"Pseudo-MPEC" for C4557E1
Created 2025 Oct 26 14:35:08 UT using Find_Orb
Click here for an explanation of pseudo-MPECs
Astrometry:
C4557E1*1C2025 10 26.18046223 13 08.101-05 10 32.52 ~AQ55 18.57GVNEOCP703
C4557E1 1C2025 10 26.18277023 13 17.994-05 08 34.37 ~AQ55 VNEOCP703
C4557E1 1C2025 10 26.18508623 13 27.768-05 06 40.39 ~AQ55 18.74GVNEOCP703
C4557E1 1C2025 10 26.18739523 13 37.884-05 04 40.22 ~AQ55 18.36GVNEOCP703
C4557E1 mC2025 10 26.21228223 15 26.428-04 43 32.41 ~AQ5K 18.04GVNEOCPI52
C4557E1 mC2025 10 26.21239523 15 26.910-04 43 26.83 ~AQ5K 18.13GVNEOCPI52
C4557E1 mC2025 10 26.21250723 15 27.400-04 43 21.04 ~AQ5K 18.12GVNEOCPI52
C4557E1 mC2025 10 26.21263223 15 27.961-04 43 14.63 ~AQ5K 18.06GVNEOCPI52
C4557E1* C2025 10 26.24325923 18 39.193-04 23 19.80 ~AQ6K 18.20GVNEOCPU74
C4557E1 C2025 10 26.24656723 18 54.342-04 20 27.74 ~AQ6K 18.20GVNEOCPU74
C4557E1 mC2025 10 26.25149223 18 22.824-04 09 22.61 ~AQ6Z 18.17GVNEOCPI52
C4557E1 mC2025 10 26.25159323 18 23.288-04 09 16.88 ~AQ6Z 18.24GVNEOCPI52
C4557E1 mC2025 10 26.25169423 18 23.756-04 09 11.63 ~AQ6Z 18.13GVNEOCPI52
C4557E1 mC2025 10 26.25179423 18 24.203-04 09 06.41 ~AQ6Z 17.93GVNEOCPI52
C4557E1 mC2025 10 26.33468023 25 18.944-02 54 14.69 ~AQ8K 18.04GVNEOCPI52
C4557E1 mC2025 10 26.33481923 25 19.744-02 54 06.44 ~AQ8K 18.02GVNEOCPI52
C4557E1 mC2025 10 26.33495523 25 20.485-02 53 59.24 ~AQ8K 18.22GVNEOCPI52
C4557E1 mC2025 10 26.33509023 25 21.220-02 53 51.61 ~AQ8K 17.79GVNEOCPI52
C4557E1 KB2025 10 26.44987 23 47 02.801-01 18 29.34 ~AQC5 17.9 GVNEOCPP13
C4557E1 KB2025 10 26.45514 23 47 33.382-01 13 29.32 ~AQC5 18.0 GVNEOCPP13
C4557E1 KB2025 10 26.46035 23 48 03.533-01 08 30.30 ~AQC5 18.0 GVNEOCPP13
C4557E1 KB2025 10 26.46553 23 48 33.451-01 03 33.77 ~AQC5 17.7 GVNEOCPP13
Station data:
(703) Catalina Sky Survey (N32.417029 W110.732640) US/Arizona. Observer E.
J. Christensen. Measurers T. Beuden, V. F. Carvajal, 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, F.
C. Shelly, K. W. Wierzchoś. 0.68 m Schmidt + 10K CCD.
(I52) Steward Observatory, Mt. Lemmon Station (N32.442570 W110.788920)
US/Arizona. Measurers T. Beuden, V. F. Carvajal, 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, F. C.
Shelly, K. W. Wierzchoś. 1.0-m prime focus + CCD.
(P13) Baihuashan Observatory, Beijing (N39.837554 E115.573330) China.
Observers Z. Wang, B. Liu. Measurer Z. Wang. 0.28-m f/2.2 reflector + CMO.
