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
2019-11-08 03:14:25 S 00 27 20.921 +73 58 03.43 V C57
2019-11-08 03:14:25 s 1 -12444.169 0 +385491.31 1460.0 C57
2019-11-08 03:44:25 S 00 27 15.408 +73 58 37.31 V C57
2019-11-08 03:44:25 s 1 -13449.477 0 +385630.09 780.0 C57
2019-11-08 04:14:25 S 00 27 09.806 +73 59 13.99 V C57
2019-11-08 04:14:25 s 1 -14454.476 0 +385760.19 8630.0 C57
2019-11-08 04:44:25 S 00 27 04.195 +73 59 50.42 V C57
2019-11-08 04:44:25 s 1 -15459.143 0 +385881.62 5080.0 C57
2019-11-08 05:14:25 S 00 26 58.572 +74 00 25.34 V C57
2019-11-08 05:14:25 s 1 -16463.455 0 +385994.37 180.0 C57
2019-11-08 05:44:25 S 00 26 52.982 +74 01 01.52 V C57
2019-11-08 05:44:25 s 1 -17467.392 0 +386098.47 4000.0 C57
2019-11-08 06:14:25 S 00 26 47.366 +74 01 36.12 V C57
2019-11-08 06:14:25 s 1 -18470.930 0 +386193.92 6620.0 C57
2019-11-08 06:44:25 S 00 26 41.774 +74 02 12.66 V C57
2019-11-08 06:44:25 s 1 -19474.047 0 +386280.73 8080.0 C57
2019-11-08 07:14:25 S 00 26 36.322 +74 02 47.11 V C57
2019-11-08 07:14:25 s 1 -20476.723 0 +386358.89 8450.0 C57
2019-11-08 07:44:25 S 00 26 30.696 +74 03 23.33 V C57
2019-11-08 07:44:25 s 1 -21478.934 0 +386428.42 7800.0 C57
2019-11-08 08:14:25 S 00 26 25.190 +74 03 58.75 V C57
2019-11-08 08:14:25 s 1 -22480.659 0 +386489.33 6190.0 C57
2019-11-08 08:44:25 S 00 26 19.810 +74 04 33.20 V C57
2019-11-08 08:44:25 s 1 -23481.875 0 +386541.61 3690.0 C57
2019-11-08 09:14:25 S 00 26 14.100 +74 05 07.15 V C57
2019-11-08 09:14:25 s 1 -24482.562 0 +386585.28 350.0 C57
2019-11-08 09:44:25 S 00 26 08.122 +74 05 48.55 V C57
2019-11-08 09:44:25 s 1 -25482.697 0 +386620.33 6250.0 C57
2019-11-08 10:44:25 S 00 25 57.334 +74 06 56.02 V C57
2019-11-08 10:44:25 s 1 -27481.222 0 +386664.64 5970.0 C57
2019-11-08 11:14:25 S 00 25 51.902 +74 07 31.33 V C57
2019-11-08 11:14:25 s 1 -28479.570 0 +386673.90 9930.0 C57
2019-11-08 11:44:25 S 00 25 46.464 +74 08 07.98 V C57
2019-11-08 11:44:25 s 1 -29477.278 0 +386674.56 3370.0 C57
2019-11-08 12:14:25 S 00 25 40.906 +74 08 41.75 V C57
2019-11-08 12:14:25 s 1 -30474.325 0 +386666.64 6350.0 C57
2019-11-08 12:44:25 S 00 25 35.196 +74 09 18.14 V C57
2019-11-08 12:44:25 s 1 -31470.690 0 +386650.14 8940.0 C57
2019-11-08 13:14:25 S 00 25 29.652 +74 09 52.52 V C57
2019-11-08 13:14:25 s 1 -32466.349 0 +386625.06 1200.0 C57
2019-11-08 13:44:25 S 00 25 24.382 +74 10 28.06 V C57
2019-11-08 13:44:25 s 1 -33461.283 0 +386591.40 3180.0 C57
2019-11-08 14:14:25 S 00 25 18.691 +74 11 02.90 V C57
2019-11-08 14:14:25 s 1 -34455.467 0 +386549.17 4960.0 C57
2019-11-08 14:44:25 S 00 25 13.238 +74 11 38.18 V C57
2019-11-08 14:44:25 s 1 -35448.882 0 +386498.38 6590.0 C57
2019-11-08 15:14:25 S 00 25 07.699 +74 12 15.05 V C57
2019-11-08 15:14:25 s 1 -36441.506 0 +386439.01 8130.0 C57
2019-11-08 15:44:25 S 00 25 02.299 +74 12 48.06 V C57
2019-11-08 15:44:25 s 1 -37433.315 0 +386371.09 9660.0 C57