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
2019-12-12 13:44:24 s 1 +144133.22 8 +150365.06 4310.0 C57
2019-12-12 14:14:24 S 22 27 56.114 +85 45 44.50 V C57
2019-12-12 14:14:24 s 1 +144073.10 3 +152938.66 8600.0 C57
2019-12-12 14:44:24 S 22 27 52.541 +85 46 03.68 V C57
2019-12-12 14:44:24 s 1 +143993.92 7 +155492.32 8740.0 C57
2019-12-12 15:14:24 S 22 27 49.032 +85 46 23.45 V C57
2019-12-12 15:14:24 s 1 +143896.17 3 +158026.21 6040.0 C57
2019-12-12 15:44:24 S 22 27 45.816 +85 46 42.85 V C57
2019-12-12 15:44:24 s 1 +143780.30 0 +160540.51 1750.0 C57
2019-12-12 16:44:24 S 22 27 39.367 +85 47 21.41 V C57
2019-12-12 16:44:24 s 1 +143495.94 5 +165510.98 3180.0 C57
2019-12-12 17:14:24 S 22 27 36.550 +85 47 40.56 V C57
2019-12-12 17:14:24 s 1 +143328.30 2 +167967.49 1210.0 C57
2019-12-12 17:44:24 S 22 27 33.617 +85 47 59.57 V C57
2019-12-12 17:44:24 s 1 +143144.21 9 +170405.05 2250.0 C57
2019-12-12 18:14:24 S 22 27 30.634 +85 48 18.47 V C57
2019-12-12 18:14:24 s 1 +142944.07 9 +172823.83 7360.0 C57
2019-12-12 18:44:24 S 22 27 28.116 +85 48 37.76 V C57
2019-12-12 18:44:24 s 1 +142728.25 7 +175223.99 7590.0 C57
2019-12-12 19:14:24 S 22 27 25.387 +85 48 56.34 V C57
2019-12-12 19:14:24 s 1 +142497.11 3 +177605.69 3910.0 C57
2019-12-12 19:44:24 S 22 27 23.364 +85 49 15.96 V C57
2019-12-12 19:44:24 s 1 +142250.99 7 +179969.08 7300.0 C57
2019-12-12 20:14:24 S 22 27 21.516 +85 49 35.11 V C57
2019-12-12 20:14:24 s 1 +141990.24 5 +182314.31 8710.0 C57
2019-12-12 20:44:24 S 22 27 19.651 +85 49 55.13 V C57
2019-12-12 20:44:24 s 1 +141715.18 6 +184641.54 9030.0 C57
2019-12-12 21:14:24 S 22 27 17.875 +85 50 13.81 V C57
2019-12-12 21:14:24 s 1 +141426.13 8 +186950.91 9150.0 C57
2019-12-12 21:44:24 S 22 27 15.590 +85 50 32.93 V C57
2019-12-12 21:44:24 s 1 +141123.40 8 +189242.57 9920.0 C57
2019-12-12 22:14:24 S 22 27 13.126 +85 50 52.58 V C57
2019-12-12 22:14:24 s 1 +140807.29 4 +191516.67 2190.0 C57
2019-12-12 22:44:24 S 22 27 11.100 +85 51 11.45 V C57
2019-12-12 22:44:24 s 1 +140478.08 6 +193773.35 6760.0 C57
2019-12-12 23:14:24 S 22 27 08.870 +85 51 30.20 V C57
2019-12-12 23:14:24 s 1 +140136.06 5 +196012.75 4410.0 C57
2019-12-12 23:44:24 S 22 27 07.289 +85 51 48.74 V C57
2019-12-12 23:44:24 s 1 +139781.50 2 +198235.01 5900.0 C57
2019-12-13 00:14:24 S 22 27 05.383 +85 52 07.68 V C57
2019-12-13 00:14:24 s 1 +139414.66 3 +200440.27 1970.0 C57
2019-12-13 00:44:24 S 22 27 03.907 +85 52 26.69 V C57
2019-12-13 00:44:24 s 1 +139035.80 5 +202628.66 3360.0 C57
2019-12-13 01:14:24 S 22 27 03.492 +85 52 46.13 V C57
2019-12-13 01:14:24 s 1 +138645.17 6 +204800.32 750.0 C57
2019-12-13 01:44:24 S 22 27 02.566 +85 53 05.75 V C57
2019-12-13 01:44:24 s 1 +138243.02 0 +206955.37 4820.0 C57
2019-12-13 02:14:24 S 22 27 01.080 +85 53 24.50 V C57
2019-12-13 02:14:24 s 1 +137829.57 2 +209093.96 6250.0 C57
2019-12-13 03:44:24 S 22 26 56.501 +85 54 20.99 V C57