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
2020-01-18 03:14:23 s 1 -211804.74 4 +225430.17 2460.0 C57
2020-01-18 03:44:23 S 07 21 53.098 +71 03 17.64 V C57
2020-01-18 03:44:23 s 1 -211962.38 5 +223682.31 4610.0 C57
2020-01-18 04:14:23 S 07 21 53.647 +71 02 04.13 V C57
2020-01-18 04:14:23 s 1 -212110.70 5 +221924.72 5510.0 C57
2020-01-18 04:44:23 S 07 21 54.156 +71 00 46.26 V C57
2020-01-18 04:44:23 s 1 -212249.59 2 +220157.36 5010.0 C57
2020-01-18 05:14:23 S 07 21 54.799 +70 59 30.91 V C57
2020-01-18 05:14:23 s 1 -212378.93 3 +218380.20 2950.0 C57
2020-01-18 05:44:23 S 07 21 55.339 +70 58 13.69 V C57
2020-01-18 05:44:23 s 1 -212498.61 1 +216593.20 9170.0 C57
2020-01-18 06:14:23 S 07 21 55.747 +70 56 59.24 V C57
2020-01-18 06:14:23 s 1 -212608.50 9 +214796.34 3480.0 C57
2020-01-18 06:44:23 S 07 21 56.424 +70 55 43.07 V C57
2020-01-18 06:44:23 s 1 -212708.50 7 +212989.57 5710.0 C57
2020-01-18 07:14:23 S 07 21 56.959 +70 54 25.16 V C57
2020-01-18 07:14:23 s 1 -212798.48 2 +211172.86 5700.0 C57
2020-01-18 07:44:23 S 07 21 57.442 +70 53 10.79 V C57
2020-01-18 07:44:23 s 1 -212878.30 8 +209346.18 3260.0 C57
2020-01-18 08:14:23 S 07 21 58.135 +70 51 51.01 V C57
2020-01-18 08:14:23 s 1 -212947.86 0 +207509.50 8200.0 C57
2020-01-18 08:44:23 S 07 21 58.709 +70 50 36.56 V C57
2020-01-18 08:44:23 s 1 -213007.00 7 +205662.77 340.0 C57
2020-01-18 09:14:23 S 07 21 59.160 +70 49 20.35 V C57
2020-01-18 09:14:23 s 1 -213055.61 7 +203805.96 9490.0 C57
2020-01-18 09:44:23 S 07 21 59.885 +70 48 03.35 V C57
2020-01-18 09:44:23 s 1 -213093.55 6 +201939.05 5450.0 C57
2020-01-18 10:14:23 S 07 22 00.456 +70 46 47.68 V C57
2020-01-18 10:14:23 s 1 -213120.68 5 +200061.98 8020.0 C57
2020-01-18 10:44:23 S 07 22 00.929 +70 45 28.12 V C57
2020-01-18 10:44:23 s 1 -213136.86 5 +198174.73 7000.0 C57
2020-01-18 11:12:19 C 07 23 36.55 +70 29 00.2 V T08
2020-01-18 11:14:23 S 07 22 01.622 +70 44 12.95 V C57
2020-01-18 11:14:23 s 1 -213141.95 2 +196277.26 2190.0 C57
2020-01-18 11:16:57 C 07 23 36.63 +70 28 49.3 V T08
2020-01-18 11:25:43 C 07 23 36.76 +70 28 28.2 V T08
2020-01-18 11:44:23 S 07 22 02.256 +70 42 54.83 V C57
2020-01-18 11:44:23 s 1 -213135.80 2 +194369.53 3360.0 C57
2020-01-18 12:14:23 S 07 22 02.868 +70 41 37.28 V C57
2020-01-18 12:14:23 s 1 -213118.26 4 +192451.51 310.0 C57
2020-01-18 12:44:23 S 07 22 03.780 +70 40 25.82 V C57
2020-01-18 12:44:23 s 1 -213089.18 7 +190523.17 2810.0 C57
2020-01-18 13:14:23 S 07 22 04.037 +70 39 03.17 V C57
2020-01-18 13:14:23 s 1 -213048.41 6 +188584.46 630.0 C57
2020-01-18 13:44:23 S 07 22 04.531 +70 37 48.58 V C57
2020-01-18 13:44:23 s 1 -212995.79 2 +186635.34 3550.0 C57
2020-01-18 14:14:23 S 07 22 05.256 +70 36 28.87 V C57
2020-01-18 14:14:23 s 1 -212931.15 5 +184675.80 1320.0 C57
2020-01-18 14:44:23 S 07 22 05.741 +70 35 13.60 V C57
2020-01-18 14:44:23 s 1 -212854.33 8 +182705.77 3720.0 C57