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
2019-11-07 10:38:23 C 00 35 16.74 +73 34 27.4 V T08
2019-11-07 11:14:25 S 00 30 22.390 +73 38 40.56 V C57
2019-11-07 11:14:25 s 1 +19752.898 0 +376411.15 5750.0 C57
2019-11-07 11:44:25 S 00 30 16.553 +73 39 19.51 V C57
2019-11-07 11:44:25 s 1 +18749.837 0 +376832.94 8070.0 C57
2019-11-07 12:14:25 S 00 30 10.891 +73 39 54.58 V C57
2019-11-07 12:14:25 s 1 +17746.333 0 +377245.69 6680.0 C57
2019-11-07 12:44:25 S 00 30 05.210 +73 40 32.30 V C57
2019-11-07 12:44:25 s 1 +16742.411 0 +377649.42 1670.0 C57
2019-11-07 13:14:25 S 00 29 59.458 +73 41 07.84 V C57
2019-11-07 13:14:25 s 1 +15737.958 0 +378044.34 1800.0 C57
2019-11-07 13:44:25 S 00 29 53.825 +73 41 44.92 V C57
2019-11-07 13:44:25 s 1 +14733.276 0 +378430.07 9730.0 C57
2019-11-07 14:14:25 S 00 29 47.976 +73 42 21.24 V C57
2019-11-07 14:14:25 s 1 +13728.252 0 +378806.82 4260.0 C57
2019-11-07 14:44:25 S 00 29 42.439 +73 42 57.20 V C57
2019-11-07 14:44:25 s 1 +12722.910 0 +379174.61 5460.0 C57
2019-11-07 15:08:09 C 00 34 37.06 +73 40 26.1 q C97
2019-11-07 15:10:00 C 00 34 36.72 +73 40 28.6 q C97
2019-11-07 15:11:51 C 00 34 36.40 +73 40 31.2 q C97
2019-11-07 15:13:41 C 00 34 36.03 +73 40 33.7 q C97
2019-11-07 15:14:25 S 00 29 36.679 +73 43 34.18 V C57
2019-11-07 15:14:25 s 1 +11717.274 0 +379533.45 3400.0 C57
2019-11-07 15:15:33 C 00 34 35.68 +73 40 36.4 q C97
2019-11-07 15:44:25 S 00 29 30.996 +73 44 11.08 V C57
2019-11-07 15:44:25 s 1 +10711.369 0 +379883.35 8160.0 C57
2019-11-07 16:14:25 S 00 29 25.421 +73 44 46.79 V C57
2019-11-07 16:44:25 S 00 29 19.529 +73 45 24.41 V C57
2019-11-07 17:14:25 S 00 29 14.076 +73 46 00.66 V C57
2019-11-07 17:44:25 S 00 29 08.160 +73 46 36.12 V C57
2019-11-07 18:14:25 S 00 29 02.506 +73 47 13.78 V C57
2019-11-07 18:44:25 S 00 28 56.909 +73 47 47.65 V C57
2019-11-07 19:14:25 S 00 28 51.158 +73 48 26.14 V C57
2019-11-07 19:44:25 S 00 28 45.653 +73 49 01.13 V C57
2019-11-07 20:14:25 S 00 28 39.823 +73 49 38.50 V C57
2019-11-07 20:44:25 S 00 28 34.346 +73 50 14.21 V C57
2019-11-07 21:14:25 S 00 28 28.615 +73 50 50.24 V C57
2019-11-07 21:44:25 S 00 28 23.006 +73 51 27.07 V C57
2019-11-07 22:14:25 S 00 28 17.261 +73 52 01.96 V C57
2019-11-07 22:44:25 S 00 28 11.717 +73 52 39.07 V C57
2019-11-07 23:14:25 S 00 28 06.022 +73 53 14.35 V C57
2019-11-07 23:44:25 S 00 28 00.199 +73 53 51.94 V C57
2019-11-08 00:14:25 S 00 27 54.866 +73 54 26.75 V C57
2019-11-08 00:44:25 S 00 27 49.166 +73 55 03.54 V C57
2019-11-08 01:14:25 S 00 27 43.469 +73 55 39.61 V C57
2019-11-08 01:44:25 S 00 27 37.901 +73 56 13.49 V C57
2019-11-08 02:14:25 S 00 27 32.232 +73 56 51.40 V C57
2019-11-08 02:14:25 s 1 -10432.713 0 +385187.69 8140.0 C57
2019-11-08 02:44:25 S 00 27 26.726 +73 57 25.24 V C57
2019-11-08 02:44:25 s 1 -11438.574 0 +385343.85 600.0 C57