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
2019-11-23 05:59:32 C 23 21 01.89 +80 08 17.3 V T08
2019-11-23 06:04:20 C 23 21 00.77 +80 08 21.2 V T08
2019-11-23 06:11:45 C 23 20 59.02 +80 08 26.8 V T08
2019-11-23 06:27:21 C 23 20 55.32 +80 08 38.7 V T08
2019-11-23 07:09:59 C 23 20 45.26 +80 09 11.3 V T08
2019-11-23 07:59:36 C 23 20 33.80 +80 09 48.2 V T08
2019-11-23 08:03:45 C 23 20 32.85 +80 09 51.2 V T08
2019-11-23 08:11:53 C 23 20 30.99 +80 09 57.2 V T08
2019-11-24 03:13:21 C 23 16 47.10 +80 24 47.2 U I41
2019-11-24 04:26:57 C 23 16 30.19 +80 25 42.4 U I41
2019-11-26 15:47:36 C 23 05 06.34 +81 10 02.4 q C97
2019-11-26 15:49:26 C 23 05 05.89 +81 10 03.7 q C97
2019-11-26 15:51:18 C 23 05 05.56 +81 10 04.9 q C97
2019-11-26 15:53:08 C 23 05 05.08 +81 10 06.4 q C97
2019-11-26 15:54:59 C 23 05 04.67 +81 10 07.8 q C97
2019-11-26 15:56:50 C 23 05 04.29 +81 10 08.9 q C97
2019-11-26 15:58:40 C 23 05 03.86 +81 10 10.2 q C97
2019-11-26 16:00:32 C 23 05 03.45 +81 10 11.6 q C97
2019-11-26 16:04:13 C 23 05 02.63 +81 10 14.1 q C97
2019-11-27 02:53:26 C 23 03 05.08 +81 18 02.0 U I41
2019-11-27 03:48:22 C 23 02 53.14 +81 18 40.6 U I41
2019-11-27 06:17:27 C 23 02 25.94 +81 20 30.7 V T08
2019-11-27 06:22:06 C 23 02 24.91 +81 20 33.9 V T08
2019-11-27 06:30:13 C 23 02 23.11 +81 20 39.5 V T08
2019-11-27 06:44:55 C 23 02 20.04 +81 20 49.2 V T08
2019-11-28 15:14:24 S 22 55 10.061 +81 49 29.89 V C57
2019-11-28 15:14:24 s 1 +118770.23 3 +24454.854 8180.0 C57
2019-11-28 15:44:24 S 22 54 58.397 +81 49 52.10 V C57
2019-11-28 15:44:24 s 1 +120320.30 4 +27924.007 7790.0 C57
2019-11-28 16:14:24 S 22 54 47.014 +81 50 15.72 V C57
2019-11-28 16:14:24 s 1 +121796.67 8 +31376.132 6140.0 C57
2019-11-28 16:44:24 S 22 54 35.923 +81 50 37.00 V C57
2019-11-28 16:44:24 s 1 +123202.34 5 +34810.118 1260.0 C57
2019-11-28 17:14:24 S 22 54 24.293 +81 50 59.28 V C57
2019-11-28 17:14:24 s 1 +124540.14 6 +38225.007 770.0 C57
2019-11-28 17:44:24 S 22 54 13.488 +81 51 20.20 V C57
2019-11-28 17:44:24 s 1 +125812.78 1 +41619.972 1970.0 C57
2019-11-28 18:14:24 S 22 54 02.378 +81 51 41.69 V C57
2019-11-28 18:14:24 s 1 +127022.81 5 +44994.307 1800.0 C57
2019-11-28 18:44:24 S 22 53 51.233 +81 52 02.82 V C57
2019-11-28 18:44:24 s 1 +128172.68 5 +48347.411 6900.0 C57
2019-11-28 19:14:24 S 22 53 40.344 +81 52 23.99 V C57
2019-11-28 19:14:24 s 1 +129264.70 5 +51678.774 3570.0 C57
2019-11-28 19:44:24 S 22 53 29.400 +81 52 45.26 V C57
2019-11-28 19:44:24 s 1 +130301.07 6 +54987.971 7830.0 C57
2019-11-28 20:14:24 S 22 53 18.550 +81 53 06.04 V C57
2019-11-28 20:14:24 s 1 +131283.88 8 +58274.648 5430.0 C57
2019-11-28 21:14:24 S 22 52 56.902 +81 53 48.12 V C57
2019-11-28 21:14:24 s 1 +133096.68 8 +64779.349 2230.0 C57
2019-11-28 21:44:24 S 22 52 46.087 +81 54 08.21 V C57