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
2019-12-21 06:35:27 C 01 28 54.69 +88 02 39.0 V T08
2019-12-21 06:59:36 C 01 29 39.18 +88 02 43.8 V T08
2019-12-21 07:06:01 C 01 29 51.45 +88 02 46.0 V T08
2019-12-21 07:13:06 C 01 30 04.34 +88 02 46.8 V T08
2019-12-22 16:14:14 C 02 42 08.50 +88 05 26.8 q C97
2019-12-22 16:16:26 C 02 42 13.25 +88 05 26.6 q C97
2019-12-22 16:18:40 C 02 42 17.67 +88 05 26.4 q C97
2019-12-22 16:20:52 C 02 42 21.19 +88 05 26.1 q C97
2019-12-26 18:14:23 S 05 37 39.134 +87 18 36.54 V C57
2019-12-26 18:14:23 s 1 +124585.51 4 +248940.03 9870.0 C57
2019-12-26 19:14:23 S 05 38 36.010 +87 17 45.38 V C57
2019-12-26 19:14:23 s 1 +123348.42 5 +252606.88 9620.0 C57
2019-12-26 19:44:23 S 05 39 03.768 +87 17 19.10 V C57
2019-12-26 19:44:23 s 1 +122719.26 6 +254418.98 8340.0 C57
2019-12-26 20:14:23 S 05 39 33.658 +87 16 53.51 V C57
2019-12-26 20:14:23 s 1 +122083.20 8 +256216.98 6750.0 C57
2019-12-26 20:44:23 S 05 39 59.674 +87 16 28.60 V C57
2019-12-26 20:44:23 s 1 +121440.38 1 +258000.99 5180.0 C57
2019-12-26 21:44:23 S 05 40 55.877 +87 15 34.92 V C57
2019-12-26 21:44:23 s 1 +120134.92 2 +261527.42 3410.0 C57
2019-12-26 22:44:23 S 05 41 50.806 +87 14 42.32 V C57
2019-12-26 22:44:23 s 1 +118803.86 6 +264999.02 5540.0 C57
2019-12-26 23:14:23 S 05 42 18.098 +87 14 15.86 V C57
2019-12-26 23:14:23 s 1 +118129.03 3 +266714.48 8830.0 C57
2019-12-26 23:44:23 S 05 42 44.438 +87 13 48.50 V C57
2019-12-26 23:44:23 s 1 +117448.14 8 +268416.51 3990.0 C57
2019-12-27 00:14:23 S 05 43 11.758 +87 13 22.58 V C57
2019-12-27 00:14:23 s 1 +116761.32 2 +270105.19 1310.0 C57
2019-12-27 00:44:23 S 05 43 39.775 +87 12 54.90 V C57
2019-12-27 00:44:23 s 1 +116068.66 2 +271780.61 1080.0 C57
2019-12-27 01:14:23 S 05 44 05.095 +87 12 28.08 V C57
2019-12-27 01:14:23 s 1 +115370.27 4 +273442.85 3550.0 C57
2019-12-27 01:44:23 S 05 44 32.395 +87 12 00.83 V C57
2019-12-27 01:44:23 s 1 +114666.26 3 +275092.00 9010.0 C57
2019-12-27 02:14:23 S 05 44 57.444 +87 11 33.32 V C57
2019-12-27 02:14:23 s 1 +113956.72 9 +276728.14 7720.0 C57
2019-12-27 02:44:23 S 05 45 24.742 +87 11 06.00 V C57
2019-12-27 02:44:23 s 1 +113241.77 1 +278351.36 9940.0 C57
2019-12-27 03:14:23 S 05 45 49.946 +87 10 39.04 V C57
2019-12-27 03:14:23 s 1 +112521.48 7 +279961.72 5910.0 C57
2019-12-27 03:44:23 S 05 46 17.738 +87 10 12.07 V C57
2019-12-27 03:44:23 s 1 +111795.97 2 +281559.32 5880.0 C57
2019-12-27 04:14:23 S 05 46 42.355 +87 09 42.41 V C57
2019-12-27 04:14:23 s 1 +111065.31 9 +283144.23 110.0 C57
2019-12-27 04:44:23 S 05 47 07.786 +87 09 15.01 V C57
2019-12-27 04:44:23 s 1 +110329.61 9 +284716.53 8820.0 C57
2019-12-27 05:14:23 S 05 47 32.782 +87 08 46.64 V C57
2019-12-27 05:14:23 s 1 +109588.96 3 +286276.29 2260.0 C57
2019-12-27 05:44:23 S 05 47 57.922 +87 08 18.96 V C57
2019-12-27 05:44:23 s 1 +108843.43 7 +287823.59 650.0 C57