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
2019-11-30 14:14:24 s 1 +122056.39 9 +260669.09 3520.0 C57
2019-11-30 14:44:24 S 22 40 42.281 +82 18 04.64 V C57
2019-11-30 14:44:24 s 1 +121409.96 5 +262365.39 3490.0 C57
2019-11-30 15:14:24 S 22 40 35.278 +82 18 21.28 V C57
2019-11-30 15:14:24 s 1 +120757.23 0 +264048.21 2070.0 C57
2019-11-30 15:38:38 C 22 48 49.90 +82 17 33.6 q C97
2019-11-30 15:40:39 C 22 48 49.51 +82 17 34.9 q C97
2019-11-30 15:42:41 C 22 48 49.13 +82 17 36.3 q C97
2019-11-30 15:44:24 S 22 40 27.490 +82 18 38.16 V C57
2019-11-30 15:44:24 s 1 +120098.30 7 +265717.63 9580.0 C57
2019-11-30 15:44:42 C 22 48 48.74 +82 17 37.6 q C97
2019-11-30 15:46:44 C 22 48 48.33 +82 17 39.0 q C97
2019-11-30 15:48:45 C 22 48 47.93 +82 17 40.3 q C97
2019-11-30 15:50:47 C 22 48 47.59 +82 17 41.5 q C97
2019-11-30 15:52:48 C 22 48 47.21 +82 17 42.8 q C97
2019-11-30 16:14:24 S 22 40 21.103 +82 18 53.03 V C57
2019-11-30 16:14:24 s 1 +119433.30 5 +267373.75 6360.0 C57
2019-11-30 16:44:24 S 22 40 13.212 +82 19 09.80 V C57
2019-11-30 16:44:24 s 1 +118762.33 0 +269016.64 2750.0 C57
2019-11-30 17:14:24 S 22 40 06.754 +82 19 25.64 V C57
2019-11-30 17:14:24 s 1 +118085.48 7 +270646.38 9050.0 C57
2019-11-30 17:44:24 S 22 39 59.002 +82 19 42.17 V C57
2019-11-30 17:44:24 s 1 +117402.88 0 +272263.05 5580.0 C57
2019-11-30 18:14:24 S 22 39 52.210 +82 19 58.80 V C57
2019-11-30 18:14:24 s 1 +116714.60 8 +273866.73 2660.0 C57
2019-11-30 18:44:24 S 22 39 45.022 +82 20 15.32 V C57
2019-11-30 18:44:24 s 1 +116020.77 1 +275457.49 570.0 C57
2019-11-30 19:14:24 S 22 39 37.790 +82 20 31.60 V C57
2019-11-30 19:14:24 s 1 +115321.46 4 +277035.41 9620.0 C57
2019-11-30 19:44:24 S 22 39 30.895 +82 20 47.83 V C57
2019-11-30 19:44:24 s 1 +114616.78 2 +278600.57 100.0 C57
2019-11-30 20:14:24 S 22 39 23.770 +82 21 03.17 V C57
2019-11-30 20:14:24 s 1 +113906.81 8 +280153.03 2280.0 C57
2019-11-30 20:44:24 S 22 39 17.014 +82 21 19.55 V C57
2019-11-30 20:44:24 s 1 +113191.66 3 +281692.87 6440.0 C57
2019-11-30 21:14:24 S 22 39 09.710 +82 21 35.57 V C57
2019-11-30 21:14:24 s 1 +112471.40 6 +283220.15 2870.0 C57
2019-11-30 21:44:24 S 22 39 03.137 +82 21 52.20 V C57
2019-11-30 21:44:24 s 1 +111746.13 5 +284734.96 1820.0 C57
2019-11-30 22:14:24 S 22 38 55.774 +82 22 08.54 V C57
2019-11-30 22:14:24 s 1 +111015.93 4 +286237.36 3560.0 C57
2019-11-30 22:44:24 S 22 38 49.344 +82 22 25.00 V C57
2019-11-30 22:44:24 s 1 +110280.88 9 +287727.42 8340.0 C57
2019-11-30 23:14:24 S 22 38 42.178 +82 22 41.56 V C57
2019-11-30 23:14:24 s 1 +109541.08 1 +289205.20 6430.0 C57
2019-11-30 23:44:24 S 22 38 36.154 +82 22 57.32 V C57
2019-11-30 23:44:24 s 1 +108796.59 2 +290670.77 8060.0 C57
2019-12-01 00:14:24 S 22 38 28.963 +82 23 12.95 V C57
2019-12-01 00:14:24 s 1 +108047.50 1 +292124.19 3490.0 C57
2019-12-01 00:44:24 S 22 38 22.462 +82 23 29.29 V C57