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 05:56:58 C 22 31 36.01 +84 41 37.6 V T08
2019-12-09 06:44:24 S 22 29 11.153 +84 29 18.06 V C57
2019-12-09 06:44:24 s 1 -178361.84 0 +139723.98 5270.0 C57
2019-12-09 07:14:24 S 22 29 16.133 +84 29 44.34 V C57
2019-12-09 07:14:24 s 1 -178039.30 9 +137349.10 4860.0 C57
2019-12-09 07:44:24 S 22 29 22.212 +84 30 10.76 V C57
2019-12-09 07:44:24 s 1 -177697.51 5 +134959.31 9820.0 C57
2019-12-09 08:14:24 S 22 29 27.113 +84 30 36.36 V C57
2019-12-09 08:14:24 s 1 -177336.06 1 +132554.57 9150.0 C57
2019-12-09 09:14:24 S 22 29 39.348 +84 31 28.34 V C57
2019-12-09 09:14:24 s 1 -176552.52 1 +127699.90 6790.0 C57
2019-12-09 09:44:24 S 22 29 43.894 +84 31 55.96 V C57
2019-12-09 09:44:24 s 1 -176129.57 6 +125249.84 2940.0 C57
2019-12-09 10:44:24 S 22 29 55.658 +84 32 49.63 V C57
2019-12-09 10:44:24 s 1 -175219.07 9 +120303.94 4290.0 C57
2019-12-09 11:14:24 S 22 30 01.130 +84 33 16.63 V C57
2019-12-09 11:14:24 s 1 -174730.58 1 +117807.98 7110.0 C57
2019-12-09 11:44:24 S 22 30 07.495 +84 33 43.06 V C57
2019-12-09 11:44:24 s 1 -174219.26 0 +115296.59 6360.0 C57
2019-12-09 12:14:24 S 22 30 13.044 +84 34 10.45 V C57
2019-12-09 12:14:24 s 1 -173684.60 2 +112769.72 750.0 C57
2019-12-09 12:44:24 S 22 30 18.766 +84 34 37.13 V C57
2019-12-09 12:44:24 s 1 -173126.07 6 +110227.32 8950.0 C57
2019-12-09 13:14:24 S 22 30 25.087 +84 35 04.85 V C57
2019-12-09 13:14:24 s 1 -172543.13 2 +107669.34 9570.0 C57
2019-12-09 13:44:24 S 22 30 31.044 +84 35 32.53 V C57
2019-12-09 13:44:24 s 1 -171935.20 2 +105095.72 1160.0 C57
2019-12-09 14:14:24 S 22 30 36.886 +84 35 59.68 V C57
2019-12-09 14:14:24 s 1 -171301.69 5 +102506.44 2240.0 C57
2019-12-09 14:44:24 S 22 30 43.495 +84 36 27.29 V C57
2019-12-09 14:44:24 s 1 -170642.00 4 +99901.448 1250.0 C57
2019-12-09 15:14:24 S 22 30 48.787 +84 36 54.76 V C57
2019-12-09 15:14:24 s 1 -169955.49 5 +97280.717 6600.0 C57
2019-12-09 15:44:24 S 22 30 55.265 +84 37 22.62 V C57
2019-12-09 15:44:24 s 1 -169241.51 3 +94644.223 6620.0 C57
2019-12-09 16:14:24 S 22 31 01.841 +84 37 50.95 V C57
2019-12-09 16:14:24 s 1 -168499.38 1 +91991.948 9570.0 C57
2019-12-09 16:44:24 S 22 31 08.275 +84 38 18.74 V C57
2019-12-09 16:44:24 s 1 -167728.39 4 +89323.880 3670.0 C57
2019-12-09 17:14:24 S 22 31 13.817 +84 38 46.82 V C57
2019-12-09 17:14:24 s 1 -166927.82 0 +86640.017 7030.0 C57
2019-12-09 17:44:24 S 22 31 21.022 +84 39 14.80 V C57
2019-12-09 17:44:24 s 1 -166096.90 2 +83940.364 7730.0 C57
2019-12-09 18:14:24 S 22 31 27.290 +84 39 44.10 V C57
2019-12-09 18:14:24 s 1 -165234.85 2 +81224.938 3740.0 C57
2019-12-09 18:44:24 S 22 31 33.264 +84 40 11.32 V C57
2019-12-09 18:44:24 s 1 -164340.85 1 +78493.765 2960.0 C57
2019-12-09 19:44:24 S 22 31 47.110 +84 41 09.38 V C57
2019-12-09 19:44:24 s 1 -162453.56 3 +72984.351 2200.0 C57
2019-12-09 20:14:24 S 22 31 52.730 +84 41 37.72 V C57