746811 13 39.661+12 21 09.09 19.1 GV Z84
Station data:
(703) Catalina Sky Survey (N32.417003 W110.732640) US/Arizona. Observer R.
A. Kowalski. Measurers E. J. Christensen, D. Fay, J. B. Fazekas, D. C.
Fuls, A. R. Gibbs, A. D. Grauer, H. Gröller, J. K. Hogan, R. A. Kowalski,
S. M. Larson, G. J. Leonard, D. Rankin, R. L. Seaman, A. Serrano, F. C.
Shelly, K. W. Wierzchoś. 0.68-m Schmidt + 10K CCD.
(G34) Oberfrauendorf (N50.860289 E13.701403) Germany. Observer T. Felber.
0.35-m f/6.3 Schmidt-Cassegrain + CCD.
(G96) Mt. Lemmon Survey (N32.442751 W110.788720) US/Arizona. Observer K.
W. Wierzchoś. Measurers E. J. Christensen, D. Fay, J. B. Fazekas, D. C.
Fuls, A. R. Gibbs, A. D. Grauer, H. Gröller, J. K. Hogan, R. A. Kowalski,
S. M. Larson, G. J. Leonard, D. Rankin, R. L. Seaman, A. Serrano, F. C.
Shelly, K. W. Wierzchoś. 1.5-m reflector + 10K CCD.
(J57) Centro Astronómico Alto Turia, Valencia (N39.950156 W1.109110) Spain.
Observer A. Fornas. Measurers E. Arce, V. Mas, G. Fornas. 0.43-m f/6.8
reflector + CCD.
(K80) Platanus Observatory, Lusówko (N52.442298 E16.637330) Poland.
Observer T. Kluwak. 0.28-m f/2.2 Schmidt astrograph + CCD.
(V06) Catalina Sky Survey-Kuiper (N32.416844 W110.732550) US/Arizona.
Observers T. A. Pruyne, B. M. Africano, E. J. Christensen, G. A. Farneth,
D. C. Fuls, A. R. Gibbs, A. D. Grauer, H. Gröller, J. A. Johnson, R. A.
Kowalski, S. M. Larson, G. J. Leonard, D. Rankin, R. L. Seaman, F. C.
Shelly, K. W. Wierzchoś. 1.55-m reflector + CCD.
(Z84) Calar Alto-Schmidt (N37.223981 W2.548143) Spain. Observer M. Micheli.
Measurers E. Schwab, D. Koschny, M. Micheli. 0.8-m f/3 Schmidt + CCD.
Orbital elements: 2022-168A = NORAD 54696 = Hakuto-R
Perigee 2023 Mar 13.764954 +/- 0.0414 TT = 18:21:32.0 (JD 2460017.264954)
Epoch 2023 Mar 2.0 TT = JDT 2460005.5 Find_Orb
M 312.460685608 +/- 0.44 (J2000 equator)
n 4.040756489 +/- 0.0234 Peri. 246.336613 +/- 0.14
a842613.4492 +/- 3254 Node 15.559340 +/- 0.0013
e 0.42456505 +/- 0.00317 Incl. 25.922674 +/- 0.0009
P 89.09d H 30.15 G 0.15 U 10.2
q 484869.2213 +/- 1e+3 Q 0.008023895 +/- 4.85e-5
From 25 observations 2023 Mar. 1 (16.7 hr); mean residual 0".250
Orbital elements (lunar approach): 2022-168A = NORAD 54696 = Hakuto-R
Perilune 2023 Mar 21.071574 +/- 0.262 TT = 1:43:03.9 (JD 2460024.571574)
Epoch 2023 Mar 21.0 TT = JDT 2460024.5 Find_Orb
M 354.952834154 +/- 18 (J2000 ecliptic)
n 70.517009516 +/- 0.944 Peri. 22.302432 +/- 1.9
a 28909.66464 +/- 258 Node 148.879857 +/- 2.9
e 0.93580802 +/- 0.0117 Incl. 91.523357 +/- 3.4
P7351.28m/5.105d H 30.15 G 0.15 U 12.7
q 1855.768468 +/- 354 Q 55963.56082 +/- 186
From 25 observations 2023 Mar. 1 (16.7 hr); mean residual 0".250
