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
2007-08-22 10:26:10 C 03 56 53.40 +21 13 53.3 o 691
2007-10-21 09:09:23 C 03 56 44.91 +25 09 48.4 r G96
2007-10-21 09:15:59 C 03 56 44.59 +25 09 48.2 r G96
2007-10-21 09:22:38 C 03 56 44.26 +25 09 48.7 r G96
2007-10-21 09:29:17 C 03 56 43.94 +25 09 48.9 r G96
2007-10-21 10:26:29 C 03 56 41.06 +25 09 50.5 r G96
2007-10-21 10:31:11 C 03 56 40.81 +25 09 50.3 r G96
2007-10-21 10:35:57 C 03 56 40.59 +25 09 50.5 r G96
2007-10-21 10:40:44 C 03 56 40.23 +25 09 51.0 r G96
2007-10-21 10:57:53 C 03 56 39.48 +25 09 51.3 r G96
2007-10-21 11:01:38 C 03 56 39.30 +25 09 51.4 r G96
2007-10-21 11:05:26 C 03 56 39.08 +25 09 51.6 r G96
2007-10-21 11:09:13 C 03 56 38.79 +25 09 50.4 r G96
2007-11-01 04:59:33 C 03 42 36.08 +25 07 53.3 o 691
2007-11-01 05:24:57 C 03 42 34.52 +25 07 52.1 o 691
2007-11-01 05:50:22 C 03 42 32.98 +25 07 51.3 o 691
2007-11-05 04:48:18 C 03 36 48.22 +25 02 12.9 o 691
2007-11-05 05:13:46 C 03 36 46.61 +25 02 11.1 o 691
2007-11-05 05:39:14 C 03 36 45.02 +25 02 09.2 o 691
2007-11-07 03:47:18 C 03 33 54.25 +24 58 28.8 o 691
2007-11-07 04:12:47 C 03 33 52.66 +24 58 26.2 o 691
2007-11-07 04:38:16 C 03 33 51.04 +24 58 24.7 o 691
2007-11-07 07:38:41 C 03 33 39.70 +24 58 10.5 20.1 c 704
2007-11-07 08:14:21 C 03 33 37.29 +24 58 07.2 20.2 c 704
2007-11-07 08:50:04 C 03 33 34.97 +24 58 03.1 20.1 c 704
2007-11-09 03:44:20 C 03 30 55.56 +24 54 03.5 o 691
2007-11-09 04:09:45 C 03 30 53.95 +24 54 00.7 o 691
2007-11-09 04:40:06 C 03 30 52.00 +24 53 57.9 o 691
2007-11-13 03:40:15 C 03 24 58.18 +24 43 32.6 o 691
2007-11-13 04:05:39 C 03 24 56.59 +24 43 29.5 o 691
2007-11-13 04:31:03 C 03 24 54.99 +24 43 26.3 o 691
2007-11-17 03:12:52 C 03 19 08.91 +24 31 06.7 o 691
2007-11-17 03:34:36 C 03 19 07.51 +24 31 03.2 o 691
2007-11-17 03:56:20 C 03 19 06.30 +24 31 01.5 o 691
2009-02-03 04:40:35 C 08 07 21.68 +30 17 40.4 r G96
2009-02-03 04:48:31 C 08 07 21.28 +30 17 41.6 r G96
2009-02-03 04:56:34 C 08 07 20.85 +30 17 41.8 r G96
2009-02-03 05:06:38 C 08 07 20.31 +30 17 42.8 r G96
2010-07-20 02:37:20 C 02 22 09.06 +09 34 28.7 r J75
2010-07-20 02:55:59 C 02 22 10.33 +09 34 38.7 r J75
2010-07-20 03:14:37 C 02 22 11.77 +09 34 49.0 r J75
2010-08-07 02:53:19 S 02 49 37.05 +12 50 36.6 L C51
2010-08-07 06:03:50 S 02 49 47.02 +12 51 52.3 L C51
2010-08-07 09:14:21 S 02 49 56.98 +12 53 06.6 L C51
2010-08-07 12:24:52 S 02 50 06.89 +12 54 21.2 L C51
2010-08-07 14:00:02 S 02 50 11.82 +12 54 58.2 L C51
2010-08-07 15:35:23 S 02 50 16.79 +12 55 36.6 L C51
2010-08-07 17:10:33 S 02 50 21.69 +12 56 11.1 L C51
2010-08-07 18:45:54 S 02 50 26.68 +12 56 50.9 L C51
2010-08-07 20:21:04 S 02 50 31.53 +12 57 26.9 L C51