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 15:43:46 C 00 08 03.72 +76 34 49.0 q C97
2019-11-13 15:44:25 S 00 06 23.002 +76 25 55.38 V C57
2019-11-13 15:44:25 s 1 -171291.74 8 +97192.996 3480.0 C57
2019-11-13 15:45:39 C 00 08 03.36 +76 34 51.0 q C97
2019-11-13 15:47:31 C 00 08 02.89 +76 34 53.3 q C97
2019-11-13 15:49:24 C 00 08 02.57 +76 34 55.1 q C97
2019-11-13 15:51:16 C 00 08 02.13 +76 34 57.1 q C97
2019-11-13 15:53:09 C 00 08 01.70 +76 34 59.3 q C97
2019-11-13 15:55:01 C 00 08 01.26 +76 35 01.4 q C97
2019-11-13 15:56:54 C 00 08 00.87 +76 35 03.5 q C97
2019-11-13 15:58:47 C 00 08 00.46 +76 35 05.5 q C97
2019-11-13 16:14:25 S 00 06 19.428 +76 26 30.59 V C57
2019-11-13 16:14:25 s 1 -170650.74 3 +94572.337 540.0 C57
2019-11-13 17:14:25 S 00 06 13.068 +76 27 38.88 V C57
2019-11-13 17:14:25 s 1 -169285.74 8 +89285.226 4050.0 C57
2019-11-13 17:44:25 S 00 06 09.706 +76 28 13.58 V C57
2019-11-13 17:44:25 s 1 -168560.42 6 +86618.806 6750.0 C57
2019-11-13 18:14:25 S 00 06 06.557 +76 28 47.21 V C57
2019-11-13 18:14:25 s 1 -167805.62 8 +83937.179 760.0 C57
2019-11-13 18:44:25 S 00 06 02.902 +76 29 22.67 V C57
2019-11-13 18:44:25 s 1 -167020.62 7 +81240.384 4040.0 C57
2019-11-13 19:14:25 S 00 05 59.676 +76 29 57.37 V C57
2019-11-13 19:14:25 s 1 -166204.67 1 +78528.472 4440.0 C57
2019-11-13 19:44:25 S 00 05 56.714 +76 30 32.00 V C57
2019-11-13 19:44:25 s 1 -165356.97 9 +75801.506 9730.0 C57
2019-11-13 20:14:25 S 00 05 53.196 +76 31 06.85 V C57
2019-11-13 20:14:25 s 1 -164476.74 3 +73059.561 7620.0 C57
2019-11-13 20:44:25 S 00 05 50.275 +76 31 41.38 V C57
2019-11-13 20:44:25 s 1 -163563.12 3 +70302.727 5690.0 C57
2019-11-13 20:45:58 C 00 07 02.26 +76 40 11.8 V C95
2019-11-13 20:49:13 C 00 07 01.53 +76 40 15.4 V C95
2019-11-13 20:52:27 C 00 07 00.86 +76 40 18.7 V C95
2019-11-13 20:55:42 C 00 07 00.10 +76 40 22.2 V C95
2019-11-13 21:14:25 S 00 05 46.769 +76 32 16.51 V C57
2019-11-13 21:14:25 s 1 -162615.24 8 +67531.109 1460.0 C57
2019-11-13 22:14:25 S 00 05 40.841 +76 33 26.14 V C57
2019-11-13 22:14:25 s 1 -160613.08 7 +61944.032 5630.0 C57
2019-11-13 22:44:25 S 00 05 37.512 +76 34 01.38 V C57
2019-11-13 22:44:25 s 1 -159556.88 7 +59128.877 8540.0 C57
2019-11-13 23:14:25 S 00 05 34.370 +76 34 37.88 V C57
2019-11-13 23:14:25 s 1 -158462.60 5 +56299.548 8140.0 C57
2019-11-13 23:44:25 S 00 05 31.315 +76 35 12.77 V C57
2019-11-13 23:44:25 s 1 -157329.18 9 +53456.256 1400.0 C57
2019-11-14 00:14:25 S 00 05 28.382 +76 35 47.58 V C57
2019-11-14 00:14:25 s 1 -156155.54 6 +50599.235 5160.0 C57
2019-11-14 00:44:25 S 00 05 25.188 +76 36 24.59 V C57
2019-11-14 00:44:25 s 1 -154940.53 9 +47728.752 6130.0 C57
2019-11-14 01:14:25 S 00 05 22.130 +76 36 58.72 V C57
2019-11-14 01:14:25 s 1 -153682.98 7 +44845.103 890.0 C57
2019-11-14 04:18:52 C 00 05 33.59 +76 48 22.2 U I41