Residuals in arcseconds: 230301 703 .168+ .020- 230301 G96 .047- .049+ 230301 J57 .696+ .057- 230301 703 4.6m- .405- 230301 V06 .050+ .257+ 230301 J57 .236- .033+ 230301 G96 .242- .109- 230301 V06 .174- .271+ 230301 J57 .532+ .274+ 230301 G96 .165- .077+ 230301 V06 .114+ .324+ 230301 K80 .039+ .268+ 230301 703 .256+ .224- 230301 V06 .015+ .235- 230301 Z84 .555- .275- 230301 G96 .064- .050+ 230301 G34 3.7m- .773- 230301 Z84 .105- .133- 230301 G96 .099- .080+ 230301 G34 .194- .267+ 230301 Z84 .235- .131- 230301 G96 .120- .103+ 230301 G34 .122- .024+ 230301 G96 .030+ .103+ 230301 K80 .191+ .286+ Ephemerides (geocentric): Date (UTC) RA Dec delta elong mag LuElo Con " sig PA ---- ----- ------------ ------------ ------ ----- --- ----- --- -------- 2023 01 02 05 05 42.096 +18 17 32.18 .00820 155.7 20.8 31.5 Tau 3164 75 2023 01 03 05 07 37.105 +18 31 28.10 .00833 155.2 20.9 20.1 Tau 3031 75 2023 01 04 05 09 34.833 +18 45 11.72 .00844 154.7 20.9 10.1 Tau 2907 76 2023 01 05 05 11 35.141 +18 58 43.50 .00855 154.2 21.0 8.3 Tau 2790 76 2023 01 06 05 13 37.905 +19 12 03.95 .00864 153.7 21.0 17.4 Tau 2679 76 2023 01 07 05 15 43.013 +19 25 13.55 .00873 153.2 21.0 28.1 Tau 2575 77 2023 01 08 05 17 50.371 +19 38 12.82 .00881 152.8 21.1 39.2 Tau 2476 77 2023 01 09 05 19 59.908 +19 51 02.34 .00887 152.3 21.1 50.3 Tau 2383 77 2023 01 10 05 22 11.592 +20 03 42.75 .00894 151.8 21.1 61.5 Tau 2294 78 2023 01 11 05 24 25.437 +20 16 14.77 .00899 151.4 21.2 72.7 Tau 2209 78 2023 01 12 05 26 41.513 +20 28 39.18 .00904 150.9 21.2 84.1 Tau 2128 78 2023 01 13 05 28 59.952 +20 40 56.80 .00908 150.4 21.2 95.6 Tau 2050 79 2023 01 14 05 31 20.961 +20 53 08.49 .00911 150.0 21.2 107.3 Tau 1976 79 2023 01 15 05 33 44.823 +21 05 15.14 .00914 149.6 21.2 119.3 Tau 1905 79 2023 01 16 05 36 11.920 +21 17 17.59 .00916 149.1 21.3 131.7 Tau 1836 80 2023 01 17 05 38 42.738 +21 29 16.67 .00918 148.7 21.3 144.4 Tau 1769 80 2023 01 18 05 41 17.886 +21 41 13.07 .00919 148.3 21.3 157.5 Tau 1705 80 2023 01 19 05 43 58.100 +21 53 07.33 .00920 147.9 21.3 170.4 Tau 1642 81 2023 01 20 05 46 44.236 +22 04 59.65 .00920 147.6 21.3 172.2 Tau 1581 81 2023 01 21 05 49 37.239 +22 16 49.83 .00920 147.2 21.3 158.9 Ori 1521 81 2023 01 22 05 52 38.086 +22 28 37.10 .00920 146.9 21.3 144.6 Ori 1462 82 2023 01 23 05 55 47.717 +22 40 20.05 .00919 146.6 21.3 130.2 Ori 1405 82 2023 01 24 05 59 06.961 +22 51 56.66 .00917 146.4 21.3 116.0 Tau 1349 83 2023 01 25 06 02 36.494 +23 03 24.35 .00915 146.2 21.3 102.1 Gem 1294 83 2023 01 26 06 06 16.823 +23 14 40.10 .00913 146.0 21.3 88.7 Gem 1240 83 2023 01 27 06 10 08.303 +23 25 40.61 .00910 145.9 21.3 75.8 Gem 1187 84 2023 01 28 06 14 11.174 +23 36 22.42 .00907 145.8 21.3 63.4 Gem 1136 84 2023 01 29 06 18 25.600 +23 46 41.96 .00902 145.7 21.3 51.5 Gem 1086 85 2023 01 30 06 22 51.706 +23 56 35.57 .00898 145.7 21.3 40.0 Gem 1037 85 2023 01 31 06 27 29.611 +24 05 59.55 .00892 145.8 21.3 28.8 Gem 989 86 2023 02 01 06 32 19.443 +24 14 50.10 .00886 145.8 21.3 17.9 Gem 942 86 2023 02 02 06 37 21.367 +24 23 03.27 .00879 145.9 21.3 7.5 Gem 896 87 2023 02 03 06 42 35.584 +24 30 34.94 .00872 146.1 21.2 4.9 Gem 851 87 2023 02 04 06 48 02.342 +24 37 20.75 .00864 146.3 21.2 14.8 Gem 808 88 2023 02 05 06 53 41.932 +24 43 16.06 .00855 146.6 21.2 25.2 Gem 765 89 2023 02 06 06 59 34.687 +24 48 15.86 .00845 146.8 21.2 35.6 Gem 723 89 2023 02 07 07 05 40.988 +24 52 14.74 .00835 147.2 