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
2019-12-13 03:44:24 s 1 +136523.74 0 +215412.14 970.0 C57
2019-12-13 04:14:24 S 22 26 55.560 +85 54 40.18 V C57
2019-12-13 04:14:24 s 1 +136067.35 5 +217486.09 8070.0 C57
2019-12-13 04:44:24 S 22 26 56.023 +85 54 59.08 V C57
2019-12-13 04:44:24 s 1 +135600.76 4 +219544.18 5570.0 C57
2019-12-13 04:53:05 C 22 40 58.52 +85 52 53.5 V T08
2019-12-13 05:07:11 C 22 41 00.12 +85 53 04.1 V T08
2019-12-13 05:14:24 S 22 26 55.723 +85 55 18.80 V C57
2019-12-13 05:14:24 s 1 +135124.16 7 +221586.54 4030.0 C57
2019-12-13 05:22:52 C 22 41 02.04 +85 53 15.5 V T08
2019-12-13 05:44:24 S 22 26 54.394 +85 55 37.42 V C57
2019-12-13 05:44:24 s 1 +134637.75 9 +223613.29 4010.0 C57
2019-12-13 06:14:24 S 22 26 53.957 +85 55 56.89 V C57
2019-12-13 06:14:24 s 1 +134141.72 8 +225624.53 6040.0 C57
2019-12-13 06:44:24 S 22 26 52.435 +85 56 15.58 V C57
2019-12-13 06:44:24 s 1 +133636.26 0 +227620.37 640.0 C57
2019-12-13 07:44:24 S 22 26 53.083 +85 56 54.53 V C57
2019-12-13 07:44:24 s 1 +132597.73 1 +231566.33 9580.0 C57
2019-12-13 08:14:24 S 22 26 52.778 +85 57 12.28 V C57
2019-12-13 08:14:24 s 1 +132065.01 6 +233516.67 4890.0 C57
2019-12-13 08:44:24 S 22 26 52.224 +85 57 31.90 V C57
2019-12-13 08:44:24 s 1 +131523.55 9 +235452.04 4730.0 C57
2019-12-13 09:14:24 S 22 26 51.622 +85 57 50.18 V C57
2019-12-13 09:14:24 s 1 +130973.52 2 +237372.56 9550.0 C57
2019-12-13 09:44:24 S 22 26 51.252 +85 58 09.66 V C57
2019-12-13 09:44:24 s 1 +130415.06 5 +239278.34 9800.0 C57
2019-12-13 10:14:24 S 22 26 52.673 +85 58 29.10 V C57
2019-12-13 10:14:24 s 1 +129848.34 2 +241169.46 5920.0 C57
2019-12-13 10:44:24 S 22 26 52.574 +85 58 48.29 V C57
2019-12-13 10:44:24 s 1 +129273.50 7 +243046.03 8340.0 C57
2019-12-13 11:14:24 S 22 26 52.474 +85 59 07.26 V C57
2019-12-13 11:14:24 s 1 +128690.70 7 +244908.16 7470.0 C57
2019-12-13 11:44:24 S 22 26 51.910 +85 59 26.05 V C57
2019-12-13 11:44:24 s 1 +128100.08 7 +246755.93 3710.0 C57
2019-12-13 12:14:24 S 22 26 52.788 +85 59 44.38 V C57
2019-12-13 12:14:24 s 1 +127501.78 7 +248589.44 7460.0 C57
2019-12-13 12:44:24 S 22 26 54.379 +86 00 04.07 V C57
2019-12-13 12:44:24 s 1 +126895.94 7 +250408.78 9110.0 C57
2019-12-13 13:14:24 S 22 26 54.864 +86 00 23.18 V C57
2019-12-13 13:14:24 s 1 +126282.70 2 +252214.05 9040.0 C57
2019-12-13 13:44:24 S 22 26 54.730 +86 00 42.37 V C57
2019-12-13 13:44:24 s 1 +125662.18 3 +254005.34 7610.0 C57
2019-12-13 14:14:24 S 22 26 54.838 +86 01 01.20 V C57
2019-12-13 14:14:24 s 1 +125034.52 0 +255782.74 5180.0 C57
2019-12-13 14:44:24 S 22 26 57.185 +86 01 20.82 V C57
2019-12-13 14:44:24 s 1 +124399.84 0 +257546.33 2110.0 C57
2019-12-13 15:14:24 S 22 26 57.871 +86 01 40.08 V C57
2019-12-13 15:14:24 s 1 +123758.26 5 +259296.20 8740.0 C57
2019-12-13 15:44:24 S 22 26 58.229 +86 01 58.87 V C57
2019-12-13 15:44:24 s 1 +123109.91 8 +261032.44 5400.0 C57