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
2019-11-13 02:44:25 s 1 -180036.62 7 +160055.21 5950.0 C57
2019-11-13 03:14:25 S 00 07 51.713 +76 11 56.58 V C57
2019-11-13 03:14:25 s 1 -179936.38 4 +157820.21 4220.0 C57
2019-11-13 03:44:25 S 00 07 48.281 +76 12 29.66 V C57
2019-11-13 03:44:25 s 1 -179820.06 2 +155571.04 1320.0 C57
2019-11-13 04:14:25 S 00 07 44.302 +76 13 03.43 V C57
2019-11-13 04:14:25 s 1 -179687.36 4 +153307.66 6460.0 C57
2019-11-13 04:44:25 S 00 07 40.505 +76 13 35.26 V C57
2019-11-13 04:44:25 s 1 -179537.98 9 +151030.00 8780.0 C57
2019-11-13 05:14:25 S 00 07 36.624 +76 14 08.95 V C57
2019-11-13 05:14:25 s 1 -179371.62 4 +148737.99 7440.0 C57
2019-11-13 05:44:25 S 00 07 33.115 +76 14 43.08 V C57
2019-11-13 05:44:25 s 1 -179187.94 8 +146431.57 1540.0 C57
2019-11-13 06:14:25 S 00 07 29.666 +76 15 15.52 V C57
2019-11-13 06:14:25 s 1 -178986.63 2 +144110.68 170.0 C57
2019-11-13 06:44:25 S 00 07 25.711 +76 15 49.50 V C57
2019-11-13 06:44:25 s 1 -178767.33 6 +141775.27 2390.0 C57
2019-11-13 07:14:25 S 00 07 22.356 +76 16 22.94 V C57
2019-11-13 07:14:25 s 1 -178529.71 3 +139425.26 7240.0 C57
2019-11-13 07:44:25 S 00 07 18.638 +76 16 55.31 V C57
2019-11-13 07:44:25 s 1 -178273.40 3 +137060.60 3720.0 C57
2019-11-13 08:12:58 C 00 09 28.65 +76 26 36.0 V T05
2019-11-13 08:14:25 S 00 07 15.002 +76 17 29.00 V C57
2019-11-13 08:14:25 s 1 -177998.03 5 +134681.24 800.0 C57
2019-11-13 08:17:40 C 00 09 27.61 +76 26 41.1 V T05
2019-11-13 08:26:23 C 00 09 25.70 +76 26 50.4 V T05
2019-11-13 08:42:34 C 00 09 22.14 +76 27 07.7 V T05
2019-11-13 08:44:25 S 00 07 11.563 +76 18 02.63 V C57
2019-11-13 08:44:25 s 1 -177703.23 1 +132287.11 7430.0 C57
2019-11-13 09:14:25 S 00 07 07.860 +76 18 36.14 V C57
2019-11-13 09:14:25 s 1 -177388.59 7 +129878.17 2520.0 C57
2019-11-13 09:44:25 S 00 07 04.416 +76 19 09.59 V C57
2019-11-13 09:44:25 s 1 -177053.73 1 +127454.36 4940.0 C57
2019-11-13 10:14:25 S 00 07 00.674 +76 19 43.32 V C57
2019-11-13 10:14:25 s 1 -176698.21 6 +125015.62 3530.0 C57
2019-11-13 10:44:25 S 00 06 57.254 +76 20 16.44 V C57
2019-11-13 10:44:25 s 1 -176321.62 2 +122561.92 7100.0 C57
2019-11-13 11:14:25 S 00 06 53.808 +76 20 50.50 V C57
2019-11-13 11:14:25 s 1 -175923.50 9 +120093.20 4410.0 C57
2019-11-13 11:44:25 S 00 06 50.256 +76 21 24.48 V C57
2019-11-13 11:44:25 s 1 -175503.41 9 +117609.42 4180.0 C57
2019-11-13 12:14:25 S 00 06 47.069 +76 21 57.92 V C57
2019-11-13 12:14:25 s 1 -175060.88 3 +115110.55 5100.0 C57
2019-11-13 12:44:25 S 00 06 43.361 +76 22 33.24 V C57
2019-11-13 12:44:25 s 1 -174595.41 3 +112596.53 5820.0 C57
2019-11-13 13:14:25 S 00 06 39.761 +76 23 04.99 V C57
2019-11-13 13:14:25 s 1 -174106.51 0 +110067.35 4910.0 C57
2019-11-13 13:44:25 S 00 06 36.346 +76 23 40.70 V C57
2019-11-13 13:44:25 s 1 -173593.65 5 +107522.96 940.0 C57
2019-11-13 15:41:54 C 00 08 04.09 +76 34 47.0 q C97