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
2019-12-08 02:44:24 s 1 -174150.63 6 +251187.38 3580.0 C57
2019-12-08 03:14:24 S 22 25 27.120 +84 07 05.48 V C57
2019-12-08 03:14:24 s 1 -174510.12 9 +249533.78 8080.0 C57
2019-12-08 03:44:24 S 22 25 31.171 +84 07 29.06 V C57
2019-12-08 03:44:24 s 1 -174861.80 3 +247868.98 5890.0 C57
2019-12-08 04:14:24 S 22 25 33.785 +84 07 52.86 V C57
2019-12-08 04:14:24 s 1 -175205.55 6 +246192.92 6780.0 C57
2019-12-08 04:44:24 S 22 25 36.713 +84 08 14.78 V C57
2019-12-08 04:44:24 s 1 -175541.28 1 +244505.58 480.0 C57
2019-12-08 05:14:24 S 22 25 39.058 +84 08 37.75 V C57
2019-12-08 05:14:24 s 1 -175868.87 1 +242806.88 6750.0 C57
2019-12-08 05:44:24 S 22 25 42.859 +84 09 00.86 V C57
2019-12-08 05:44:24 s 1 -176188.21 8 +241096.78 5320.0 C57
2019-12-08 06:14:24 S 22 25 45.307 +84 09 23.00 V C57
2019-12-08 06:14:24 s 1 -176499.20 8 +239375.23 5930.0 C57
2019-12-08 06:44:24 S 22 25 48.763 +84 09 47.02 V C57
2019-12-08 06:44:24 s 1 -176801.72 8 +237642.17 8300.0 C57
2019-12-08 07:14:24 S 22 25 51.727 +84 10 09.62 V C57
2019-12-08 07:14:24 s 1 -177095.66 2 +235897.55 2150.0 C57
2019-12-08 07:44:24 S 22 25 54.814 +84 10 32.84 V C57
2019-12-08 07:44:24 s 1 -177380.89 2 +234141.31 7210.0 C57
2019-12-08 08:14:24 S 22 25 58.330 +84 10 55.92 V C57
2019-12-08 08:14:24 s 1 -177657.29 6 +232373.41 3190.0 C57
2019-12-08 08:44:24 S 22 26 01.538 +84 11 18.96 V C57
2019-12-08 08:44:24 s 1 -177924.75 2 +230593.78 9780.0 C57
2019-12-08 09:14:24 S 22 26 04.882 +84 11 42.14 V C57
2019-12-08 09:14:24 s 1 -178183.13 3 +228802.37 6690.0 C57
2019-12-08 09:44:24 S 22 26 08.023 +84 12 05.08 V C57
2019-12-08 09:44:24 s 1 -178432.31 1 +226999.12 3610.0 C57
2019-12-08 10:14:24 S 22 26 12.000 +84 12 29.56 V C57
2019-12-08 10:14:24 s 1 -178672.15 4 +225183.98 230.0 C57
2019-12-08 10:44:24 S 22 26 14.902 +84 12 52.24 V C57
2019-12-08 10:44:24 s 1 -178902.53 0 +223356.88 6220.0 C57
2019-12-08 11:14:24 S 22 26 18.962 +84 13 16.54 V C57
2019-12-08 11:14:24 s 1 -179123.30 1 +221517.77 1260.0 C57
2019-12-08 11:44:24 S 22 26 21.938 +84 13 39.22 V C57
2019-12-08 11:44:24 s 1 -179334.32 7 +219666.59 5000.0 C57
2019-12-08 12:14:24 S 22 26 26.179 +84 14 03.52 V C57
2019-12-08 12:14:24 s 1 -179535.46 7 +217803.27 7110.0 C57
2019-12-08 12:44:24 S 22 26 29.014 +84 14 26.45 V C57
2019-12-08 12:44:24 s 1 -179726.57 3 +215927.77 7240.0 C57
2019-12-08 13:14:24 S 22 26 33.202 +84 14 50.28 V C57
2019-12-08 13:14:24 s 1 -179907.49 9 +214040.00 5030.0 C57
2019-12-08 13:44:24 S 22 26 36.571 +84 15 14.15 V C57
2019-12-08 13:44:24 s 1 -180078.09 0 +212139.93 110.0 C57
2019-12-08 14:14:24 S 22 26 41.350 +84 15 33.26 V C57
2019-12-08 14:14:24 s 1 -180238.19 2 +210227.47 2100.0 C57
2019-12-08 16:14:24 S 22 26 56.371 +84 17 13.24 V C57
2019-12-08 16:14:24 s 1 -180770.46 9 +202452.56 1420.0 C57
2019-12-08 16:44:24 S 22 27 00.252 +84 17 36.96 V C57