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
2019-11-11 08:14:25 S 00 13 58.939 +75 25 13.73 V C57
2019-11-11 08:14:25 s 1 -149593.53 1 +304462.90 6250.0 C57
2019-11-11 08:17:19 C 00 18 38.27 +75 32 01.8 V T08
2019-11-11 08:23:22 C 00 18 36.96 +75 32 08.9 V T08
2019-11-11 08:31:20 C 00 18 35.33 +75 32 18.1 V T08
2019-11-11 08:44:25 S 00 13 54.209 +75 25 46.02 V C57
2019-11-11 08:44:25 s 1 -150254.81 8 +303229.99 7690.0 C57
2019-11-11 09:14:25 S 00 13 49.517 +75 26 19.54 V C57
2019-11-11 09:14:25 s 1 -150911.14 4 +301987.04 8040.0 C57
2019-11-11 09:44:25 S 00 13 45.010 +75 26 51.61 V C57
2019-11-11 09:44:25 s 1 -151562.45 2 +300734.02 7140.0 C57
2019-11-11 10:14:25 S 00 13 40.130 +75 27 23.54 V C57
2019-11-11 10:14:25 s 1 -152208.68 3 +299470.90 4850.0 C57
2019-11-11 10:44:25 S 00 13 35.407 +75 27 56.70 V C57
2019-11-11 10:44:25 s 1 -152849.78 1 +298197.66 1020.0 C57
2019-11-11 11:14:25 S 00 13 30.833 +75 28 29.39 V C57
2019-11-11 11:14:25 s 1 -153485.68 7 +296914.26 5490.0 C57
2019-11-11 11:44:25 S 00 13 26.189 +75 29 02.04 V C57
2019-11-11 11:44:25 s 1 -154116.33 9 +295620.67 8090.0 C57
2019-11-11 12:14:25 S 00 13 21.552 +75 29 33.72 V C57
2019-11-11 12:14:25 s 1 -154741.67 8 +294316.86 8670.0 C57
2019-11-11 13:14:25 S 00 13 12.331 +75 30 40.75 V C57
2019-11-11 13:14:25 s 1 -155975.27 2 +291680.63 3180.0 C57
2019-11-11 13:44:25 S 00 13 07.781 +75 31 11.50 V C57
2019-11-11 13:44:25 s 1 -156584.29 7 +290345.98 6700.0 C57
2019-11-11 14:14:25 S 00 13 02.998 +75 31 45.05 V C57
2019-11-11 14:14:25 s 1 -157187.75 7 +289000.99 7530.0 C57
2019-11-11 14:44:25 S 00 12 58.512 +75 32 17.27 V C57
2019-11-11 14:44:25 s 1 -157785.58 6 +287645.62 5500.0 C57
2019-11-11 15:14:25 S 00 12 53.995 +75 32 49.27 V C57
2019-11-11 15:14:25 s 1 -158377.71 8 +286279.83 430.0 C57
2019-11-11 15:44:25 S 00 12 49.296 +75 33 22.28 V C57
2019-11-11 15:44:25 s 1 -158964.08 5 +284903.60 2140.0 C57
2019-11-11 16:14:25 S 00 12 44.808 +75 33 55.08 V C57
2019-11-11 16:14:25 s 1 -159544.62 0 +283516.88 460.0 C57
2019-11-11 17:14:25 S 00 12 35.729 +75 34 59.77 V C57
2019-11-11 17:14:25 s 1 -160687.91 4 +280711.85 6160.0 C57
2019-11-11 17:44:25 S 00 12 31.063 +75 35 32.03 V C57
2019-11-11 17:44:25 s 1 -161250.53 1 +279293.47 3170.0 C57
2019-11-11 18:14:25 S 00 12 26.501 +75 36 04.68 V C57
2019-11-11 18:14:25 s 1 -161807.03 1 +277864.46 6020.0 C57
2019-11-11 18:44:25 S 00 12 21.972 +75 36 37.98 V C57
2019-11-11 18:44:25 s 1 -162357.34 0 +276424.79 4530.0 C57
2019-11-11 19:14:25 S 00 12 17.609 +75 37 10.34 V C57
2019-11-11 19:14:25 s 1 -162901.38 4 +274974.42 8490.0 C57
2019-11-11 19:44:25 S 00 12 13.104 +75 37 40.69 V C57
2019-11-11 19:44:25 s 1 -163439.08 6 +273513.32 7710.0 C57
2019-11-11 20:14:25 S 00 12 08.417 +75 38 15.83 V C57
2019-11-11 20:14:25 s 1 -163970.37 0 +272041.44 1970.0 C57
2019-11-11 20:44:25 S 00 12 04.174 +75 38 47.90 V C57