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
2001-02-03 17:26:11 C 01 58 53.08 +39 17 14.2 049
2001-02-03 17:32:37 C 01 58 54.48 +39 17 16.4 049
2001-02-03 17:38:20 C 01 58 55.77 +39 17 18.6 049
2001-02-04 16:59:14 C 02 04 05.37 +39 25 30.2 049
2001-02-04 17:02:20 C 02 04 05.96 +39 25 31.2 049
2001-02-04 17:07:38 C 02 04 07.14 +39 25 32.8 049
2001-02-10 17:23:33 C 02 36 46.08 +40 00 54.4 049
2001-02-10 17:27:06 C 02 36 47.02 +40 00 55.2 049
2001-02-10 17:30:14 C 02 36 47.64 +40 00 55.5 049
2001-02-13 02:21:36 C 02 49 55.78 +40 07 18.6 17.8 c 704
2001-02-13 02:41:21 C 02 50 00.24 +40 07 20.2 17.9 c 704
2001-02-13 03:01:06 C 02 50 04.76 +40 07 21.6 17.8 c 704
2001-02-13 03:20:51 C 02 50 09.31 +40 07 22.3 17.7 c 704
2001-02-13 03:40:38 C 02 50 13.87 +40 07 23.0 17.7 c 704
2001-02-25 18:42:42 C 04 00 22.53 +39 25 29.9 118
2001-02-25 18:52:44 C 04 00 24.79 +39 25 25.7 118
2001-03-14 02:35:15 C 05 23 30.77 +35 53 40.3 18.0 c 704
2001-03-14 03:13:57 C 05 23 38.21 +35 53 11.4 18.7 c 704
2001-03-14 03:33:11 C 05 23 41.90 +35 52 57.8 18.3 c 704
2001-03-14 03:52:05 C 05 23 45.56 +35 52 44.8 18.1 c 704
2001-03-15 02:32:00 C 05 28 08.38 +35 36 39.9 18.0 c 704
2001-03-15 02:51:46 C 05 28 11.94 +35 36 26.1 19.5 c 704
2001-03-15 03:10:46 C 05 28 15.67 +35 36 11.5 18.2 c 704
2001-03-15 03:29:49 C 05 28 19.27 +35 35 58.0 18.0 c 704
2001-03-15 03:50:08 C 05 28 23.16 +35 35 42.7 18.5 c 704
2001-03-16 02:59:55 C 05 32 48.28 +35 18 57.9 18.2 c 704
2001-03-16 03:18:10 C 05 32 51.68 +35 18 44.3 18.2 c 704
2001-03-16 03:36:26 C 05 32 55.14 +35 18 30.8 18.4 c 704
2001-03-16 03:54:46 C 05 32 58.50 +35 18 16.5 18.9 c 704
2001-03-17 02:38:36 C 05 37 15.69 +35 01 33.1 18.0 c 704
2001-03-17 02:57:02 C 05 37 19.05 +35 01 19.2 18.2 c 704
2001-03-17 03:16:12 C 05 37 22.64 +35 01 05.1 18.6 c 704
2001-03-17 03:34:43 C 05 37 26.04 +35 00 51.3 18.1 c 704
2001-03-26 02:47:42 C 06 15 27.92 +32 11 58.5 18.4 c 704
2001-03-26 03:05:38 C 06 15 30.76 +32 11 42.9 18.6 c 704
2001-03-26 03:23:51 C 06 15 33.86 +32 11 26.6 18.8 c 704
2001-03-26 03:41:34 C 06 15 36.67 +32 11 13.2 18.6 c 704
2001-05-11 06:05:47 C 08 37 13.90 +17 19 42.9 c 608
2001-05-11 06:21:28 C 08 37 15.49 +17 19 31.3 c 608
2001-05-11 06:36:12 C 08 37 16.96 +17 19 20.2 c 608
2001-05-19 06:44:22 C 08 56 03.98 +15 00 15.3 c 608
2001-05-19 06:59:10 C 08 56 05.40 +15 00 04.8 c 608
2001-05-19 07:14:26 C 08 56 06.85 +14 59 53.7 c 608
2001-05-26 06:19:42 C 09 11 37.62 +13 03 02.7 c 608
2001-05-26 06:35:01 C 09 11 39.02 +13 02 52.2 c 608
2001-05-26 06:49:52 C 09 11 40.33 +13 02 41.6 c 608
2004-06-24 18:54:57 C 01 24 13.27 +12 58 44.3 r E12
2004-06-24 19:11:14 C 01 24 14.77 +12 58 59.0 r E12
2004-06-24 19:27:39 C 01 24 16.24 +12 59 14.9 r E12
2004-06-24 19:44:09 C 01 24 17.74 +12 59 28.0 r E12