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
2019-11-17 18:44:25 s 1 +130696.76 3 +253693.58 6550.0 C57
2019-11-17 19:14:25 S 23 43 02.179 +78 21 12.96 V C57
2019-11-17 19:14:25 s 1 +130055.31 3 +255417.81 8330.0 C57
2019-11-17 19:44:25 S 23 42 53.784 +78 21 38.74 V C57
2019-11-17 19:44:25 s 1 +129406.94 2 +257128.52 6830.0 C57
2019-11-17 20:44:25 S 23 42 37.601 +78 22 31.04 V C57
2019-11-17 20:44:25 s 1 +128089.90 8 +260509.63 5370.0 C57
2019-11-17 21:14:25 S 23 42 28.862 +78 22 56.53 V C57
2019-11-17 21:14:25 s 1 +127421.47 7 +262180.19 6110.0 C57
2019-11-17 21:44:25 S 23 42 20.818 +78 23 19.21 V C57
2019-11-17 21:44:25 s 1 +126746.58 8 +263837.52 4950.0 C57
2019-11-17 22:14:25 S 23 42 12.449 +78 23 46.28 V C57
2019-11-17 22:14:25 s 1 +126065.35 0 +265481.68 2220.0 C57
2019-11-17 22:44:25 S 23 42 04.145 +78 24 09.90 V C57
2019-11-17 22:44:25 s 1 +125377.87 2 +267112.74 8230.0 C57
2019-11-17 23:14:25 S 23 41 56.143 +78 24 35.57 V C57
2019-11-17 23:14:25 s 1 +124684.25 9 +268730.79 3300.0 C57
2019-11-17 23:44:25 S 23 41 47.806 +78 25 00.08 V C57
2019-11-17 23:44:25 s 1 +123984.61 6 +270335.88 7750.0 C57
2019-11-18 00:14:25 S 23 41 39.142 +78 25 26.04 V C57
2019-11-18 00:14:25 s 1 +123279.04 5 +271928.09 1880.0 C57
2019-11-18 00:44:25 S 23 41 31.642 +78 25 50.74 V C57
2019-11-18 00:44:25 s 1 +122567.64 4 +273507.47 5980.0 C57
2019-11-18 01:14:25 S 23 41 23.141 +78 26 15.07 V C57
2019-11-18 01:14:25 s 1 +121850.51 3 +275074.11 350.0 C57
2019-11-18 01:44:25 S 23 41 15.175 +78 26 40.27 V C57
2019-11-18 01:44:25 s 1 +121127.74 8 +276628.06 5270.0 C57
2019-11-18 02:14:25 S 23 41 06.809 +78 27 04.68 V C57
2019-11-18 02:14:25 s 1 +120399.44 2 +278169.39 1030.0 C57
2019-11-18 04:23:39 C 23 46 03.37 +78 24 14.4 U I41
2019-11-18 04:25:00 C 23 46 03.05 +78 24 15.6 U I41
2019-11-18 04:44:25 S 23 40 25.838 +78 29 09.74 V C57
2019-11-18 04:44:25 s 1 +116677.99 7 +285688.91 1840.0 C57
2019-11-18 05:14:25 S 23 40 18.209 +78 29 33.36 V C57
2019-11-18 05:14:25 s 1 +115918.33 9 +287155.82 8240.0 C57
2019-11-18 05:44:25 S 23 40 10.174 +78 29 57.80 V C57
2019-11-18 05:44:25 s 1 +115153.75 5 +288610.54 7300.0 C57
2019-11-18 06:14:25 S 23 40 02.268 +78 30 22.61 V C57
2019-11-18 06:14:25 s 1 +114384.32 8 +290053.12 9280.0 C57
2019-11-18 06:44:25 S 23 39 54.065 +78 30 46.73 V C57
2019-11-18 06:44:25 s 1 +113610.13 7 +291483.63 4400.0 C57
2019-11-18 07:14:25 S 23 39 46.087 +78 31 11.53 V C57
2019-11-18 07:14:25 s 1 +112831.26 1 +292902.12 2910.0 C57
2019-11-18 07:44:25 S 23 39 38.122 +78 31 35.29 V C57
2019-11-18 07:44:25 s 1 +112047.77 8 +294308.64 5020.0 C57
2019-11-18 08:14:25 S 23 39 30.005 +78 32 01.14 V C57
2019-11-18 08:14:25 s 1 +111259.76 5 +295703.26 990.0 C57
2019-11-18 08:44:25 S 23 39 22.286 +78 32 23.39 V C57
2019-11-18 08:44:25 s 1 +110467.29 5 +297086.01 1010.0 C57
2019-11-18 09:14:25 S 23 39 14.047 +78 32 49.81 V C57