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
2019-10-13 20:01:24 C 01 37 18.91 +56 17 44.1 V G34
2019-10-14 10:27:53 C 01 36 34.64 +56 47 18.5 V T08
2019-10-14 10:32:43 C 01 36 34.35 +56 47 28.2 V T08
2019-10-14 10:43:33 C 01 36 33.70 +56 47 50.4 V T08
2019-10-14 10:59:20 C 01 36 32.74 +56 48 22.3 V T08
2019-10-15 03:13:03 C 01 35 43.93 +57 21 05.3 U I41
2019-10-15 03:55:42 C 01 35 41.49 +57 22 33.8 U I41
2019-10-15 04:27:58 C 01 35 38.76 +57 23 42.3 u H21
2019-10-15 04:30:29 C 01 35 38.61 +57 23 47.4 u H21
2019-10-15 04:33:00 C 01 35 38.44 +57 23 52.7 u H21
2019-10-15 04:35:31 C 01 35 38.30 +57 23 57.8 u H21
2019-10-15 04:38:03 C 01 35 38.14 +57 24 02.5 u H21
2019-10-15 04:40:34 C 01 35 38.00 +57 24 08.0 u H21
2019-10-15 04:43:07 C 01 35 37.84 +57 24 13.3 u H21
2019-10-15 04:45:38 C 01 35 37.68 +57 24 18.3 u H21
2019-10-15 04:48:09 C 01 35 37.53 +57 24 23.5 u H21
2019-10-15 04:50:40 C 01 35 37.38 +57 24 28.6 u H21
2019-10-15 04:53:11 C 01 35 37.22 +57 24 33.7 u H21
2019-10-15 04:55:43 C 01 35 37.06 +57 24 39.0 u H21
2019-10-15 04:58:14 C 01 35 36.92 +57 24 44.1 u H21
2019-10-15 05:00:45 C 01 35 36.76 +57 24 49.2 u H21
2019-10-15 05:03:00 C 01 35 36.62 +57 24 53.8 u H21
2019-10-15 05:04:24 C 01 35 37.43 +57 24 56.0 U I41
2019-10-15 05:05:00 C 01 35 36.49 +57 24 57.9 u H21
2019-10-15 05:14:13 C 01 35 36.83 +57 25 16.2 U I41
2019-10-16 14:12:44 C 01 33 41.97 +58 31 43.9 V T05
2019-10-16 14:16:58 C 01 33 41.72 +58 31 52.2 V T05
2019-10-16 14:25:33 C 01 33 41.16 +58 32 08.9 V T05
2019-10-16 14:42:02 C 01 33 40.11 +58 32 40.9 V T05
2019-10-17 20:34:16 C 01 31 52.14 +59 32 23.4 V 089
2019-10-17 20:37:40 C 01 31 51.90 +59 32 30.3 V 089
2019-10-17 20:44:28 C 01 31 51.41 +59 32 43.9 V 089
2019-10-17 20:47:51 C 01 31 51.16 +59 32 50.7 V 089
2019-10-17 20:51:15 C 01 31 50.93 +59 32 57.5 V 089
2019-10-17 20:54:39 C 01 31 50.69 +59 33 04.3 V 089
2019-10-17 20:58:03 C 01 31 50.44 +59 33 10.9 V 089
2019-10-17 21:01:25 C 01 31 50.20 +59 33 17.9 V 089
2019-10-17 21:04:49 C 01 31 49.95 +59 33 24.4 V 089
2019-10-18 09:50:36 C 01 30 59.80 +59 58 52.5 V T08
2019-10-18 10:01:26 C 01 30 58.96 +59 59 13.8 V T08
2019-10-18 10:20:36 C 01 30 57.48 +59 59 51.8 V T08
2019-10-20 21:14:26 C 01 26 43.72 +61 54 59.8 V 089
2019-10-20 21:17:49 C 01 26 43.45 +61 55 06.2 V 089
2019-10-20 21:21:12 C 01 26 43.15 +61 55 12.8 V 089
2019-10-20 21:24:35 C 01 26 42.83 +61 55 19.5 V 089
2019-10-20 21:27:58 C 01 26 42.57 +61 55 25.8 V 089
2019-10-20 21:31:21 C 01 26 42.27 +61 55 32.6 V 089
2019-10-20 21:34:44 C 01 26 41.99 +61 55 39.1 V 089
2019-10-20 21:38:07 C 01 26 41.71 +61 55 45.5 V 089
2019-10-20 21:41:30 C 01 26 41.41 +61 55 52.0 V 089