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
2016-07-19 10:48:31 S 14 02 16.57 -31 49 22.9 L C51
2016-07-19 10:48:42 S 14 02 16.56 -31 49 23.5 L C51
2016-07-19 13:57:12 S 14 02 41.80 -31 52 00.4 L C51
2016-07-19 17:05:53 S 14 03 07.13 -31 54 37.5 L C51
2016-07-19 20:14:34 S 14 03 32.568 -31 57 12.92 L C51
2016-07-19 23:23:15 S 14 03 57.974 -31 59 51.25 L C51
2016-07-20 05:40:37 S 14 04 49.22 -32 05 04.0 L C51
2016-07-20 08:49:18 S 14 05 15.01 -32 07 41.4 L C51
2016-07-20 11:57:59 S 14 05 40.73 -32 10 18.6 L C51
2016-08-12 10:16:36 S 15 42 49.10 -38 26 28.7 L C51
2016-08-12 11:50:51 S 15 43 09.20 -38 27 08.2 L C51
2016-08-12 13:25:17 S 15 43 29.33 -38 27 48.8 L C51
2016-08-12 14:59:32 S 15 43 49.49 -38 28 29.1 L C51
2016-08-12 18:08:13 S 15 44 29.84 -38 29 48.6 L C51
2016-08-12 19:42:39 S 15 44 50.050 -38 30 28.94 L C51
2016-08-12 21:16:54 S 15 45 10.255 -38 31 08.08 L C51
2016-08-12 22:51:20 S 15 45 30.509 -38 31 47.89 L C51
2016-08-13 01:59:50 S 15 46 10.908 -38 33 05.58 L C51
2016-08-13 02:00:01 S 15 46 10.925 -38 33 06.23 L C51
2016-08-13 03:34:17 S 15 46 31.26 -38 33 43.9 L C51
2016-08-13 05:08:32 S 15 46 51.57 -38 34 22.3 L C51
2016-08-13 05:08:43 S 15 46 51.59 -38 34 22.2 L C51
2016-08-13 06:42:58 S 15 47 11.87 -38 35 00.6 L C51
2016-08-13 08:17:13 S 15 47 32.20 -38 35 38.7 L C51
2016-08-13 08:17:24 S 15 47 32.28 -38 35 39.0 L C51
2016-08-13 09:51:39 S 15 47 52.46 -38 36 16.6 L C51
2016-08-13 11:25:53 S 15 48 12.768 -38 36 54.65 L C51
2016-08-13 13:00:20 S 15 48 33.20 -38 37 31.8 L C51
2016-08-13 16:09:01 S 15 49 14.03 -38 38 46.1 L C51
2016-08-13 17:43:16 S 15 49 34.47 -38 39 22.9 L C51
2016-08-13 19:17:42 S 15 49 54.90 -38 40 00.3 L C51
2016-08-13 20:51:57 S 15 50 15.317 -38 40 35.44 L C51
2016-08-14 00:00:38 S 15 50 56.306 -38 41 47.90 L C51
2016-08-14 01:35:04 S 15 51 16.74 -38 42 24.1 L C51
2016-08-14 03:09:19 S 15 51 37.21 -38 42 59.4 L C51
2016-08-14 04:43:45 S 15 51 57.74 -38 43 35.5 L C51
2016-08-14 06:17:59 S 15 52 18.25 -38 44 10.2 L C51
2016-08-14 11:01:07 S 15 53 19.968 -38 45 54.47 L C51
2016-08-14 12:35:21 S 15 53 40.52 -38 46 28.5 L C51
2016-08-14 14:09:48 S 15 54 01.19 -38 47 03.3 L C51
2016-08-14 17:18:29 S 15 54 42.46 -38 48 10.3 L C51
2016-08-14 18:52:44 S 15 55 03.007 -38 48 44.75 L C51
2016-08-14 20:27:10 S 15 55 23.683 -38 49 18.16 L C51
2016-08-14 22:01:25 S 15 55 44.350 -38 49 51.06 L C51
2016-08-14 23:35:51 S 15 56 05.030 -38 50 24.50 L C51
2016-08-15 01:10:06 S 15 56 25.74 -38 50 56.6 L C51
2016-08-15 02:44:21 S 15 56 46.41 -38 51 29.1 L C51
2016-08-15 05:53:02 S 15 57 27.95 -38 52 33.3 L C51
2016-08-15 09:01:43 S 15 58 09.40 -38 53 37.1 L C51
2016-08-15 10:36:09 S 15 58 30.23 -38 54 08.7 L C51