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
2019-11-09 04:44:25 S 00 22 41.114 +74 27 52.06 V C57
2019-11-09 04:44:25 s 1 -62862.854 0 +381604.81 6550.0 C57
2019-11-09 05:14:25 S 00 22 35.647 +74 28 26.90 V C57
2019-11-09 05:14:25 s 1 -63824.362 0 +381306.11 2280.0 C57
2019-11-09 05:44:25 S 00 22 30.214 +74 29 01.68 V C57
2019-11-09 05:44:25 s 1 -64784.433 0 +380998.85 6290.0 C57
2019-11-09 06:14:25 S 00 22 24.818 +74 29 34.04 V C57
2019-11-09 06:14:25 s 1 -65743.044 0 +380683.03 8520.0 C57
2019-11-09 06:44:25 S 00 22 19.445 +74 30 09.72 V C57
2019-11-09 06:44:25 s 1 -66700.172 0 +380358.64 8910.0 C57
2019-11-09 07:11:51 C 00 27 37.53 +74 32 15.3 V T05
2019-11-09 07:14:25 S 00 22 14.318 +74 30 43.85 V C57
2019-11-09 07:14:25 s 1 -67655.793 0 +380025.68 7390.0 C57
2019-11-09 07:15:58 C 00 27 36.72 +74 32 20.5 V T05
2019-11-09 07:23:28 C 00 27 35.21 +74 32 30.0 V T05
2019-11-09 07:38:08 C 00 27 32.29 +74 32 48.4 V T05
2019-11-09 07:44:25 S 00 22 08.813 +74 31 18.12 V C57
2019-11-09 07:44:25 s 1 -68609.884 0 +379684.15 3910.0 C57
2019-11-09 08:14:25 S 00 22 03.526 +74 31 53.22 V C57
2019-11-09 08:14:25 s 1 -69562.422 0 +379334.05 8380.0 C57
2019-11-09 08:44:25 S 00 21 58.171 +74 32 26.12 V C57
2019-11-09 08:44:25 s 1 -70513.382 0 +378975.37 760.0 C57
2019-11-09 09:14:25 S 00 21 52.776 +74 32 59.93 V C57
2019-11-09 09:14:25 s 1 -71462.742 0 +378608.10 970.0 C57
2019-11-09 09:44:25 S 00 21 47.537 +74 33 36.54 V C57
2019-11-09 09:44:25 s 1 -72410.478 0 +378232.25 8960.0 C57
2019-11-09 10:14:25 S 00 21 42.120 +74 34 09.41 V C57
2019-11-09 10:14:25 s 1 -73356.566 0 +377847.81 4650.0 C57
2019-11-09 10:44:25 S 00 21 36.862 +74 34 44.54 V C57
2019-11-09 10:44:25 s 1 -74300.981 0 +377454.77 7980.0 C57
2019-11-09 11:14:25 S 00 21 31.603 +74 35 17.38 V C57
2019-11-09 11:14:25 s 1 -75243.700 0 +377053.13 8890.0 C57
2019-11-09 11:44:25 S 00 21 26.251 +74 35 51.86 V C57
2019-11-09 11:44:25 s 1 -76184.699 0 +376642.89 7310.0 C57
2019-11-09 12:14:25 S 00 21 21.060 +74 36 26.82 V C57
2019-11-09 12:14:25 s 1 -77123.953 0 +376224.03 3180.0 C57
2019-11-09 12:44:25 S 00 21 15.629 +74 37 00.37 V C57
2019-11-09 12:44:25 s 1 -78061.438 0 +375796.56 6420.0 C57
2019-11-09 13:14:25 S 00 21 10.426 +74 37 34.54 V C57
2019-11-09 13:14:25 s 1 -78997.129 0 +375360.47 6970.0 C57
2019-11-09 13:44:25 S 00 21 05.006 +74 38 08.66 V C57
2019-11-09 13:44:25 s 1 -79931.001 0 +374915.75 4770.0 C57
2019-11-09 14:14:25 S 00 20 59.784 +74 38 42.25 V C57
2019-11-09 14:14:25 s 1 -80863.031 0 +374462.40 9740.0 C57
2019-11-09 14:44:25 S 00 20 54.446 +74 39 17.57 V C57
2019-11-09 14:44:25 s 1 -81793.192 0 +374000.41 1820.0 C57
2019-11-09 15:14:25 S 00 20 49.236 +74 39 49.79 V C57
2019-11-09 15:14:25 s 1 -82721.461 0 +373529.78 950.0 C57
2019-11-09 15:44:25 S 00 20 44.102 +74 40 23.45 V C57
2019-11-09 15:44:25 s 1 -83647.810 0 +373050.49 7050.0 C57