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 03:44:24 s 1 -150622.27 1 +315895.64 5740.0 C57
2019-12-07 04:14:24 S 22 23 56.136 +83 50 27.60 V C57
2019-12-07 04:14:24 s 1 -151255.19 8 +314712.43 4020.0 C57
2019-12-07 04:44:24 S 22 23 56.710 +83 50 48.16 V C57
2019-12-07 04:44:24 s 1 -151883.58 6 +313519.77 3340.0 C57
2019-12-07 04:50:08 C 22 32 28.66 +84 06 22.4 V T05
2019-12-07 04:55:39 C 22 32 28.08 +84 06 26.2 V T05
2019-12-07 05:05:26 C 22 32 27.08 +84 06 33.0 V T05
2019-12-07 05:14:24 S 22 23 58.106 +83 51 09.22 V C57
2019-12-07 05:14:24 s 1 -152507.38 6 +312317.62 3590.0 C57
2019-12-07 05:20:09 C 22 32 25.61 +84 06 42.9 V T05
2019-12-07 05:44:24 S 22 23 59.729 +83 51 30.46 V C57
2019-12-07 05:44:24 s 1 -153126.54 7 +311105.96 4650.0 C57
2019-12-07 06:14:24 S 22 24 00.271 +83 51 51.26 V C57
2019-12-07 06:14:24 s 1 -153741.01 8 +309884.75 6400.0 C57
2019-12-07 06:44:24 S 22 24 01.855 +83 52 12.22 V C57
2019-12-07 06:44:24 s 1 -154350.74 6 +308653.97 8720.0 C57
2019-12-07 06:54:04 C 22 32 16.95 +84 07 45.0 V T05
2019-12-07 06:59:28 C 22 32 16.45 +84 07 48.5 V T05
2019-12-07 07:07:00 C 22 32 15.87 +84 07 53.2 V T05
2019-12-07 07:14:24 S 22 24 03.794 +83 52 33.96 V C57
2019-12-07 07:14:24 s 1 -154955.68 1 +307413.59 1480.0 C57
2019-12-07 07:23:41 C 22 32 14.62 +84 08 03.9 V T05
2019-12-07 07:44:24 S 22 24 04.522 +83 52 54.41 V C57
2019-12-07 07:44:24 s 1 -155555.76 7 +306163.58 4560.0 C57
2019-12-07 08:14:24 S 22 24 05.765 +83 53 15.04 V C57
2019-12-07 08:14:24 s 1 -156150.95 2 +304903.90 7840.0 C57
2019-12-07 08:44:24 S 22 24 08.100 +83 53 36.38 V C57
2019-12-07 08:44:24 s 1 -156741.18 0 +303634.53 1180.0 C57
2019-12-07 09:14:24 S 22 24 08.808 +83 53 57.34 V C57
2019-12-07 09:14:24 s 1 -157326.39 7 +302355.43 4470.0 C57
2019-12-07 09:44:24 S 22 24 10.318 +83 54 18.00 V C57
2019-12-07 09:44:24 s 1 -157906.54 4 +301066.58 7550.0 C57
2019-12-07 10:14:24 S 22 24 12.742 +83 54 40.39 V C57
2019-12-07 10:14:24 s 1 -158481.56 7 +299767.94 310.0 C57
2019-12-07 10:44:24 S 22 24 13.394 +83 55 00.80 V C57
2019-12-07 10:44:24 s 1 -159051.40 5 +298459.48 2600.0 C57
2019-12-07 11:14:24 S 22 24 15.336 +83 55 22.22 V C57
2019-12-07 11:14:24 s 1 -159616.00 1 +297141.17 4290.0 C57
2019-12-07 11:44:24 S 22 24 17.345 +83 55 44.36 V C57
2019-12-07 11:44:24 s 1 -160175.29 5 +295812.97 5230.0 C57
2019-12-07 12:14:24 S 22 24 18.365 +83 56 05.39 V C57
2019-12-07 12:14:24 s 1 -160729.22 6 +294474.86 5290.0 C57
2019-12-07 12:44:24 S 22 24 21.178 +83 56 27.13 V C57
2019-12-07 12:44:24 s 1 -161277.73 3 +293126.79 4320.0 C57
2019-12-07 13:14:24 S 22 24 22.258 +83 56 48.16 V C57
2019-12-07 13:14:24 s 1 -161820.75 3 +291768.73 2180.0 C57
2019-12-07 13:44:24 S 22 24 23.669 +83 57 09.83 V C57
2019-12-07 13:44:24 s 1 -162358.22 3 +290400.65 8710.0 C57
2019-12-07 14:14:24 S 22 24 26.506 +83 57 31.64 V C57