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
2015-01-20 08:20:22 C 07 02 46.404 +32 31 04.72 L F51
2015-01-20 08:37:34 C 07 02 45.510 +32 31 05.26 L F51
2015-01-22 06:54:19 C 07 00 26.709 +32 32 07.18 L F51
2015-01-22 07:11:28 C 07 00 25.846 +32 32 07.53 L F51
2015-01-22 07:28:34 C 07 00 24.996 +32 32 07.95 L F51
2015-01-24 06:48:42 C 06 58 06.59 +32 32 39.5 q G96
2015-01-24 06:55:54 C 06 58 06.19 +32 32 39.7 q G96
2015-01-24 07:03:05 C 06 58 05.78 +32 32 39.4 q G96
2015-01-24 07:10:16 C 06 58 05.43 +32 32 39.2 q G96
2016-01-15 14:29:30 C 13 21 34.324 -04 08 02.52 L F51
2016-01-15 15:06:52 C 13 21 36.243 -04 08 14.78 L F51
2016-01-15 15:25:32 C 13 21 37.209 -04 08 21.03 L F51
2016-02-04 15:03:17 C 13 45 03.357 -06 38 51.14 L F51
2016-02-04 15:17:25 C 13 45 03.954 -06 38 55.34 L F51
2016-02-04 15:31:31 C 13 45 04.550 -06 38 59.48 L F51
2016-02-04 15:45:37 C 13 45 05.150 -06 39 03.49 L F51
2016-02-10 09:42:05 C 13 50 54.79 -07 18 25.4 R G45
2016-02-10 09:43:03 C 13 50 54.80 -07 18 26.4 R G45
2016-02-10 09:49:33 C 13 50 55.05 -07 18 28.7 R G45
2016-02-10 09:55:22 C 13 50 55.29 -07 18 30.0 R G45
2016-02-10 09:55:28 C 13 50 55.30 -07 18 30.7 R G45
2016-02-10 10:01:55 C 13 50 55.56 -07 18 31.1 R G45
2016-02-10 10:08:31 C 13 50 55.79 -07 18 33.4 R G45
2016-02-10 10:08:36 C 13 50 55.79 -07 18 33.4 R G45
2016-02-10 10:15:07 C 13 50 56.05 -07 18 35.5 R G45
2016-02-12 11:49:43 C 13 52 53.70 -07 32 15.8 q 703
2016-02-12 11:56:13 C 13 52 53.93 -07 32 19.1 q 703
2016-02-12 12:09:12 C 13 52 54.32 -07 32 22.3 q 703
2016-02-12 12:45:27 C 13 52 55.78 -07 32 31.1 q 703
2016-02-12 12:57:53 C 13 52 56.25 -07 32 34.4 q 703
2016-02-13 09:45:49 C 13 53 44.55 -07 38 16.2 R G45
2016-02-13 09:52:19 C 13 53 44.78 -07 38 18.1 R G45
2016-02-13 10:05:39 C 13 53 45.26 -07 38 21.8 R G45
2016-02-13 10:12:33 C 13 53 45.53 -07 38 23.9 R G45
2016-02-15 13:16:01 C 13 55 40.014 -07 52 07.78 L F51
2016-02-15 13:32:50 C 13 55 40.598 -07 52 12.19 L F51
2016-02-15 13:49:41 C 13 55 41.188 -07 52 16.79 L F51
2016-02-15 14:06:32 C 13 55 41.772 -07 52 21.29 L F51
2016-03-06 12:21:48 C 14 08 43.100 -09 49 58.97 L F51
2016-03-06 12:38:29 C 14 08 43.327 -09 50 02.73 L F51
2016-03-06 12:55:13 C 14 08 43.558 -09 50 06.55 L F51
2016-03-06 13:11:59 C 14 08 43.788 -09 50 10.35 L F51
2016-03-10 10:08:55 C 14 09 58.87 -10 10 51.4 q 703
2016-03-10 10:16:56 C 14 09 58.94 -10 10 54.3 q 703
2016-03-10 10:24:55 C 14 09 59.00 -10 10 56.9 q 703
2016-03-10 10:32:56 C 14 09 59.11 -10 10 58.4 q 703
2016-03-13 08:25:37 C 14 10 35.62 -10 26 07.0 R G45
2016-03-13 08:32:19 C 14 10 35.64 -10 26 08.5 R G45
2016-03-13 08:39:01 C 14 10 35.68 -10 26 10.1 R G45
2016-03-13 08:45:54 C 14 10 35.71 -10 26 11.5 R G45