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
2019-11-08 16:14:25 S 00 24 56.923 +74 13 24.10 V C57
2019-11-08 16:14:25 s 1 -38424.289 0 +386294.61 1220.0 C57
2019-11-08 16:44:25 S 00 24 51.442 +74 13 57.68 V C57
2019-11-08 16:44:25 s 1 -39414.406 0 +386209.57 2880.0 C57
2019-11-08 17:14:25 S 00 24 45.864 +74 14 34.62 V C57
2019-11-08 17:14:25 s 1 -40403.644 0 +386115.98 4700.0 C57
2019-11-08 17:44:25 S 00 24 40.332 +74 15 08.64 V C57
2019-11-08 17:44:25 s 1 -41391.981 0 +386013.83 6750.0 C57
2019-11-08 18:14:25 S 00 24 34.759 +74 15 43.20 V C57
2019-11-08 18:14:25 s 1 -42379.395 0 +385903.14 920.0 C57
2019-11-08 18:44:25 S 00 24 29.114 +74 16 19.96 V C57
2019-11-08 18:44:25 s 1 -43365.864 0 +385783.90 8240.0 C57
2019-11-08 19:14:25 S 00 24 23.825 +74 16 52.43 V C57
2019-11-08 19:14:25 s 1 -44351.367 0 +385656.11 5150.0 C57
2019-11-08 19:44:25 S 00 24 18.362 +74 17 29.00 V C57
2019-11-08 19:44:25 s 1 -45335.882 0 +385519.77 1590.0 C57
2019-11-08 20:14:25 S 00 24 12.977 +74 18 02.56 V C57
2019-11-08 20:14:25 s 1 -46319.385 0 +385374.89 7500.0 C57
2019-11-08 20:44:25 S 00 24 07.699 +74 18 37.69 V C57
2019-11-08 20:44:25 s 1 -47301.857 0 +385221.47 2810.0 C57
2019-11-08 21:14:25 S 00 24 02.129 +74 19 13.84 V C57
2019-11-08 21:14:25 s 1 -48283.273 0 +385059.50 7470.0 C57
2019-11-08 21:44:25 S 00 23 56.693 +74 19 46.99 V C57
2019-11-08 21:44:25 s 1 -49263.614 0 +384888.99 1410.0 C57
2019-11-08 22:14:25 S 00 23 51.185 +74 20 23.24 V C57
2019-11-08 22:14:25 s 1 -50242.855 0 +384709.94 4580.0 C57
2019-11-08 22:44:25 S 00 23 45.713 +74 20 57.23 V C57
2019-11-08 22:44:25 s 1 -51220.975 0 +384522.35 6900.0 C57
2019-11-08 23:14:25 S 00 23 40.243 +74 21 32.76 V C57
2019-11-08 23:14:25 s 1 -52197.953 0 +384326.22 8320.0 C57
2019-11-08 23:44:25 S 00 23 34.848 +74 22 07.00 V C57
2019-11-08 23:44:25 s 1 -53173.764 0 +384121.54 8770.0 C57
2019-11-09 00:14:25 S 00 23 29.513 +74 22 41.52 V C57
2019-11-09 00:14:25 s 1 -54148.389 0 +383908.32 8200.0 C57
2019-11-09 00:44:25 S 00 23 24.113 +74 23 16.87 V C57
2019-11-09 00:44:25 s 1 -55121.803 0 +383686.56 6530.0 C57
2019-11-09 01:14:25 S 00 23 18.650 +74 23 50.14 V C57
2019-11-09 01:14:25 s 1 -56093.985 0 +383456.26 3720.0 C57
2019-11-09 01:44:25 S 00 23 13.174 +74 24 26.28 V C57
2019-11-09 01:44:25 s 1 -57064.912 0 +383217.41 9690.0 C57
2019-11-09 02:14:25 S 00 23 07.762 +74 25 00.30 V C57
2019-11-09 02:14:25 s 1 -58034.561 0 +382970.02 4390.0 C57
2019-11-09 02:44:25 S 00 23 02.186 +74 25 34.03 V C57
2019-11-09 02:44:25 s 1 -59002.910 0 +382714.08 7750.0 C57
2019-11-09 03:14:25 S 00 22 57.103 +74 26 10.10 V C57
2019-11-09 03:14:25 s 1 -59969.937 0 +382449.59 9710.0 C57
2019-11-09 03:44:25 S 00 22 51.979 +74 26 42.14 V C57
2019-11-09 03:44:25 s 1 -60935.619 0 +382176.55 210.0 C57
2019-11-09 04:14:25 S 00 22 46.226 +74 27 19.58 V C57
2019-11-09 04:14:25 s 1 -61899.932 0 +381894.96 9170.0 C57