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
2019-12-05 12:44:24 S 22 24 01.704 +83 24 32.29 V C57
2019-12-05 12:44:24 s 1 -90530.010 0 +380819.80 7790.0 C57
2019-12-05 13:14:24 S 22 24 00.202 +83 24 51.12 V C57
2019-12-05 13:14:24 s 1 -91402.033 0 +380313.14 5500.0 C57
2019-12-05 13:44:24 S 22 23 58.956 +83 25 09.59 V C57
2019-12-05 13:44:24 s 1 -92272.104 0 +379798.31 330.0 C57
2019-12-05 14:14:24 S 22 23 58.061 +83 25 28.78 V C57
2019-12-05 14:14:24 s 1 -93140.198 0 +379275.32 2230.0 C57
2019-12-05 14:44:24 S 22 23 57.341 +83 25 47.82 V C57
2019-12-05 14:44:24 s 1 -94006.291 0 +378744.14 1150.0 C57
2019-12-05 15:14:24 S 22 23 56.405 +83 26 06.86 V C57
2019-12-05 15:14:24 s 1 -94870.361 0 +378204.77 7030.0 C57
2019-12-05 15:44:24 S 22 23 55.183 +83 26 26.05 V C57
2019-12-05 15:44:24 s 1 -95732.384 0 +377657.21 9800.0 C57
2019-12-05 16:14:24 S 22 23 53.808 +83 26 44.38 V C57
2019-12-05 16:14:24 s 1 -96592.335 0 +377101.44 9430.0 C57
2019-12-05 16:44:24 S 22 23 53.004 +83 27 02.77 V C57
2019-12-05 16:44:24 s 1 -97450.191 0 +376537.45 5840.0 C57
2019-12-05 17:14:24 S 22 23 51.554 +83 27 20.81 V C57
2019-12-05 17:14:24 s 1 -98305.928 0 +375965.25 8970.0 C57
2019-12-05 17:44:24 S 22 23 50.054 +83 27 40.03 V C57
2019-12-05 17:44:24 s 1 -99159.521 0 +375384.81 8780.0 C57
2019-12-05 18:14:24 S 22 23 49.766 +83 27 59.47 V C57
2019-12-05 18:14:24 s 1 -100010.94 5 +374796.13 5200.0 C57
2019-12-05 18:44:24 S 22 23 49.459 +83 28 18.30 V C57
2019-12-05 18:44:24 s 1 -100860.17 6 +374199.20 8160.0 C57
2019-12-05 19:14:24 S 22 23 48.641 +83 28 37.49 V C57
2019-12-05 19:14:24 s 1 -101707.18 9 +373594.01 7620.0 C57
2019-12-05 19:44:24 S 22 23 47.371 +83 28 56.17 V C57
2019-12-05 19:44:24 s 1 -102551.95 9 +372980.55 3510.0 C57
2019-12-05 20:14:24 S 22 23 46.342 +83 29 15.97 V C57
2019-12-05 20:14:24 s 1 -103394.46 0 +372358.81 5770.0 C57
2019-12-05 20:44:24 S 22 23 45.305 +83 29 34.04 V C57
2019-12-05 20:44:24 s 1 -104234.66 8 +371728.79 4350.0 C57
2019-12-05 21:14:24 S 22 23 44.338 +83 29 52.44 V C57
2019-12-05 21:14:24 s 1 -105072.55 6 +371090.46 9170.0 C57
2019-12-05 21:44:24 S 22 23 43.908 +83 30 11.99 V C57
2019-12-05 21:44:24 s 1 -105908.10 0 +370443.82 170.0 C57
2019-12-05 22:14:24 S 22 23 43.927 +83 30 31.32 V C57
2019-12-05 22:14:24 s 1 -106741.27 1 +369788.86 7310.0 C57
2019-12-05 22:44:24 S 22 23 43.250 +83 30 50.98 V C57
2019-12-05 22:44:24 s 1 -107572.04 6 +369125.56 500.0 C57
2019-12-05 23:14:24 S 22 23 42.139 +83 31 09.59 V C57
2019-12-05 23:14:24 s 1 -108400.39 7 +368453.93 9700.0 C57
2019-12-05 23:44:24 S 22 23 41.294 +83 31 29.06 V C57
2019-12-05 23:44:24 s 1 -109226.29 7 +367773.93 4840.0 C57
2019-12-06 00:14:24 S 22 23 40.315 +83 31 48.25 V C57
2019-12-06 00:14:24 s 1 -110049.71 9 +367085.57 5840.0 C57
2019-12-06 00:44:24 S 22 23 39.869 +83 32 07.44 V C57
2019-12-06 00:44:24 s 1 -110870.63 8 +366388.83 2660.0 C57