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
2019-11-10 02:44:25 S 00 18 49.738 +74 52 46.49 V C57
2019-11-10 02:44:25 s 1 -103489.16 2 +360301.36 3260.0 C57
2019-11-10 03:14:25 S 00 18 44.458 +74 53 18.56 V C57
2019-11-10 03:14:25 s 1 -104364.06 2 +359620.79 100.0 C57
2019-11-10 03:44:25 S 00 18 39.398 +74 53 52.51 V C57
2019-11-10 03:44:25 s 1 -105236.38 7 +358931.35 2160.0 C57
2019-11-10 04:14:25 S 00 18 34.354 +74 54 26.96 V C57
2019-11-10 04:14:25 s 1 -106106.10 8 +358233.02 9350.0 C57
2019-11-10 04:44:25 S 00 18 29.244 +74 54 59.69 V C57
2019-11-10 04:44:25 s 1 -106973.19 5 +357525.80 1600.0 C57
2019-11-10 05:14:25 S 00 18 24.122 +74 55 33.82 V C57
2019-11-10 05:14:25 s 1 -107837.61 8 +356809.66 8830.0 C57
2019-11-10 05:16:42 C 00 23 38.11 +74 59 35.3 U I41
2019-11-10 05:17:59 C 00 23 37.85 +74 59 36.9 U I41
2019-11-10 05:44:25 S 00 18 19.090 +74 56 06.79 V C57
2019-11-10 05:44:25 s 1 -108699.34 5 +356084.61 960.0 C57
2019-11-10 06:14:25 S 00 18 13.874 +74 56 39.62 V C57
2019-11-10 06:14:25 s 1 -109558.34 7 +355350.61 7910.0 C57
2019-11-10 06:44:25 S 00 18 08.808 +74 57 13.43 V C57
2019-11-10 06:44:25 s 1 -110414.59 1 +354607.68 9580.0 C57
2019-11-10 07:44:25 S 00 17 58.394 +74 58 19.96 V C57
2019-11-10 07:44:25 s 1 -112118.68 2 +353094.90 6800.0 C57
2019-11-10 08:14:25 S 00 17 53.690 +74 58 52.50 V C57
2019-11-10 08:14:25 s 1 -112966.46 5 +352325.04 2170.0 C57
2019-11-10 08:44:25 S 00 17 48.533 +74 59 27.49 V C57
2019-11-10 08:44:25 s 1 -113811.36 4 +351546.17 1940.0 C57
2019-11-10 09:14:25 S 00 17 43.464 +74 59 59.24 V C57
2019-11-10 09:14:25 s 1 -114653.34 6 +350758.28 6020.0 C57
2019-11-10 09:44:25 S 00 17 38.494 +75 00 33.30 V C57
2019-11-10 09:44:25 s 1 -115492.37 9 +349961.37 4310.0 C57
2019-11-10 10:14:25 S 00 17 33.571 +75 01 06.24 V C57
2019-11-10 10:14:25 s 1 -116328.42 8 +349155.40 6750.0 C57
2019-11-10 10:44:25 S 00 17 28.397 +75 01 38.60 V C57
2019-11-10 10:44:25 s 1 -117161.46 1 +348340.38 3220.0 C57
2019-11-10 11:14:25 S 00 17 23.239 +75 02 13.67 V C57
2019-11-10 11:14:25 s 1 -117991.44 5 +347516.27 3660.0 C57
2019-11-10 11:44:25 S 00 17 18.509 +75 02 45.64 V C57
2019-11-10 11:44:25 s 1 -118818.34 4 +346683.08 7960.0 C57
2019-11-10 12:14:25 S 00 17 13.358 +75 03 19.33 V C57
2019-11-10 12:14:25 s 1 -119642.12 4 +345840.77 6040.0 C57
2019-11-10 12:44:25 S 00 17 08.350 +75 03 52.63 V C57
2019-11-10 12:44:25 s 1 -120462.75 2 +344989.34 7800.0 C57
2019-11-10 13:14:25 S 00 17 03.552 +75 04 24.64 V C57
2019-11-10 13:14:25 s 1 -121280.19 1 +344128.77 3150.0 C57
2019-11-10 13:44:25 S 00 16 58.354 +75 04 58.30 V C57
2019-11-10 13:44:25 s 1 -122094.40 7 +343259.04 2000.0 C57
2019-11-10 14:14:25 S 00 16 53.333 +75 05 31.81 V C57
2019-11-10 14:14:25 s 1 -122905.36 3 +342380.13 4250.0 C57
2019-11-10 14:44:25 S 00 16 48.331 +75 06 04.39 V C57
2019-11-10 14:44:25 s 1 -123713.02 4 +341492.03 9810.0 C57