168378 (1997 ET30)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4495441615 ± 7.44e-09
Semi-major axis (a)2.1369590145 AU ± 4.33e-09
Inclination (i)6.81171260° ± 2.15e-06
Long. of Asc. Node (Ω)23.20967142° ± 6.26e-06
Arg. of Perihelion (ω)263.36106272° ± 7.07e-06
Mean Anomaly (M)352.56084806° ± 4.46e-06
Mean Motion (n)0.3155135296°/day ± 9.58e-10
Perihelion dist (q)1.17630157 AU ± 1.61e-08
Aphelion dist (Q)3.09761646 AU ± 1.71e-08
Orbital Period3.12387962 yr ± 9.49e-09
Physical Parameters
H (abs. magnitude)16.91
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.025″
Uncertainty0
Orbit TypeAmor
MOID0.203992 AU
Observations Used877
Gaia Obs Used30
Oppositions19
Arc Total1988-2016
First Observation Used1988-09-14
Last Observation Used2025-04-23
Observations (1241)
Date Type RA Dec Mag Band Observatory
2010-08-07 21:56:14 S 02 50 36.32 +12 58 04.7 L C51
2010-08-08 02:42:06 S 02 50 51.10 +12 59 55.2 L C51
2010-08-08 05:52:37 S 02 51 00.84 +13 01 08.3 L C51
2010-08-08 09:03:09 S 02 51 10.49 +13 02 23.0 L C51
2010-08-08 12:13:39 S 02 51 20.22 +13 03 35.4 L C51
2010-08-09 09:49:11 C 02 52 25.33 +13 11 49.0 19.6 c 704
2010-08-09 10:06:02 C 02 52 26.16 +13 11 55.4 20.3 c 704
2010-08-09 10:22:54 C 02 52 26.93 +13 12 01.8 20.2 c 704
2010-08-09 10:57:52 C 02 52 28.57 +13 12 15.3 19.4 c 704
2010-08-14 09:35:16 C 02 57 54.59 +13 55 22.3 20.7 c 704
2010-08-14 09:52:43 C 02 57 55.28 +13 55 28.9 20.2 c 704
2010-08-14 10:11:03 C 02 57 55.93 +13 55 35.1 20.6 c 704
2010-08-14 10:28:57 C 02 57 56.70 +13 55 42.1 20.4 c 704
2010-09-30 09:26:42 C 02 58 34.10 +17 44 59.2 r 703
2010-09-30 09:36:32 C 02 58 33.63 +17 44 59.4 r 703
2010-09-30 09:46:34 C 02 58 33.16 +17 45 01.4 r 703
2010-09-30 09:56:32 C 02 58 32.77 +17 45 01.4 r 703
2010-10-06 01:24:56 C 02 51 56.30 +17 47 46.4 r J75
2010-10-06 01:42:09 C 02 51 55.36 +17 47 45.9 r J75
2010-10-06 01:59:15 C 02 51 54.41 +17 47 46.1 r J75
2010-10-08 07:06:26 C 02 49 00.66 +17 47 12.3 19.0 c 704
2010-10-08 07:25:30 C 02 48 59.55 +17 47 11.3 19.3 c 704
2010-10-08 07:44:36 C 02 48 58.41 +17 47 11.4 19.0 c 704
2010-10-08 08:03:45 C 02 48 57.32 +17 47 10.9 19.3 c 704
2010-10-08 08:22:56 C 02 48 56.22 +17 47 10.7 19.2 c 704
2010-10-08 08:58:37 C 02 48 54.18 +17 47 09.5 r 703
2010-10-08 09:08:41 C 02 48 53.60 +17 47 09.8 r 703
2010-10-08 09:18:43 C 02 48 53.02 +17 47 09.4 r 703
2010-10-08 09:28:49 C 02 48 52.41 +17 47 09.3 r 703
2010-10-08 09:40:29 C 02 48 52.160 +17 47 10.08 L F51
2010-10-08 10:06:41 C 02 48 50.671 +17 47 09.72 L F51
2010-10-08 10:32:56 C 02 48 49.124 +17 47 09.17 L F51
2010-10-08 11:00:26 C 02 48 47.539 +17 47 08.75 L F51
2010-10-10 13:00:43 C 02 45 54.975 +17 45 41.92 L F51
2010-10-10 13:17:26 C 02 45 53.956 +17 45 41.28 L F51
2010-10-13 06:48:38 C 02 41 59.06 +17 42 32.8 r 703
2010-10-13 06:58:39 C 02 41 58.45 +17 42 33.4 r 703
2010-10-13 07:08:42 C 02 41 57.80 +17 42 32.7 r 703
2010-10-13 07:18:46 C 02 41 57.12 +17 42 31.0 r 703
2010-10-14 12:11:07 C 02 40 10.290 +17 40 47.11 L F51
2010-10-14 12:28:04 C 02 40 09.193 +17 40 45.86 L F51
2010-10-16 08:26:37 C 02 37 24.24 +17 37 33.9 18.8 c 704
2010-10-16 08:46:34 C 02 37 22.94 +17 37 32.2 19.1 c 704
2010-10-16 09:06:24 C 02 37 21.64 +17 37 30.5 18.8 c 704
2010-10-16 09:26:28 C 02 37 20.32 +17 37 28.7 19.3 c 704
2010-10-16 09:46:25 C 02 37 19.03 +17 37 27.1 18.9 c 704
2010-10-19 21:41:55 C 02 31 58.12 +17 29 52.2 u 160
2010-10-19 21:43:53 C 02 31 57.99 +17 29 52.3 u 160
2010-10-26 22:13:09 C 02 21 08.45 +17 09 56.8 u A13
2010-10-26 22:42:35 C 02 21 06.44 +17 09 52.8 u A13