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
2019-12-06 14:14:24 S 22 23 35.981 +83 40 56.35 V C57
2019-12-06 14:14:24 s 1 -131983.15 7 +344359.54 3090.0 C57
2019-12-06 14:44:24 S 22 23 35.803 +83 41 15.83 V C57
2019-12-06 14:44:24 s 1 -132721.93 6 +343422.38 4220.0 C57
2019-12-06 15:14:24 S 22 23 36.595 +83 41 36.20 V C57
2019-12-06 15:14:24 s 1 -133457.31 1 +342476.40 9050.0 C57
2019-12-06 15:23:03 C 22 33 06.59 +83 56 50.5 q C97
2019-12-06 15:25:15 C 22 33 06.39 +83 56 52.0 q C97
2019-12-06 15:27:25 C 22 33 06.19 +83 56 53.3 q C97
2019-12-06 15:33:59 C 22 33 05.49 +83 56 57.8 q C97
2019-12-06 15:36:11 C 22 33 05.28 +83 56 59.0 q C97
2019-12-06 15:44:24 S 22 23 37.277 +83 41 56.04 V C57
2019-12-06 15:44:24 s 1 -134189.24 3 +341521.57 7480.0 C57
2019-12-06 16:14:24 S 22 23 36.994 +83 42 16.24 V C57
2019-12-06 16:14:24 s 1 -134917.69 8 +340557.87 9430.0 C57
2019-12-06 16:44:24 S 22 23 36.221 +83 42 35.78 V C57
2019-12-06 16:44:24 s 1 -135642.63 9 +339585.28 4820.0 C57
2019-12-06 19:44:24 S 22 23 40.970 +83 44 37.21 V C57
2019-12-06 19:44:24 s 1 -139916.37 5 +333561.96 4350.0 C57
2019-12-06 20:14:24 S 22 23 41.117 +83 44 57.59 V C57
2019-12-06 20:14:24 s 1 -140615.65 2 +332526.58 1300.0 C57
2019-12-06 20:44:24 S 22 23 41.628 +83 45 18.07 V C57
2019-12-06 20:44:24 s 1 -141311.10 6 +331482.14 960.0 C57
2019-12-06 21:14:24 S 22 23 43.190 +83 45 38.99 V C57
2019-12-06 21:14:24 s 1 -142002.69 5 +330428.62 3240.0 C57
2019-12-06 21:44:24 S 22 23 43.692 +83 45 59.51 V C57
2019-12-06 21:44:24 s 1 -142690.37 9 +329365.99 8040.0 C57
2019-12-06 22:14:24 S 22 23 43.670 +83 46 19.81 V C57
2019-12-06 22:14:24 s 1 -143374.11 6 +328294.24 5270.0 C57
2019-12-06 22:44:24 S 22 23 44.974 +83 46 40.19 V C57
2019-12-06 22:44:24 s 1 -144053.86 4 +327213.33 4820.0 C57
2019-12-06 23:14:24 S 22 23 46.090 +83 47 00.85 V C57
2019-12-06 23:14:24 s 1 -144729.58 0 +326123.26 6600.0 C57
2019-12-06 23:44:24 S 22 23 46.411 +83 47 21.77 V C57
2019-12-06 23:44:24 s 1 -145401.22 0 +325023.98 510.0 C57
2019-12-07 00:14:24 S 22 23 47.083 +83 47 41.53 V C57
2019-12-07 00:14:24 s 1 -146068.74 2 +323915.49 6440.0 C57
2019-12-07 00:44:24 S 22 23 48.818 +83 48 02.70 V C57
2019-12-07 00:44:24 s 1 -146732.10 0 +322797.74 4290.0 C57
2019-12-07 01:14:24 S 22 23 49.495 +83 48 22.75 V C57
2019-12-07 01:14:24 s 1 -147391.25 1 +321670.72 3950.0 C57
2019-12-07 01:44:24 S 22 23 49.738 +83 48 42.77 V C57
2019-12-07 01:44:24 s 1 -148046.14 8 +320534.41 5320.0 C57
2019-12-07 02:14:24 S 22 23 51.686 +83 49 04.33 V C57
2019-12-07 02:14:24 s 1 -148696.74 5 +319388.77 8300.0 C57
2019-12-07 02:44:24 S 22 23 52.865 +83 49 24.74 V C57
2019-12-07 02:44:24 s 1 -149342.99 7 +318233.78 2770.0 C57
2019-12-07 03:14:24 S 22 23 53.038 +83 49 45.88 V C57
2019-12-07 03:14:24 s 1 -149984.85 4 +317069.41 8620.0 C57
2019-12-07 03:44:24 S 22 23 54.226 +83 50 06.29 V C57