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
2019-09-11 21:55:37 C 01 43 35.27 +31 56 03.4 V 073
2019-09-12 08:22:24 C 01 43 47.25 +32 12 59.2 u H21
2019-09-12 08:24:28 C 01 43 47.28 +32 13 02.6 u H21
2019-09-12 08:26:32 C 01 43 47.32 +32 13 05.9 u H21
2019-09-12 08:28:36 C 01 43 47.36 +32 13 09.2 u H21
2019-09-12 08:30:40 C 01 43 47.38 +32 13 12.6 u H21
2019-09-12 08:32:44 C 01 43 47.40 +32 13 15.9 u H21
2019-09-12 08:34:49 C 01 43 47.45 +32 13 19.3 u H21
2019-09-12 08:36:53 C 01 43 47.47 +32 13 22.8 u H21
2019-09-12 08:38:57 C 01 43 47.52 +32 13 26.1 u H21
2019-09-12 08:41:01 C 01 43 47.54 +32 13 29.3 u H21
2019-09-12 08:43:05 C 01 43 47.58 +32 13 32.8 u H21
2019-09-12 08:45:09 C 01 43 47.61 +32 13 36.1 u H21
2019-09-12 08:47:14 C 01 43 47.65 +32 13 39.6 u H21
2019-09-12 08:49:18 C 01 43 47.68 +32 13 42.8 u H21
2019-09-12 08:51:22 C 01 43 47.71 +32 13 46.2 u H21
2019-09-12 08:53:27 C 01 43 47.75 +32 13 49.7 u H21
2019-09-12 08:55:31 C 01 43 47.78 +32 13 52.9 u H21
2019-09-12 08:57:35 C 01 43 47.82 +32 13 56.2 u H21
2019-09-12 08:59:39 C 01 43 47.85 +32 13 59.7 u H21
2019-09-12 09:01:44 C 01 43 47.88 +32 14 02.9 u H21
2019-09-12 09:03:48 C 01 43 47.92 +32 14 06.4 u H21
2019-09-12 09:05:52 C 01 43 47.95 +32 14 09.6 u H21
2019-09-12 09:07:56 C 01 43 47.98 +32 14 12.9 u H21
2019-09-12 09:11:03 C 01 43 48.07 +32 14 18.0 u H21
2019-09-12 20:38:45 C 01 44 02.28 +32 32 55.3 q L34
2019-09-12 20:46:09 C 01 44 02.40 +32 33 07.3 q L34
2019-09-12 20:53:25 C 01 44 02.52 +32 33 19.5 q L34
2019-09-13 09:44:47 C 01 44 16.27 +32 54 29.0 U I41
2019-09-13 09:45:25 C 01 44 16.28 +32 54 30.0 U I41
2019-09-13 11:38:38 C 01 44 18.52 +32 57 38.8 V T05
2019-09-13 11:42:57 C 01 44 18.59 +32 57 45.9 V T05
2019-09-13 11:57:17 C 01 44 18.80 +32 58 09.7 V T05
2019-09-13 12:16:24 C 01 44 19.08 +32 58 41.4 V T05
2019-09-13 13:45:52 C 01 44 20.316 +33 01 08.52 U F51
2019-09-13 14:00:20 C 01 44 20.521 +33 01 32.14 U F51
2019-09-13 14:14:44 C 01 44 20.726 +33 01 55.96 U F51
2019-09-13 14:29:07 C 01 44 20.934 +33 02 19.19 U F51
2019-09-14 00:33:44 C 01 44 32.37 +33 18 56.0 q 160
2019-09-14 00:36:49 C 01 44 32.40 +33 19 01.8 q 160
2019-09-14 00:39:53 C 01 44 32.45 +33 19 06.6 q 160
2019-09-14 10:18:01 C 01 44 42.22 +33 35 12.5 U I41
2019-09-14 10:18:40 C 01 44 42.23 +33 35 13.6 U I41
2019-09-14 12:31:11 C 01 44 44.581 +33 38 57.48 U F51
2019-09-14 12:44:43 C 01 44 44.752 +33 39 20.18 U F51
2019-09-14 12:58:17 C 01 44 44.924 +33 39 42.78 U F51
2019-09-14 13:11:46 C 01 44 45.090 +33 40 04.94 U F51
2019-09-16 22:11:02 C 01 45 38.30 +35 16 53.7 q K63
2019-09-16 22:14:06 C 01 45 38.32 +35 16 59.0 q K63
2019-09-16 22:19:20 C 01 45 38.38 +35 17 08.3 q K63