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
2019-12-09 20:14:24 s 1 -161458.47 1 +70206.229 7560.0 C57
2019-12-09 20:44:24 S 22 32 00.048 +84 42 07.70 V C57
2019-12-09 20:44:24 s 1 -160427.81 9 +67412.602 6820.0 C57
2019-12-09 21:14:24 S 22 32 07.126 +84 42 36.61 V C57
2019-12-09 21:14:24 s 1 -159360.60 9 +64603.573 7390.0 C57
2019-12-09 21:44:24 S 22 32 13.320 +84 43 06.06 V C57
2019-12-09 21:44:24 s 1 -158255.80 5 +61779.261 6590.0 C57
2019-12-09 22:14:24 S 22 32 20.201 +84 43 35.15 V C57
2019-12-09 22:14:24 s 1 -157112.32 6 +58939.809 1610.0 C57
2019-12-09 22:44:24 S 22 32 27.422 +84 44 04.78 V C57
2019-12-09 22:44:24 s 1 -155929.04 7 +56085.384 9500.0 C57
2019-12-09 23:14:24 S 22 32 34.354 +84 44 34.98 V C57
2019-12-09 23:14:24 s 1 -154704.79 4 +53216.179 7210.0 C57
2019-12-10 00:14:24 S 22 32 47.978 +84 45 35.32 V C57
2019-12-10 00:14:24 s 1 -152128.41 4 +47434.349 9120.0 C57
2019-12-10 00:44:24 S 22 32 55.303 +84 46 05.56 V C57
2019-12-10 00:44:24 s 1 -150773.67 9 +44522.269 6470.0 C57
2019-12-10 01:14:24 S 22 33 01.342 +84 46 35.87 V C57
2019-12-10 01:14:24 s 1 -149372.74 4 +41596.503 9900.0 C57
2019-12-11 07:24:01 C 22 34 06.17 +85 18 08.4 V T05
2019-12-11 07:28:12 C 22 34 06.40 +85 18 11.0 V T05
2019-12-11 07:38:44 C 22 34 07.07 +85 18 18.4 V T05
2019-12-11 07:53:14 C 22 34 07.77 +85 18 28.2 V T05
2019-12-12 07:14:24 S 22 28 52.999 +85 41 10.50 V C57
2019-12-12 07:14:24 s 1 +142930.22 7 +115016.86 3270.0 C57
2019-12-12 07:44:24 S 22 28 48.643 +85 41 30.19 V C57
2019-12-12 07:44:24 s 1 +143170.01 1 +117865.06 2350.0 C57
2019-12-12 08:14:24 S 22 28 43.656 +85 41 50.24 V C57
2019-12-12 08:14:24 s 1 +143382.66 2 +120691.14 5580.0 C57
2019-12-12 08:44:24 S 22 28 39.170 +85 42 09.86 V C57
2019-12-12 08:44:24 s 1 +143568.95 7 +123495.26 5010.0 C57
2019-12-12 09:14:24 S 22 28 34.915 +85 42 29.92 V C57
2019-12-12 09:14:24 s 1 +143729.64 4 +126277.57 2630.0 C57
2019-12-12 09:44:24 S 22 28 30.545 +85 42 49.32 V C57
2019-12-12 09:44:24 s 1 +143865.44 0 +129038.25 370.0 C57
2019-12-12 10:14:24 S 22 28 26.678 +85 43 08.83 V C57
2019-12-12 10:14:24 s 1 +143977.03 5 +131777.46 70.0 C57
2019-12-12 10:44:24 S 22 28 22.469 +85 43 28.45 V C57
2019-12-12 10:44:24 s 1 +144065.09 2 +134495.36 3510.0 C57
2019-12-12 11:14:24 S 22 28 18.367 +85 43 47.96 V C57
2019-12-12 11:14:24 s 1 +144130.24 9 +137192.14 2390.0 C57
2019-12-12 11:44:24 S 22 28 14.414 +85 44 07.40 V C57
2019-12-12 11:44:24 s 1 +144173.12 0 +139867.96 8370.0 C57
2019-12-12 12:14:24 S 22 28 10.454 +85 44 26.99 V C57
2019-12-12 12:14:24 s 1 +144194.29 5 +142522.99 3050.0 C57
2019-12-12 12:44:24 S 22 28 06.622 +85 44 46.64 V C57
2019-12-12 12:44:24 s 1 +144194.34 2 +145157.40 7950.0 C57
2019-12-12 13:14:24 S 22 28 03.269 +85 45 05.98 V C57
2019-12-12 13:14:24 s 1 +144173.81 1 +147771.37 4560.0 C57
2019-12-12 13:44:24 S 22 27 59.748 +85 45 25.16 V C57