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
2019-09-17 00:31:38 C 01 45 39.78 +35 20 58.9 q 160
2019-09-17 00:34:41 C 01 45 39.81 +35 21 03.9 q 160
2019-09-17 00:37:41 C 01 45 39.83 +35 21 09.2 q 160
2019-09-18 06:31:23 C 01 46 02.74 +36 13 19.3 u H21
2019-09-18 06:31:46 C 01 46 02.74 +36 13 20.0 u H21
2019-09-18 06:37:39 C 01 46 02.78 +36 13 30.4 u H21
2019-09-18 06:40:36 C 01 46 02.80 +36 13 35.6 u H21
2019-09-18 06:43:32 C 01 46 02.83 +36 13 40.8 u H21
2019-09-18 06:46:28 C 01 46 02.85 +36 13 46.0 u H21
2019-09-18 06:49:25 C 01 46 02.88 +36 13 51.1 u H21
2019-09-18 06:52:21 C 01 46 02.91 +36 13 56.4 u H21
2019-09-18 06:54:54 C 01 46 02.92 +36 14 00.8 u H21
2019-09-18 10:06:39 C 01 46 05.56 +36 19 41.7 V T05
2019-09-18 10:22:11 C 01 46 05.67 +36 20 09.5 V T05
2019-09-18 10:26:58 C 01 46 05.72 +36 20 18.1 V T05
2019-09-18 10:36:58 C 01 46 05.78 +36 20 35.7 V T05
2019-09-19 10:44:31 C 01 46 20.62 +37 03 21.6 U I41
2019-09-19 10:45:10 C 01 46 20.62 +37 03 22.7 U I41
2019-09-19 12:14:54 C 01 46 21.79 +37 06 06.2 V T08
2019-09-19 12:19:01 C 01 46 21.82 +37 06 13.4 V T08
2019-09-19 12:38:24 C 01 46 21.91 +37 06 48.1 V T08
2019-09-19 12:55:37 C 01 46 22.00 +37 07 18.8 V T08
2019-09-20 11:28:22 C 01 46 34.75 +37 47 50.4 V T08
2019-09-20 11:38:55 C 01 46 34.77 +37 48 09.5 V T08
2019-09-20 11:43:44 C 01 46 34.80 +37 48 18.1 V T08
2019-09-20 12:02:03 C 01 46 34.86 +37 48 51.3 V T08
2019-09-21 00:18:43 C 01 46 40.84 +38 11 01.7 q 160
2019-09-21 00:21:37 C 01 46 40.73 +38 11 06.3 q 160
2019-09-21 00:24:33 C 01 46 40.86 +38 11 11.8 q 160
2019-09-21 08:22:45 C 01 46 44.47 +38 25 46.6 U I41
2019-09-21 09:29:12 C 01 46 44.63 +38 27 48.4 U I41
2019-09-24 12:35:33 C 01 47 03.21 +40 47 32.2 V T08
2019-09-24 12:40:12 C 01 47 03.19 +40 47 41.0 V T08
2019-09-24 12:49:29 C 01 47 03.15 +40 47 58.5 V T08
2019-09-24 13:33:14 C 01 47 02.99 +40 49 20.5 V T08
2019-09-24 13:33:53 C 01 47 02.98 +40 49 21.7 V T08
2019-09-26 11:43:58 C 01 47 02.01 +42 17 32.5 V T05
2019-09-26 11:48:00 C 01 47 01.97 +42 17 40.2 V T05
2019-09-26 12:17:20 C 01 47 01.73 +42 18 36.8 V T05
2019-09-28 07:36:20 C 01 46 51.02 +43 42 42.7 V 703
2019-09-28 07:43:56 C 01 46 50.93 +43 42 57.7 V 703
2019-09-28 07:51:35 C 01 46 50.84 +43 43 12.6 V 703
2019-09-28 07:59:18 C 01 46 50.76 +43 43 27.8 V 703
2019-09-28 10:55:53 C 01 46 49.68 +43 49 17.1 V T08
2019-09-28 11:04:55 C 01 46 49.56 +43 49 34.7 V T08
2019-09-28 11:15:07 C 01 46 49.43 +43 49 54.7 V T08
2019-09-28 11:21:30 C 01 46 49.36 +43 50 07.4 V T08
2019-09-30 14:24:48 C 01 46 21.22 +45 30 56.3 V T05
2019-09-30 14:29:27 C 01 46 21.16 +45 31 05.3 V T05
2019-09-30 14:37:26 C 01 46 21.00 +45 31 21.0 V T05