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
2019-11-04 14:14:25 s 1 +137422.70 9 +219401.75 2230.0 C57
2019-11-04 15:45:42 C 00 46 09.38 +72 01 35.6 q C97
2019-11-04 15:47:13 C 00 46 09.17 +72 01 37.7 q C97
2019-11-04 15:48:44 C 00 46 08.89 +72 01 40.1 q C97
2019-11-04 15:50:16 C 00 46 08.67 +72 01 42.3 q C97
2019-11-04 15:51:46 C 00 46 08.39 +72 01 44.6 q C97
2019-11-04 15:53:18 C 00 46 08.14 +72 01 47.0 q C97
2019-11-04 15:54:49 C 00 46 07.86 +72 01 49.2 q C97
2019-11-04 15:56:20 C 00 46 07.62 +72 01 51.3 q C97
2019-11-04 17:44:25 S 00 43 22.174 +72 12 45.90 V C57
2019-11-04 17:44:25 s 1 +133612.97 2 +232960.07 9170.0 C57
2019-11-04 18:11:06 C 00 45 47.49 +72 04 57.3 q 006
2019-11-04 18:14:25 S 00 43 16.162 +72 13 22.15 V C57
2019-11-04 18:14:25 s 1 +133033.26 0 +234836.86 1930.0 C57
2019-11-04 18:18:25 C 00 45 46.23 +72 05 08.3 q 006
2019-11-04 18:30:54 C 00 45 44.14 +72 05 26.2 q 006
2019-11-04 18:34:19 C 00 45 43.62 +72 05 31.6 q 006
2019-11-04 18:36:31 C 00 45 43.29 +72 05 34.9 q 006
2019-11-04 18:43:51 C 00 45 42.01 +72 05 45.9 q 006
2019-11-04 18:44:25 S 00 43 10.577 +72 14 07.66 V C57
2019-11-04 18:44:25 s 1 +132445.17 6 +236698.90 6290.0 C57
2019-11-04 18:49:44 C 00 45 40.99 +72 05 55.3 q 006
2019-11-04 19:14:25 S 00 43 04.291 +72 14 49.20 V C57
2019-11-04 19:14:25 s 1 +131848.87 1 +238546.28 2730.0 C57
2019-11-04 19:44:25 S 00 42 57.874 +72 15 33.70 V C57
2019-11-04 19:44:25 s 1 +131244.49 9 +240379.11 1710.0 C57
2019-11-04 20:14:25 S 00 42 52.008 +72 16 13.15 V C57
2019-11-04 20:14:25 s 1 +130632.20 5 +242197.47 3710.0 C57
2019-11-04 20:44:25 S 00 42 45.677 +72 16 57.76 V C57
2019-11-04 20:44:25 s 1 +130012.13 5 +244001.45 9150.0 C57
2019-11-04 21:14:25 S 00 42 39.595 +72 17 38.08 V C57
2019-11-04 21:14:25 s 1 +129384.42 9 +245791.13 8480.0 C57
2019-11-04 21:44:25 S 00 42 33.413 +72 18 22.46 V C57
2019-11-04 21:44:25 s 1 +128749.22 6 +247566.60 2130.0 C57
2019-11-04 22:14:25 S 00 42 27.113 +72 19 02.78 V C57
2019-11-04 22:14:25 s 1 +128106.65 9 +249327.95 510.0 C57
2019-11-04 22:19:37 C 00 45 05.78 +72 10 56.6 V Z80
2019-11-04 22:21:17 C 00 45 05.65 +72 10 59.4 V Z80
2019-11-04 22:22:58 C 00 45 05.41 +72 11 01.4 V Z80
2019-11-04 22:24:37 C 00 45 05.04 +72 11 03.4 V Z80
2019-11-04 22:26:18 C 00 45 04.72 +72 11 06.4 V Z80
2019-11-04 22:44:25 S 00 42 21.046 +72 19 42.85 V C57
2019-11-04 22:44:25 s 1 +127456.86 2 +251075.26 4030.0 C57
2019-11-04 23:14:25 S 00 42 14.914 +72 20 26.63 V C57
2019-11-04 23:14:25 s 1 +126799.96 2 +252808.62 3100.0 C57
2019-11-04 23:44:25 S 00 42 08.870 +72 21 09.54 V C57
2019-11-04 23:44:25 s 1 +126136.08 7 +254528.10 8100.0 C57
2019-11-05 00:14:25 S 00 42 02.556 +72 21 50.69 V C57
2019-11-05 00:14:25 s 1 +125465.35 9 +256233.79 9420.0 C57
2019-11-05 00:44:25 S 00 41 56.542 +72 22 33.60 V C57