17181 (1999 UM3)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6740285265 ± 7.65e-08
Semi-major axis (a)2.3703717975 AU ± 6.99e-09
Inclination (i)10.65320757° ± 1.04e-05
Long. of Asc. Node (Ω)113.55698136° ± 5.93e-05
Arg. of Perihelion (ω)36.77082206° ± 5.91e-05
Mean Anomaly (M)23.98511905° ± 4.58e-06
Mean Motion (n)0.2700769803°/day ± 1.20e-09
Perihelion dist (q)0.77267359 AU ± 1.81e-07
Aphelion dist (Q)3.96807001 AU ± 1.82e-07
Orbital Period3.64942722 yr ± 1.61e-08
Physical Parameters
H (abs. magnitude)16.77
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual1.132″
Uncertainty0
Orbit TypeApollo
MOID0.071891 AU
Observations Used980
Oppositions50
Arc Total1955-2024
First Observation Used1955-10-24
Last Observation Used2024-11-02
Observations (1801)
Date Type RA Dec Mag Band Observatory
2021-11-26 20:45:05 S 11 32 05.352 -03 59 36.64 V C57
2021-11-26 20:45:05 s 1 -14490.199 0 +379567.02 5280.0 C57
2021-11-26 21:05:05 S 11 32 12.238 -03 59 44.74 V C57
2021-11-26 21:05:05 s 1 -15198.843 0 +379445.93 6830.0 C57
2021-11-26 21:15:05 S 11 32 14.614 -03 59 47.26 V C57
2021-11-26 21:15:05 s 1 -15553.097 0 +379383.89 2090.0 C57
2021-11-26 21:45:05 S 11 32 25.236 -04 00 24.62 V C57
2021-11-26 21:45:05 s 1 -16615.575 0 +379191.78 5810.0 C57
2021-11-26 22:35:05 S 11 32 42.127 -04 00 58.57 V C57
2021-11-26 22:35:05 s 1 -18385.365 0 +378851.63 1520.0 C57
2021-11-26 23:05:05 S 11 32 52.207 -04 01 32.59 V C57
2021-11-26 23:05:05 s 1 -19446.593 0 +378635.55 6490.0 C57
2021-11-26 23:35:05 S 11 33 02.090 -04 02 00.31 V C57
2021-11-26 23:35:05 s 1 -20507.304 0 +378410.48 7990.0 C57
2021-11-26 23:45:05 S 11 33 05.126 -04 01 59.02 V C57
2021-11-26 23:45:05 s 1 -20860.756 0 +378333.45 7710.0 C57
2021-11-27 00:35:05 S 11 33 22.368 -04 02 52.98 V C57
2021-11-27 00:35:05 s 1 -22627.073 0 +377933.31 180.0 C57
2021-11-27 00:55:05 S 11 33 28.430 -04 03 03.89 V C57
2021-11-27 00:55:05 s 1 -23333.144 0 +377766.24 4260.0 C57
2021-11-27 01:05:05 S 11 33 31.877 -04 03 17.57 V C57
2021-11-27 01:05:05 s 1 -23686.078 0 +377681.21 650.0 C57
2021-11-27 01:15:05 S 11 33 35.170 -04 03 22.64 V C57
2021-11-27 01:15:05 s 1 -24038.942 0 +377595.17 6620.0 C57
2021-11-27 01:35:05 S 11 33 41.962 -04 03 39.56 V C57
2021-11-27 01:35:05 s 1 -24744.461 0 +377420.09 7240.0 C57
2021-11-27 01:55:05 S 11 33 48.691 -04 03 52.31 V C57
2021-11-27 01:55:05 s 1 -25449.691 0 +377240.99 6100.0 C57
2021-11-27 02:05:05 S 11 33 51.970 -04 04 08.22 V C57
2021-11-27 02:05:05 s 1 -25802.196 0 +377149.94 9850.0 C57
2021-11-27 02:15:05 S 11 33 55.956 -04 04 13.51 V C57
2021-11-27 02:15:05 s 1 -26154.625 0 +377057.88 3140.0 C57
2021-12-05 12:17:47 C 12 38 32.06 -06 34 13.3 V 703
2021-12-05 12:25:36 C 12 38 34.41 -06 34 19.4 V 703
2021-12-05 12:33:25 C 12 38 36.90 -06 34 23.5 V 703
2021-12-05 12:41:15 C 12 38 39.30 -06 34 29.1 V 703
2021-12-06 03:03:55 S 12 43 42.300 -06 40 20.75 V C57
2021-12-06 03:03:55 s 1 +160402.87 3 +253358.55 4190.0 C57
2021-12-06 03:13:55 S 12 43 45.074 -06 40 26.29 V C57
2021-12-06 03:13:55 s 1 +160215.40 0 +253902.88 2270.0 C57
2021-12-06 12:23:55 S 12 46 38.172 -06 46 40.98 V C57
2021-12-06 12:23:55 s 1 +148753.04 1 +281935.16 8340.0 C57
2021-12-06 12:43:55 S 12 46 44.102 -06 46 49.80 V C57
2021-12-06 12:43:55 s 1 +148297.03 3 +282885.50 7440.0 C57
2021-12-06 13:13:55 S 12 46 53.765 -06 47 14.96 V C57
2021-12-06 13:13:55 s 1 +147601.95 9 +284302.06 9110.0 C57
2021-12-06 13:23:55 S 12 46 57.562 -06 47 21.62 V C57
2021-12-06 13:23:55 s 1 +147371.11 5 +284771.89 8340.0 C57
2021-12-06 16:23:55 S 12 47 52.726 -06 49 20.03 V C57
2021-12-06 16:23:55 s 1 +143112.26 2 +293028.28 8270.0 C57