(U74) JPL SynTrack Robotic Telescope 2, Auberry (N37.070341 W119.412800)
US/California. Observers N. Saini, C. Zhai, R. Trahan, M. Zhan, M. Shao.
0.36-m f/2.2 Schmidt.
Orbital elements: C4557E1
Perigee 2025 Oct 28.114241 +/- 0.00182 TT = 2:44:30.4 (JD 2460976.614241)
Epoch 2025 Oct 26.0 TT = JDT 2460974.5 AutoNEOCP
M 312.755365500 +/- 0.16 (J2000 equator)
n 22.345904668 +/- 0.0574 Peri. 83.824447 +/- 0.058
a269445.8785 +/- 462 Node 356.127542 +/- 0.00031
e 0.44051180 +/- 0.00109 Incl. 28.190668 +/- 0.0009
P 16.1100d H 31.01 G 0.15 U 10.8
q 150751.7870 +/- 67.7 Q 388139.9701 +/- 953
From 22 observations 2025 Oct. 26 (6.8 hr); mean residual 0".71
Residuals in arcseconds: 251026 703 .79+ 1.3- 251026 U74 .47+ .53+ 251026 I52 .14- .55- 251026 703 .51+ .72+ 251026 U74 .56- .47- 251026 I52 .17- .38- 251026 703 2.2- 2.0- 251026 I52 .21+ .11+ 251026 P13 .95+ .14+ 251026 703 .37+ 1.5+ 251026 I52 .17+ .49+ 251026 P13 .17- .23- 251026 I52 .51+ .78+ 251026 I52 .18+ .39+ 251026 P13 .54- .68+ 251026 I52 .30+ .53+ 251026 I52 .05- .31+ 251026 P13 .05+ .32- 251026 I52 .26+ .55+ 251026 I52 .76- .81- 251026 I52 .44+ .51+ 251026 I52 .13- .24- Ephemerides (geocentric): Date (UTC) HH RA Dec delta r elong mag " sig PA ---- -------- ------------ ------------ ------ ------ ----- --- -------- 2025 10 26 15 00 05 01.965 +02 44 37.96 198961 0.9952 149.1 17.9 5.21 62 2025 10 26 16 00 10 30.971 +03 28 21.31 196866 0.9952 150.6 17.9 7.12 61 2025 10 26 17 00 16 07.575 +04 12 53.64 194784 0.9952 152.1 17.8 9.33 61 2025 10 26 18 00 21 52.102 +04 58 14.19 192719 0.9952 153.7 17.7 11.8 61 2025 10 26 19 00 27 44.895 +05 44 21.97 190671 0.9952 155.3 17.7 14.7 61 2025 10 26 20 00 33 46.308 +06 31 15.64 188644 0.9952 156.9 17.6 17.8 61 2025 10 26 21 00 39 56.710 +07 18 53.54 186639 0.9952 158.5 17.5 21.3 62 2025 10 26 22 00 46 16.482 +08 07 13.63 184659 0.9951 160.2 17.4 25.2 62 2025 10 26 23 00 52 46.018 +08 56 13.43 182705 0.9951 161.9 17.4 29.4 62 2025 10 27 00 00 59 25.725 +09 45 50.02 180782 0.9951 163.7 17.3 34.0 62 2025 10 27 01 01 06 16.016 +10 35 59.95 178891 0.9951 165.4 17.2 39.0 63 2025 10 27 02 01 13 17.315 +11 26 39.21 177035 0.9951 167.2 17.1 44.3 63 2025 10 27 03 01 20 30.050 +12 17 43.19 175217 0.9951 169.0 17.0 50.1 64 2025 10 27 04 01 27 54.649 +13 09 06.63 173440 0.9951 170.8 16.9 56.2 64 2025 10 27 05 01 35 31.541 +14 00 43.57 171707 0.9950 172.5 16.8 62.8 64 