18172 (2000 QL7)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5110299298 ± 6.25e-09
Semi-major axis (a)2.4257654377 AU ± 9.50e-10
Inclination (i)17.82779980° ± 1.30e-06
Long. of Asc. Node (Ω)338.42358622° ± 3.04e-06
Arg. of Perihelion (ω)100.76252583° ± 4.20e-06
Mean Anomaly (M)206.68326087° ± 8.97e-07
Mean Motion (n)0.2608789695°/day ± 1.53e-10
Perihelion dist (q)1.18612670 AU ± 1.52e-08
Aphelion dist (Q)3.66540418 AU ± 1.52e-08
Orbital Period3.77809789 yr ± 2.22e-09
Physical Parameters
H (abs. magnitude)15.69
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.341″
Uncertainty0
Orbit TypeAmor
MOID0.365243 AU
Observations Used4239
Gaia Obs Used36
Oppositions29
Arc Total1977-2024
First Observation Used1977-07-21
Last Observation Used2024-05-09
Observations (6767)
Date Type RA Dec Mag Band Observatory
2019-12-07 14:14:24 s 1 -162890.07 8 +289022.51 3760.0 C57
2019-12-07 14:44:24 S 22 24 27.864 +83 57 52.99 V C57
2019-12-07 14:44:24 s 1 -163416.25 4 +287634.28 7190.0 C57
2019-12-07 15:14:24 S 22 24 29.688 +83 58 14.59 V C57
2019-12-07 15:14:24 s 1 -163936.68 3 +286235.92 8830.0 C57
2019-12-07 15:44:24 S 22 24 31.973 +83 58 36.66 V C57
2019-12-07 15:44:24 s 1 -164451.29 9 +284827.39 8530.0 C57
2019-12-07 16:14:24 S 22 24 33.463 +83 58 58.40 V C57
2019-12-07 16:14:24 s 1 -164960.03 2 +283408.66 6120.0 C57
2019-12-07 16:44:24 S 22 24 36.403 +83 59 20.33 V C57
2019-12-07 16:44:24 s 1 -165462.81 4 +281979.69 1450.0 C57
2019-12-07 17:14:24 S 22 24 37.985 +83 59 42.29 V C57
2019-12-07 17:14:24 s 1 -165959.57 4 +280540.44 4340.0 C57
2019-12-07 17:44:24 S 22 24 39.434 +84 00 03.96 V C57
2019-12-07 17:44:24 s 1 -166450.23 9 +279090.87 4630.0 C57
2019-12-07 18:14:24 S 22 24 42.482 +84 00 25.85 V C57
2019-12-07 18:14:24 s 1 -166934.73 7 +277630.95 2150.0 C57
2019-12-07 18:44:24 S 22 24 44.047 +84 00 48.24 V C57
2019-12-07 18:44:24 s 1 -167412.99 4 +276160.63 6710.0 C57
2019-12-07 19:14:24 S 22 24 46.898 +84 01 09.91 V C57
2019-12-07 19:14:24 s 1 -167884.93 4 +274679.87 8150.0 C57
2019-12-07 19:44:24 S 22 24 48.866 +84 01 32.30 V C57
2019-12-07 19:44:24 s 1 -168350.48 1 +273188.64 6280.0 C57
2019-12-07 20:14:24 S 22 24 50.820 +84 01 53.69 V C57
2019-12-07 20:14:24 s 1 -168809.55 6 +271686.89 910.0 C57
2019-12-07 20:44:24 S 22 24 53.762 +84 02 16.01 V C57
2019-12-07 20:44:24 s 1 -169262.08 1 +270174.58 1870.0 C57
2019-12-07 21:14:24 S 22 24 55.586 +84 02 38.00 V C57
2019-12-07 21:14:24 s 1 -169707.97 4 +268651.66 8960.0 C57
2019-12-07 21:44:24 S 22 24 58.750 +84 03 00.40 V C57
2019-12-07 21:44:24 s 1 -170147.15 5 +267118.11 1990.0 C57
2019-12-07 22:14:24 S 22 25 00.883 +84 03 22.32 V C57
2019-12-07 22:14:24 s 1 -170579.53 8 +265573.86 750.0 C57
2019-12-07 22:44:24 S 22 25 03.012 +84 03 44.32 V C57
2019-12-07 22:44:24 s 1 -171005.04 1 +264018.89 5050.0 C57
2019-12-07 23:14:24 S 22 25 06.079 +84 04 06.71 V C57
2019-12-07 23:14:24 s 1 -171423.57 5 +262453.14 4690.0 C57
2019-12-07 23:44:24 S 22 25 07.954 +84 04 28.42 V C57
2019-12-07 23:44:24 s 1 -171835.05 4 +260876.58 9460.0 C57
2019-12-08 00:14:24 S 22 25 11.352 +84 04 51.20 V C57
2019-12-08 00:14:24 s 1 -172239.38 8 +259289.14 9140.0 C57
2019-12-08 00:44:24 S 22 25 13.445 +84 05 13.27 V C57
2019-12-08 00:44:24 s 1 -172636.48 5 +257690.80 3520.0 C57
2019-12-08 01:14:24 S 22 25 16.728 +84 05 36.24 V C57
2019-12-08 01:14:24 s 1 -173026.25 4 +256081.50 2380.0 C57
2019-12-08 01:44:24 S 22 25 19.078 +84 05 58.78 V C57
2019-12-08 01:44:24 s 1 -173408.60 0 +254461.19 5500.0 C57
2019-12-08 02:14:24 S 22 25 21.497 +84 06 21.02 V C57
2019-12-08 02:14:24 s 1 -173783.42 7 +252829.84 2640.0 C57
2019-12-08 02:44:24 S 22 25 25.104 +84 06 44.17 V C57