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
2021-11-25 17:45:05 s 1 +42821.059 0 +376178.78 2960.0 C57
2021-11-25 18:05:05 S 11 23 05.186 -03 36 15.16 V C57
2021-11-25 18:05:05 s 1 +42122.742 0 +376379.56 9670.0 C57
2021-11-25 18:15:05 S 11 23 08.974 -03 36 25.96 V C57
2021-11-25 18:15:05 s 1 +41773.420 0 +376478.45 7630.0 C57
2021-11-25 18:25:05 S 11 23 11.878 -03 36 38.41 V C57
2021-11-25 18:25:05 s 1 +41423.990 0 +376576.35 5340.0 C57
2021-11-25 18:45:05 S 11 23 18.526 -03 36 46.44 V C57
2021-11-25 18:45:05 s 1 +40724.812 0 +376769.14 9990.0 C57
2021-11-25 19:15:05 S 11 23 28.781 -03 37 16.10 V C57
2021-11-25 19:15:05 s 1 +39675.262 0 +377050.85 140.0 C57
2021-11-25 19:25:05 S 11 23 32.321 -03 37 21.14 V C57
2021-11-25 19:25:05 s 1 +39325.207 0 +377142.75 6390.0 C57
2021-11-25 19:35:05 S 11 23 36.175 -03 37 33.42 V C57
2021-11-25 19:35:05 s 1 +38975.051 0 +377233.66 2400.0 C57
2021-11-25 20:25:05 S 11 23 53.225 -03 38 13.34 V C57
2021-11-25 20:25:05 s 1 +37222.797 0 +377673.25 9140.0 C57
2021-11-25 22:15:05 S 11 24 29.506 -03 39 48.89 V C57
2021-11-25 22:15:05 s 1 +33359.664 0 +378552.69 370.0 C57
2021-11-25 22:35:05 S 11 24 36.545 -03 40 11.17 V C57
2021-11-25 22:35:05 s 1 +32656.145 0 +378699.65 5560.0 C57
2021-11-25 22:45:05 S 11 24 40.644 -03 40 12.68 V C57
2021-11-25 22:45:05 s 1 +32304.262 0 +378771.63 7910.0 C57
2021-11-25 22:55:05 S 11 24 43.536 -03 40 29.53 V C57
2021-11-25 22:55:05 s 1 +31952.298 0 +378842.62 110.0 C57
2021-11-25 23:25:05 S 11 24 53.921 -03 40 54.01 V C57
2021-11-25 23:25:05 s 1 +30895.927 0 +379049.64 5810.0 C57
2021-11-25 23:45:05 S 11 25 00.377 -03 41 17.30 V C57
2021-11-25 23:45:05 s 1 +30191.292 0 +379182.67 8910.0 C57
2021-11-26 00:35:05 S 11 25 17.705 -03 41 51.61 V C57
2021-11-26 00:35:05 s 1 +28428.402 0 +379497.87 4380.0 C57
2021-11-26 01:25:05 S 11 25 34.313 -03 42 38.16 V C57
2021-11-26 01:25:05 s 1 +26663.747 0 +379788.24 7000.0 C57
2021-11-26 02:15:05 S 11 25 50.611 -03 43 28.09 V C57
2021-11-26 02:15:05 s 1 +24897.447 0 +380053.79 7220.0 C57
2021-11-26 02:45:05 S 11 26 00.910 -03 43 50.52 V C57
2021-11-26 02:45:05 s 1 +23836.928 0 +380201.21 6400.0 C57
2021-11-26 02:55:05 S 11 26 05.098 -03 43 56.96 V C57
2021-11-26 02:55:05 s 1 +23483.303 0 +380248.36 5980.0 C57
2021-11-26 03:15:05 S 11 26 11.508 -03 44 15.94 V C57
2021-11-26 03:15:05 s 1 +22775.885 0 +380339.69 5020.0 C57
2021-11-26 03:25:05 S 11 26 14.618 -03 44 22.06 V C57
2021-11-26 03:25:05 s 1 +22422.092 0 +380383.87 5610.0 C57
2021-11-26 03:35:05 S 11 26 18.756 -03 44 33.11 V C57
2021-11-26 03:35:05 s 1 +22068.245 0 +380427.06 6250.0 C57
2021-11-26 03:45:05 S 11 26 21.302 -03 44 42.68 V C57
2021-11-26 03:45:05 s 1 +21714.344 0 +380469.25 6940.0 C57
2021-11-26 03:55:05 S 11 26 24.766 -03 44 58.38 V C57
2021-11-26 03:55:05 s 1 +21360.392 0 +380510.45 7670.0 C57
2021-11-26 04:05:05 S 11 26 28.080 -03 44 55.64 V C57