2025 10 27 06 01 43 21.147 +14 52 27.30 170021 0.9950 174.1 16.7 69.7 65 2025 10 27 07 01 51 23.873 +15 44 10.35 168386 0.9950 175.4 16.7 77.0 66 2025 10 27 08 01 59 40.110 +16 35 44.44 166804 0.9950 175.9 16.6 84.7 66 2025 10 27 09 02 08 10.217 +17 27 00.43 165279 0.9950 175.3 16.6 92.7 67 2025 10 27 10 02 16 54.517 +18 17 48.37 163815 0.9949 174.0 16.7 101 67 2025 10 27 11 02 25 53.288 +19 07 57.47 162414 0.9949 172.2 16.7 110 68 2025 10 27 12 02 35 06.747 +19 57 16.11 161080 0.9949 170.2 16.8 119 69 2025 10 27 13 02 44 35.040 +20 45 31.90 159816 0.9949 168.0 16.9 128 70 2025 10 27 14 02 54 18.228 +21 32 31.74 158626 0.9948 165.8 16.9 138 71 2025 10 27 15 03 04 16.272 +22 18 01.94 157513 0.9948 163.5 17.0 147 72 2025 10 27 16 03 14 29.019 +23 01 48.29 156480 0.9948 161.2 17.1 157 73 2025 10 27 17 03 24 56.189 +23 43 36.23 155530 0.9947 158.8 17.1 167 74 2025 10 27 18 03 35 37.361 +24 23 11.05 154666 0.9947 156.3 17.2 177 75 2025 10 27 19 03 46 31.960 +25 00 18.10 153890 0.9947 153.8 17.2 187 76 2025 10 27 20 03 57 39.250 +25 34 42.96 153204 0.9946 151.3 17.3 197 77 2025 10 27 21 04 08 58.329 +26 06 11.77 152613 0.9946 148.8 17.4 207 78 2025 10 27 22 04 20 28.126 +26 34 31.47 152116 0.9946 146.2 17.4 216 80 2025 10 27 23 04 32 07.404 +26 59 30.04 151715 0.9945 143.7 17.5 226 81 2025 10 28 00 04 43 54.775 +27 20 56.80 151413 0.9945 141.1 17.6 235 82 2025 10 28 01 04 55 48.706 +27 38 42.67 151210 0.9944 138.5 17.6 243 84 2025 10 28 02 05 07 47.548 +27 52 40.33 151107 0.9944 135.9 17.7 251 85 2025 10 28 03 05 19 49.558 +28 02 44.46 151104 0.9943 133.3 17.8 259 87 2025 10 28 04 05 31 52.927 +28 08 51.85 151200 0.9943 130.7 17.9 266 88 2025 10 28 05 05 43 55.819 +28 11 01.46 151397 0.9943 128.1 17.9 272 89 2025 10 28 06 05 55 56.400 +28 09 14.45 151693 0.9942 125.5 18.0 278 91 2025 10 28 07 06 07 52.874 +28 03 34.14 152087 0.9942 122.9 18.1 283 92 2025 10 28 08 06 19 43.517 +27 54 05.90 152578 0.9941 120.3 18.2 288 94 2025 10 28 09 06 31 26.703 +27 40 57.00 153163 0.9941 117.8 18.3 291 95 2025 10 28 10 06 43 00.934 +27 24 16.40 153842 0.9940 115.2 18.3 294 96 2025 10 28 11 06 54 24.856 +27 04 14.51 154612 0.9940 112.7 18.4 296 98 2025 10 28 12 07 05 37.271 +26 41 02.99 155471 0.9939 110.3 18.5 298 99 2025 10 28 13 07 16 37.153 +26 14 54.41 156415 0.9939 107.8 18.6 298 100 2025 10 28 14 07 27 23.641 +25 46 02.04 157442 0.9938 105.4 18.7 298 101