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
2010-10-27 21:26:01 C 02 19 40.52 +17 06 49.4 r J75
2010-10-27 21:46:15 C 02 19 39.18 +17 06 47.1 r J75
2010-10-27 22:06:28 C 02 19 37.90 +17 06 44.2 r J75
2010-10-28 06:08:03 C 02 19 07.53 +17 05 39.1 r 703
2010-10-28 06:18:54 C 02 19 06.88 +17 05 37.2 r 703
2010-10-28 06:29:39 C 02 19 06.16 +17 05 36.7 r 703
2010-10-28 06:40:34 C 02 19 05.48 +17 05 34.6 r 703
2010-10-28 21:52:06 C 02 18 08.34 +17 03 26.8 o 461
2010-10-28 22:04:48 C 02 18 07.54 +17 03 25.3 o 461
2010-10-30 12:42:52 C 02 15 44.44 +16 57 57.7 r D29
2010-10-30 13:02:08 C 02 15 43.20 +16 57 55.3 r D29
2010-10-30 13:20:38 C 02 15 42.03 +16 57 52.3 r D29
2010-10-30 13:40:23 C 02 15 40.81 +16 57 49.7 r D29
2010-11-01 06:18:14 C 02 13 12.61 +16 51 54.6 r 703
2010-11-01 06:30:21 C 02 13 12.00 +16 51 55.7 r 703
2010-11-01 06:42:29 C 02 13 11.17 +16 51 52.9 r 703
2010-11-01 06:54:41 C 02 13 10.45 +16 51 52.5 r 703
2010-11-03 04:40:27 C 02 10 28.52 +16 45 05.1 r 703
2010-11-03 04:47:02 C 02 10 28.09 +16 45 03.8 r 703
2010-11-03 04:53:37 C 02 10 27.66 +16 45 03.4 r 703
2010-11-03 05:00:12 C 02 10 27.26 +16 45 01.7 r 703
2010-11-07 06:15:53 C 02 05 00.60 +16 30 32.4 19.3 c 704
2010-11-07 06:34:01 C 02 04 59.57 +16 30 29.5 19.4 c 704
2010-11-07 06:52:08 C 02 04 58.58 +16 30 27.0 19.5 c 704
2010-11-07 07:10:17 C 02 04 57.56 +16 30 24.4 19.9 c 704
2010-11-07 07:28:25 C 02 04 56.54 +16 30 20.8 20.1 c 704
2010-11-09 03:08:26 C 02 02 39.91 +16 23 56.1 r 703
2010-11-09 03:15:47 C 02 02 39.55 +16 23 54.7 r 703
2010-11-09 03:23:16 C 02 02 39.12 +16 23 52.2 r 703
2010-11-09 03:30:44 C 02 02 38.72 +16 23 52.8 r 703
2010-11-10 06:25:40 C 02 01 17.09 +16 19 59.1 19.2 c 704
2010-11-10 07:20:40 C 02 01 14.24 +16 19 50.3 19.6 c 704
2010-11-10 07:38:59 C 02 01 13.32 +16 19 48.3 19.8 c 704
2010-12-04 04:51:25 C 01 43 29.17 +15 24 36.6 r G96
2010-12-04 05:02:20 C 01 43 29.02 +15 24 36.2 r G96
2010-12-04 05:13:16 C 01 43 28.88 +15 24 35.8 r G96
2010-12-04 05:24:13 C 01 43 28.70 +15 24 35.6 r G96
2011-12-29 07:14:56 C 08 10 35.00 +30 03 12.9 r G96
2011-12-29 07:27:27 C 08 10 34.42 +30 03 15.2 r G96
2011-12-29 07:40:03 C 08 10 33.85 +30 03 17.8 r G96
2011-12-29 07:52:40 C 08 10 33.31 +30 03 20.5 r G96
2012-01-19 06:04:37 C 07 45 17.71 +31 22 55.5 r G96
2012-01-19 06:16:19 C 07 45 17.06 +31 22 56.2 r G96
2012-01-19 06:28:03 C 07 45 16.45 +31 22 58.0 r G96
2012-01-19 06:39:46 C 07 45 15.76 +31 22 59.1 r G96
2012-01-20 04:51:55 C 07 44 05.06 +31 25 19.9 r G96
2012-01-20 05:02:50 C 07 44 04.48 +31 25 20.5 r G96
2012-01-20 05:13:45 C 07 44 03.91 +31 25 22.1 r G96
2012-01-20 05:24:41 C 07 44 03.33 +31 25 23.9 r G96
2012-01-28 11:14:47 C 07 33 46.758 +31 40 50.83 L F51