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
2019-11-06 14:14:25 s 1 +61119.045 0 +350298.69 5860.0 C57
2019-11-06 14:44:25 S 00 34 20.059 +73 13 03.14 V C57
2019-11-06 14:44:25 s 1 +60160.003 0 +351117.13 1590.0 C57
2019-11-06 15:14:25 S 00 34 14.426 +73 13 41.38 V C57
2019-11-06 15:14:25 s 1 +59199.264 0 +351925.65 9750.0 C57
2019-11-06 15:32:38 C 00 38 33.11 +73 08 42.8 q C97
2019-11-06 15:34:29 C 00 38 32.75 +73 08 45.5 q C97
2019-11-06 15:36:19 C 00 38 32.37 +73 08 48.2 q C97
2019-11-06 15:38:11 C 00 38 32.03 +73 08 50.8 q C97
2019-11-06 15:40:01 C 00 38 31.77 +73 08 53.3 q C97
2019-11-06 15:41:52 C 00 38 31.42 +73 08 56.0 q C97
2019-11-06 15:44:25 S 00 34 08.287 +73 14 19.50 V C57
2019-11-06 15:44:25 s 1 +58236.864 0 +352724.27 460.0 C57
2019-11-06 16:14:25 S 00 34 02.731 +73 14 58.31 V C57
2019-11-06 16:14:25 s 1 +57272.838 0 +353513.03 3840.0 C57
2019-11-06 16:44:25 S 00 33 56.650 +73 15 35.86 V C57
2019-11-06 16:44:25 s 1 +56307.222 0 +354291.95 9980.0 C57
2019-11-06 17:14:25 S 00 33 51.238 +73 16 12.54 V C57
2019-11-06 17:14:25 s 1 +55340.050 0 +355061.05 9000.0 C57
2019-11-06 17:44:25 S 00 33 43.483 +73 16 49.15 V C57
2019-11-06 17:44:25 s 1 +54371.356 0 +355820.37 1000.0 C57
2019-11-06 18:14:25 S 00 33 38.861 +73 17 32.96 V C57
2019-11-06 18:14:25 s 1 +53401.174 0 +356569.92 6090.0 C57
2019-11-06 18:44:25 S 00 33 33.413 +73 18 07.74 V C57
2019-11-06 18:44:25 s 1 +52429.538 0 +357309.74 4380.0 C57
2019-11-06 19:14:25 S 00 33 27.458 +73 18 46.84 V C57
2019-11-06 19:14:25 s 1 +51456.482 0 +358039.85 5960.0 C57
2019-11-06 19:44:25 S 00 33 21.830 +73 19 22.91 V C57
2019-11-06 19:44:25 s 1 +50482.038 0 +358760.28 940.0 C57
2019-11-06 20:14:25 S 00 33 16.138 +73 20 01.90 V C57
2019-11-06 20:14:25 s 1 +49506.239 0 +359471.05 9420.0 C57
2019-11-06 20:44:25 S 00 33 09.713 +73 20 42.68 V C57
2019-11-06 20:44:25 s 1 +48529.118 0 +360172.18 1500.0 C57
2019-11-06 21:14:25 S 00 33 04.022 +73 21 17.50 V C57
2019-11-06 21:14:25 s 1 +47550.705 0 +360863.70 7280.0 C57
2019-11-06 21:44:25 S 00 32 58.291 +73 21 55.91 V C57
2019-11-06 21:44:25 s 1 +46571.034 0 +361545.63 6860.0 C57
2019-11-06 22:14:25 S 00 32 52.493 +73 22 32.16 V C57
2019-11-06 22:14:25 s 1 +45590.136 0 +362218.00 340.0 C57
2019-11-06 22:44:25 S 00 32 46.582 +73 23 12.05 V C57
2019-11-06 22:44:25 s 1 +44608.042 0 +362880.83 7800.0 C57
2019-11-06 23:14:25 S 00 32 40.894 +73 23 47.44 V C57
2019-11-06 23:14:25 s 1 +43624.782 0 +363534.13 9350.0 C57
2019-11-06 23:44:25 S 00 32 35.129 +73 24 25.88 V C57
2019-11-06 23:44:25 s 1 +42640.387 0 +364177.94 5080.0 C57
2019-11-07 00:11:07 C 00 37 07.65 +73 20 22.2 V W34
2019-11-07 00:14:25 S 00 32 29.261 +73 25 02.82 V C57
2019-11-07 00:14:25 s 1 +41654.888 0 +364812.28 5090.0 C57
2019-11-07 00:27:10 C 00 37 04.73 +73 20 44.8 V W34
2019-11-07 00:35:53 C 00 37 03.20 +73 20 56.8 V W34