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
2021-11-06 14:42:48 C 08 54 53.692 +02 48 23.66 U F51
2021-11-06 14:54:49 C 08 54 57.003 +02 48 14.81 U F51
2021-11-06 15:06:46 C 08 55 00.292 +02 48 06.05 U F51
2021-11-06 15:20:43 C 08 55 04.137 +02 47 55.76 U F51
2021-11-08 13:27:02 C 09 08 13.77 +02 13 10.7 V T05
2021-11-08 13:32:58 C 09 08 15.46 +02 13 06.5 V T05
2021-11-08 13:41:36 C 09 08 17.98 +02 12 59.8 V T05
2021-11-08 13:57:28 C 09 08 22.51 +02 12 47.6 V T05
2021-11-10 12:18:43 C 09 22 04.81 +01 36 17.6 V G96
2021-11-10 12:26:10 C 09 22 07.01 +01 36 11.7 V G96
2021-11-10 12:33:37 C 09 22 09.23 +01 36 05.7 V G96
2021-11-10 12:41:05 C 09 22 11.45 +01 35 59.6 V G96
2021-11-10 15:04:01 C 09 22 54.68 +01 34 08.4 V T08
2021-11-10 15:12:47 C 09 22 57.26 +01 34 01.3 V T08
2021-11-10 15:18:53 C 09 22 59.09 +01 33 56.3 V T08
2021-11-10 15:32:56 C 09 23 03.24 +01 33 45.3 V T08
2021-11-11 10:57:54 C 09 28 57.21 +01 17 58.6 V 703
2021-11-11 11:05:39 C 09 28 59.54 +01 17 52.5 V 703
2021-11-11 11:13:24 C 09 29 01.90 +01 17 45.7 V 703
2021-11-11 11:21:09 C 09 29 04.29 +01 17 39.6 V 703
2021-11-16 13:29:34 C 10 07 47.89 -00 25 30.3 V T05
2021-11-16 13:37:31 C 10 07 50.42 -00 25 36.9 V T05
2021-11-16 13:46:46 C 10 07 53.42 -00 25 45.1 V T05
2021-11-16 13:53:56 S 10 08 25.015 -00 28 26.87 V C57
2021-11-16 13:53:56 s 1 -144284.30 5 +264723.60 4010.0 C57
2021-11-16 14:03:56 S 10 08 28.094 -00 28 34.64 V C57
2021-11-16 14:03:56 s 1 -144513.55 1 +264208.76 9900.0 C57
2021-11-16 14:07:54 C 10 08 00.25 -00 26 03.1 V T05
2021-11-16 14:13:56 S 10 08 31.267 -00 28 45.37 V C57
2021-11-16 14:13:56 s 1 -144742.07 7 +263692.60 2880.0 C57
2021-11-16 14:23:56 S 10 08 34.147 -00 29 01.07 V C57
2021-11-16 14:23:56 s 1 -144969.88 0 +263175.12 2940.0 C57
2021-11-16 14:33:56 S 10 08 37.289 -00 29 01.57 V C57
2021-11-16 14:33:56 s 1 -145196.95 6 +262656.32 60.0 C57
2021-11-16 14:43:56 S 10 08 40.939 -00 29 12.88 V C57
2021-11-16 14:43:56 s 1 -145423.30 2 +262136.19 4230.0 C57
2021-11-16 14:53:56 S 10 08 43.704 -00 29 17.38 V C57
2021-11-16 14:53:56 s 1 -145648.91 4 +261614.75 5440.0 C57
2021-11-16 15:03:56 S 10 08 47.105 -00 29 29.29 V C57
2021-11-16 15:03:56 s 1 -145873.78 8 +261091.97 3670.0 C57
2021-11-16 15:33:56 S 10 08 56.801 -00 29 54.82 V C57
2021-11-16 15:33:56 s 1 -146543.95 3 +259515.67 380.0 C57
2021-11-16 15:53:56 S 10 09 03.142 -00 30 18.40 V C57
2021-11-16 15:53:56 s 1 -146986.97 9 +258458.15 9720.0 C57
2021-11-16 16:03:56 S 10 09 06.466 -00 30 22.57 V C57
2021-11-16 16:03:56 s 1 -147207.35 5 +257927.38 9810.0 C57
2021-11-16 16:13:56 S 10 09 09.566 -00 30 33.05 V C57
2021-11-16 16:13:56 s 1 -147426.96 9 +257395.27 6820.0 C57
2021-11-16 16:33:56 S 10 09 15.437 -00 30 50.11 V C57
2021-11-16 16:33:56 s 1 -147863.89 7 +256327.05 1580.0 C57