21.1 46.2 Gem 682 90 2023 02 08 07 12 01.273 +24 55 06.84 .00825 147.6 21.1 56.7 Gem 642 91 2023 02 09 07 18 36.050 +24 56 45.69 .00813 148.0 21.0 67.3 Gem 602 91 2023 02 10 07 25 25.913 +24 57 04.14 .00802 148.5 21.0 78.1 Gem 563 92 2023 02 11 07 32 31.562 +24 55 54.18 .00789 149.1 20.9 88.9 Gem 525 93 2023 02 12 07 39 53.813 +24 53 06.77 .00776 149.7 20.9 100.0 Gem 487 94 2023 02 13 07 47 33.623 +24 48 31.59 .00763 150.4 20.8 111.2 Gem 450 95 2023 02 14 07 55 32.110 +24 41 56.78 .00749 151.2 20.8 122.8 Gem 413 95 2023 02 15 08 03 50.575 +24 33 08.63 .00735 152.0 20.7 134.6 Cnc 377 96 2023 02 16 08 12 30.532 +24 21 51.13 .00721 152.9 20.6 146.8 Cnc 342 97 2023 02 17 08 21 33.729 +24 07 45.58 .00706 153.9 20.6 159.3 Cnc 307 98 2023 02 18 08 31 02.157 +23 50 30.09 .00690 155.0 20.5 172.0 Cnc 273 99 2023 02 19 08 40 58.042 +23 29 39.15 .00675 156.2 20.4 175.2 Cnc 239 100 2023 02 20 08 51 23.815 +23 04 43.28 985456 157.6 20.3 162.4 Cnc 206 101 2023 02 21 09 02 22.063 +22 35 08.83 961127 159.0 20.2 149.9 Cnc 175 103 2023 02 22 09 13 55.477 +22 00 17.84 936331 160.6 20.1 137.8 Cnc 144 104 2023 02 23 09 26 06.825 +21 19 27.95 911065 162.4 20.0 126.3 Leo 115 105 2023 02 24 09 38 58.957 +20 31 52.29 885334 164.3 19.9 115.4 Leo 87.8 106 2023 02 25 09 52 34.853 +19 36 39.33 859148 166.3 19.7 105.2 Leo 62.9 107 2023 02 26 10 06 57.704 +18 32 52.61 832535 168.4 19.6 95.7 Leo 41.0 109 2023 02 27 10 22 11.022 +17 19 30.68 805537 170.5 19.4 86.8 Leo 22.8 110 2023 02 28 10 38 18.774 +15 55 27.23 778216 172.3 19.3 78.6 Leo 9.16 112 2023 03 01 10 55 25.553 +14 19 31.62 750655 173.1 19.2 71.0 Leo 1.22 120 2023 03 02 11 13 36.772 +12 30 30.30 722962 172.2 19.1 63.8 Leo .342 130 2023 03 03 11 32 58.922 +10 27 09.39 695272 169.6 19.1 57.2 Leo 8.15 114 2023 03 04 11 53 39.873 +08 08 19.09 667750 165.8 19.2 51.0 Vir 26.6 115 2023 03 05 12 15 49.255 +05 33 00.93 640598 161.2 19.3 45.3 Vir 57.9 115 2023 03 06 12 39 38.886 +02 40 38.91 614052 156.0 19.3 40.0 Vir 104 116 2023 03 07 13 05 23.238 -00 28 43.87 588391 150.0 19.4 35.2 Vir 168 116 2023 03 08 13 33 19.823 -03 54 01.74 563933 143.4 19.5 30.9 Vir 251 116 2023 03 09 14 03 49.294 -07 32 35.26 541028 136.2 19.6 27.0 Vir 354 115 2023 03 10 14 37 14.849 -11 19 34.07 520040 128.2 19.8 23.6 Lib 477 114 2023 03 11 15 14 00.230 -15 07 19.74 501320 119.6 19.9 20.7 Lib 614 112 2023 03 12 15 54 25.359 -18 45 02.61 485158 110.4 20.1 18.1 Lib 759 109 2023 03 13 16 38 38.831 -21 58 55.42 471721 100.6 20.4 15.7 Oph 900 105 2023 03 14 17 26 28.000 -24 33 28.85 460971 90.4 20.7 13.5 Oph 1021 100 2023 03 15 18 17 10.793 -26 13 57.69 452578 80.0 21.2 11.2 Sgr 1105 94 2023 03 16 19 09 37.026 -26 49 17.88 445813 69.3 21.7 8.8 Sgr 1131 87 2023 03 17 20 02 25.358 -26 13 53.28 439457 58.7 22?? 6.4 Sgr 1075 80 2023 03 18 20 54 32.386 -24 26 11.19 431706 47.9 23?? 4.0 Cap 900 73 2023 03 19 21 45 41.690 -21 22 46.62 420125 37.0 24?? 2.8 Cap 529 69 2023 03 20 22 36 45.770 -16 45 01.27 401384 25.3 26?? 3.0 Aqr 354 22 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.