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
2019-11-05 13:44:25 s 1 +105155.29 4 +297340.64 8210.0 C57
2019-11-05 14:14:25 S 00 39 12.110 +72 40 58.69 V C57
2019-11-05 14:14:25 s 1 +104334.06 7 +298688.84 5450.0 C57
2019-11-05 14:44:25 S 00 39 05.911 +72 41 41.46 V C57
2019-11-05 14:44:25 s 1 +103508.68 6 +300025.18 7430.0 C57
2019-11-05 15:14:25 S 00 38 59.978 +72 42 19.15 V C57
2019-11-05 15:14:25 s 1 +102679.22 1 +301349.69 4370.0 C57
2019-11-05 15:44:25 S 00 38 53.959 +72 43 01.70 V C57
2019-11-05 15:44:25 s 1 +101845.74 2 +302662.44 6500.0 C57
2019-11-05 16:14:25 S 00 38 47.954 +72 43 39.86 V C57
2019-11-05 16:14:25 s 1 +101008.31 7 +303963.48 4020.0 C57
2019-11-05 18:44:25 S 00 38 17.916 +72 47 02.08 V C57
2019-11-05 18:44:25 s 1 +96764.276 0 +310294.79 9710.0 C57
2019-11-05 18:58:26 C 00 41 53.12 +72 40 11.8 q 006
2019-11-05 19:01:22 C 00 41 52.59 +72 40 15.9 q 006
2019-11-05 19:04:18 C 00 41 52.15 +72 40 20.4 q 006
2019-11-05 19:07:14 C 00 41 51.57 +72 40 24.5 q 006
2019-11-05 19:10:10 C 00 41 51.10 +72 40 28.6 q 006
2019-11-05 19:13:06 C 00 41 50.53 +72 40 33.1 q 006
2019-11-05 19:14:25 S 00 38 11.686 +72 47 40.74 V C57
2019-11-05 19:14:25 s 1 +95904.530 0 +311526.62 3850.0 C57
2019-11-05 19:16:01 C 00 41 50.02 +72 40 36.9 q 006
2019-11-05 19:18:58 C 00 41 49.47 +72 40 41.4 q 006
2019-11-05 19:44:25 S 00 38 05.844 +72 48 21.28 V C57
2019-11-05 19:44:25 s 1 +95041.282 0 +312747.08 4790.0 C57
2019-11-05 20:14:25 S 00 37 59.726 +72 48 59.54 V C57
2019-11-05 20:14:25 s 1 +94174.590 0 +313956.23 2690.0 C57
2019-11-05 20:44:25 S 00 37 53.882 +72 49 41.88 V C57
2019-11-05 20:44:25 s 1 +93304.514 0 +315154.11 7750.0 C57
2019-11-05 21:14:25 S 00 37 47.830 +72 50 18.71 V C57
2019-11-05 21:14:25 s 1 +92431.112 0 +316340.76 150.0 C57
2019-11-05 21:44:25 S 00 37 41.803 +72 51 01.01 V C57
2019-11-05 21:44:25 s 1 +91554.439 0 +317516.23 70.0 C57
2019-11-05 22:14:25 S 00 37 35.861 +72 51 37.80 V C57
2019-11-05 22:14:25 s 1 +90674.554 0 +318680.57 7680.0 C57
2019-11-05 22:44:25 S 00 37 29.820 +72 52 19.16 V C57
2019-11-05 22:44:25 s 1 +89791.509 0 +319833.81 3160.0 C57
2019-11-05 23:14:25 S 00 37 23.304 +72 52 58.48 V C57
2019-11-05 23:14:25 s 1 +88905.361 0 +320976.01 6670.0 C57
2019-11-05 23:44:25 S 00 37 18.026 +72 53 38.29 V C57
2019-11-05 23:44:25 s 1 +88016.163 0 +322107.21 8390.0 C57
2019-11-06 00:14:25 S 00 37 11.830 +72 54 17.53 V C57
2019-11-06 00:14:25 s 1 +87123.967 0 +323227.44 8480.0 C57
2019-11-06 00:44:25 S 00 37 05.974 +72 54 57.38 V C57
2019-11-06 00:44:25 s 1 +86228.825 0 +324336.75 7100.0 C57
2019-11-06 01:14:25 S 00 36 59.926 +72 55 36.66 V C57
2019-11-06 01:14:25 s 1 +85330.790 0 +325435.18 4420.0 C57
2019-11-06 01:44:25 S 00 36 54.722 +72 56 20.40 V C57
2019-11-06 01:44:25 s 1 +84429.911 0 +326522.78 590.0 C57
2019-11-06 02:14:25 S 00 36 48.221 +72 56 53.09 V C57