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
2016-05-30 08:51:50 C 12 56 01.41 -18 05 38.0 L T05
2016-06-01 07:27:21 C 12 55 17.24 -18 26 21.0 L T05
2016-06-01 07:41:15 C 12 55 16.98 -18 26 27.3 L T05
2016-06-01 07:45:38 C 12 55 16.84 -18 26 29.8 L T05
2016-06-01 07:58:55 C 12 55 16.62 -18 26 35.5 L T05
2016-06-01 08:03:19 C 12 55 16.54 -18 26 37.6 L T05
2016-06-01 08:16:35 C 12 55 16.28 -18 26 44.2 L T05
2016-06-01 08:20:57 C 12 55 16.20 -18 26 45.8 L T05
2016-06-01 08:35:00 C 12 55 15.97 -18 26 51.6 L T05
2016-06-05 06:49:45 C 12 54 33.376 -19 11 48.24 L F51
2016-06-05 07:04:45 C 12 54 33.257 -19 11 55.62 L F51
2016-06-05 07:17:59 C 12 54 33.14 -19 12 02.4 L T05
2016-06-05 07:19:39 C 12 54 33.142 -19 12 03.00 L F51
2016-06-05 07:52:58 C 12 54 32.84 -19 12 21.3 L T05
2016-06-05 08:10:31 C 12 54 32.75 -19 12 28.2 L T05
2016-06-05 08:28:07 C 12 54 32.67 -19 12 36.4 L T05
2016-06-07 19:54:27 C 12 54 39.21 -19 42 48.7 o K95
2016-06-07 19:59:21 C 12 54 39.22 -19 42 50.6 o K95
2016-06-07 20:04:30 C 12 54 39.27 -19 42 54.8 o K95
2016-06-07 20:23:29 C 12 54 39.27 -19 43 04.3 o K95
2016-06-07 20:27:16 C 12 54 39.26 -19 43 06.5 o K95
2016-06-07 20:30:50 C 12 54 39.30 -19 43 07.8 o K95
2016-06-16 03:48:01 C 12 58 10.96 -21 38 10.5 u 926
2016-06-16 03:57:48 C 12 58 11.22 -21 38 16.6 u 926
2016-06-16 04:11:54 C 12 58 11.57 -21 38 24.4 u 926
2016-06-21 18:33:27 C 13 03 18.96 -23 05 57.8 o K95
2016-06-21 18:43:52 C 13 03 19.39 -23 06 04.7 o K95
2016-06-21 18:54:13 C 13 03 19.78 -23 06 12.0 o K95
2016-06-23 06:35:33 C 13 05 03.687 -23 31 08.63 L F51
2016-06-23 06:51:25 C 13 05 04.401 -23 31 19.60 L F51
2016-06-23 07:23:05 C 13 05 05.837 -23 31 41.23 L F51
2016-06-28 06:23:34 C 13 12 01.23 -24 57 44.4 L T05
2016-06-28 06:52:59 C 13 12 02.96 -24 58 06.3 L T05
2016-06-28 07:07:18 C 13 12 03.87 -24 58 16.8 L T05
2016-06-28 07:21:24 C 13 12 04.74 -24 58 27.0 L T05
2016-07-04 03:21:25 C 13 22 30.98 -26 46 19.7 R G45
2016-07-04 03:28:19 C 13 22 31.53 -26 46 25.1 R G45
2016-07-04 03:35:06 C 13 22 32.10 -26 46 30.0 R G45
2016-07-04 03:43:47 C 13 22 32.76 -26 46 37.0 R G45
2016-07-07 14:13:15 S 13 29 53.714 -27 52 36.52 L C51
2016-07-07 17:21:56 S 13 30 11.558 -27 55 10.34 L C51
2016-07-07 20:30:37 S 13 30 29.542 -27 57 43.88 L C51
2016-07-07 23:39:18 S 13 30 47.580 -28 00 18.58 L C51
2016-07-08 02:47:59 S 13 31 05.62 -28 02 51.8 L C51
2016-07-08 05:56:40 S 13 31 23.82 -28 05 26.2 L C51
2016-07-08 09:05:21 S 13 31 42.06 -28 08 00.5 L C51
2016-07-08 12:14:03 S 13 32 00.43 -28 10 34.9 L C51
2016-07-08 15:22:44 S 13 32 18.91 -28 13 09.3 L C51
2016-07-08 16:57:09 S 13 32 28.11 -28 14 27.4 L C51
2016-07-08 18:31:24 S 13 32 37.361 -28 15 44.78 L C51