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
2020-01-05 10:44:23 S 06 59 33.982 +81 31 57.86 V C57
2020-01-05 10:44:23 s 1 -189222.68 0 +109613.51 2800.0 C57
2020-01-05 11:14:23 S 06 59 37.968 +81 30 57.24 V C57
2020-01-05 11:14:23 s 1 -188584.26 2 +107168.93 6960.0 C57
2020-01-05 11:44:23 S 06 59 42.523 +81 29 52.33 V C57
2020-01-05 11:44:23 s 1 -187922.78 4 +104711.23 780.0 C57
2020-01-05 12:14:23 S 06 59 46.800 +81 28 50.84 V C57
2020-01-05 12:14:23 s 1 -187237.76 3 +102240.39 3350.0 C57
2020-01-05 12:44:23 S 06 59 51.542 +81 27 46.66 V C57
2020-01-05 12:44:23 s 1 -186528.69 8 +99756.410 3690.0 C57
2020-01-05 13:14:23 S 06 59 55.930 +81 26 43.69 V C57
2020-01-05 13:14:23 s 1 -185795.07 4 +97259.270 830.0 C57
2020-01-05 13:44:23 S 07 00 00.377 +81 25 40.98 V C57
2020-01-05 13:44:23 s 1 -185036.35 7 +94748.977 3730.0 C57
2020-01-05 14:14:23 S 07 00 05.050 +81 24 37.15 V C57
2020-01-05 14:14:23 s 1 -184251.99 7 +92225.533 1320.0 C57
2020-01-05 14:44:23 S 07 00 09.168 +81 23 34.37 V C57
2020-01-05 14:44:23 s 1 -183441.42 6 +89688.950 2520.0 C57
2020-01-05 15:14:23 S 07 00 14.138 +81 22 30.65 V C57
2020-01-05 15:14:23 s 1 -182604.05 4 +87139.245 6190.0 C57
2020-01-05 15:44:23 S 07 00 18.516 +81 21 28.15 V C57
2020-01-05 15:44:23 s 1 -181739.27 5 +84576.441 1130.0 C57
2020-01-05 16:14:23 S 07 00 23.333 +81 20 22.49 V C57
2020-01-05 16:14:23 s 1 -180846.45 8 +82000.571 6130.0 C57
2020-01-05 16:44:23 S 07 00 27.708 +81 19 21.14 V C57
2020-01-05 16:44:23 s 1 -179924.95 4 +79411.673 9930.0 C57
2020-01-05 17:14:23 S 07 00 32.650 +81 18 16.02 V C57
2020-01-05 17:14:23 s 1 -178974.09 0 +76809.797 1200.0 C57
2020-01-05 17:44:23 S 07 00 37.090 +81 17 12.12 V C57
2020-01-05 17:44:23 s 1 -177993.16 7 +74195.003 8590.0 C57
2020-01-05 18:14:23 S 07 00 41.561 +81 16 08.76 V C57
2020-01-05 18:14:23 s 1 -176981.46 5 +71567.358 670.0 C57
2020-01-05 18:44:23 S 07 00 46.764 +81 15 02.41 V C57
2020-01-05 18:44:23 s 1 -175938.23 4 +68926.944 5980.0 C57
2020-01-05 19:14:23 S 07 00 51.154 +81 14 00.20 V C57
2020-01-05 19:14:23 s 1 -174862.70 0 +66273.856 2990.0 C57
2020-01-05 19:44:23 S 07 00 56.311 +81 12 54.43 V C57
2020-01-05 19:44:23 s 1 -173754.06 0 +63608.200 110.0 C57
2020-01-05 20:14:23 S 07 01 00.785 +81 11 51.07 V C57
2020-01-05 20:14:23 s 1 -172611.47 9 +60930.100 5700.0 C57
2020-01-05 20:44:23 S 07 01 05.873 +81 10 46.27 V C57
2020-01-05 20:44:23 s 1 -171434.09 5 +58239.694 8040.0 C57
2020-01-05 21:14:23 S 07 01 10.514 +81 09 40.28 V C57
2020-01-05 21:14:23 s 1 -170221.00 8 +55537.140 5340.0 C57
2020-01-05 21:44:23 S 07 01 15.650 +81 08 36.53 V C57
2020-01-05 21:44:23 s 1 -168971.29 0 +52822.614 5750.0 C57
2020-01-05 22:14:23 S 07 01 20.395 +81 07 30.54 V C57
2020-01-05 22:14:23 s 1 -167683.97 2 +50096.314 7340.0 C57
2020-01-05 22:44:23 S 07 01 25.404 +81 06 26.17 V C57
2020-01-05 22:44:23 s 1 -166358.05 1 +47358.462 8090.0 C57