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
2019-11-18 21:44:25 s 1 +88517.505 0 +329041.96 1850.0 C57
2019-11-18 22:14:25 S 23 35 51.214 +78 43 09.98 V C57
2019-11-18 22:14:25 s 1 +87629.143 0 +330122.88 4080.0 C57
2019-11-18 22:44:25 S 23 35 43.423 +78 43 32.23 V C57
2019-11-18 22:44:25 s 1 +86738.012 0 +331193.22 5380.0 C57
2019-11-18 23:14:25 S 23 35 35.808 +78 43 57.40 V C57
2019-11-18 23:14:25 s 1 +85844.159 0 +332253.01 5880.0 C57
2019-11-18 23:44:25 S 23 35 28.229 +78 44 19.28 V C57
2019-11-18 23:44:25 s 1 +84947.633 0 +333302.30 5720.0 C57
2019-11-19 00:14:25 S 23 35 20.611 +78 44 43.51 V C57
2019-11-19 00:14:25 s 1 +84048.481 0 +334341.11 5060.0 C57
2019-11-19 00:44:25 S 23 35 13.044 +78 45 05.87 V C57
2019-11-19 00:44:25 s 1 +83146.749 0 +335369.49 4020.0 C57
2019-11-19 01:14:25 S 23 35 05.556 +78 45 30.28 V C57
2019-11-19 01:14:25 s 1 +82242.484 0 +336387.47 2740.0 C57
2019-11-19 01:44:25 S 23 34 57.780 +78 45 53.57 V C57
2019-11-19 01:44:25 s 1 +81335.732 0 +337395.08 1350.0 C57
2019-11-19 02:14:25 S 23 34 50.294 +78 46 16.54 V C57
2019-11-19 02:14:25 s 1 +80426.536 0 +338392.36 9990.0 C57
2019-11-19 02:44:25 S 23 34 42.744 +78 46 39.68 V C57
2019-11-19 02:44:25 s 1 +79514.941 0 +339379.35 8790.0 C57
2019-11-19 03:14:25 S 23 34 35.251 +78 47 03.12 V C57
2019-11-19 03:14:25 s 1 +78600.991 0 +340356.07 7870.0 C57
2019-11-19 03:44:25 S 23 34 27.641 +78 47 25.76 V C57
2019-11-19 03:44:25 s 1 +77684.730 0 +341322.57 7370.0 C57
2019-11-19 04:14:25 S 23 34 20.177 +78 47 49.99 V C57
2019-11-19 04:14:25 s 1 +76766.200 0 +342278.86 7420.0 C57
2019-11-19 04:44:25 S 23 34 12.646 +78 48 12.20 V C57
2019-11-19 04:44:25 s 1 +75845.443 0 +343225.00 8120.0 C57
2019-11-19 04:55:37 C 23 40 57.73 +78 46 38.2 U I41
2019-11-19 04:57:00 C 23 40 57.41 +78 46 39.3 U I41
2019-11-19 05:14:25 S 23 34 05.059 +78 48 35.89 V C57
2019-11-19 05:14:25 s 1 +74922.501 0 +344161.00 9610.0 C57
2019-11-19 05:44:25 S 23 33 57.701 +78 48 58.97 V C57
2019-11-19 05:44:25 s 1 +73997.415 0 +345086.90 2020.0 C57
2019-11-19 07:49:27 C 23 40 18.20 +78 49 05.1 U I41
2019-11-19 15:47:23 C 23 38 45.08 +78 56 21.9 q C97
2019-11-19 15:49:14 C 23 38 44.56 +78 56 23.5 q C97
2019-11-19 15:51:05 C 23 38 44.16 +78 56 25.1 q C97
2019-11-19 15:52:56 C 23 38 43.72 +78 56 26.8 q C97
2019-11-19 15:54:47 C 23 38 43.36 +78 56 28.5 q C97
2019-11-19 15:56:38 C 23 38 42.81 +78 56 30.1 q C97
2019-11-19 15:58:29 C 23 38 42.42 +78 56 31.7 q C97
2019-11-19 16:00:20 C 23 38 41.96 +78 56 33.4 q C97
2019-11-19 16:02:11 C 23 38 41.49 +78 56 34.9 q C97
2019-11-19 16:04:03 C 23 38 41.03 +78 56 36.7 q C97
2019-11-21 05:28:25 C 23 30 58.11 +79 28 49.4 V T05
2019-11-21 05:32:34 C 23 30 57.05 +79 28 52.9 V T05
2019-11-21 05:41:29 C 23 30 55.06 +79 29 00.3 V T05
2019-11-21 05:58:43 C 23 30 50.88 +79 29 14.8 V T05