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
2013-09-10 06:39:42 C 01 09 02.65 -02 19 22.5 u G32
2013-09-11 06:21:10 C 01 07 38.45 -02 16 02.4 u G32
2013-09-11 06:27:25 C 01 07 38.07 -02 16 01.5 u G32
2013-09-11 06:33:41 C 01 07 37.65 -02 16 00.7 u G32
2013-09-11 06:39:57 C 01 07 37.25 -02 15 59.8 u G32
2013-09-12 06:32:54 C 01 06 11.40 -02 12 59.0 P U82
2013-09-12 07:11:28 C 01 06 08.94 -02 12 53.7 P U82
2013-09-12 07:48:06 C 01 06 06.56 -02 12 48.7 P U82
2013-09-12 08:18:35 C 01 06 03.78 -02 12 28.9 u G32
2013-09-12 08:24:50 C 01 06 03.38 -02 12 28.0 u G32
2013-09-12 08:31:06 C 01 06 02.95 -02 12 27.1 u G32
2013-09-15 07:28:36 C 01 01 38.54 -02 03 22.2 q 703
2013-09-15 07:35:44 C 01 01 38.07 -02 03 21.4 q 703
2013-09-15 07:42:55 C 01 01 37.57 -02 03 20.2 q 703
2013-09-15 07:50:05 C 01 01 37.10 -02 03 19.6 q 703
2013-09-16 06:47:33 C 01 00 08.41 -02 00 10.4 r Y00
2013-09-16 06:54:36 C 01 00 07.91 -02 00 09.7 r Y00
2013-09-16 07:00:23 C 01 00 07.55 -02 00 08.8 r Y00
2013-09-23 23:08:45 C 00 48 10.83 -01 38 10.0 c A24
2013-09-23 23:09:48 C 00 48 10.76 -01 38 10.0 c A24
2013-09-24 00:09:52 C 00 48 06.67 -01 38 02.9 c A24
2013-09-24 00:10:55 C 00 48 06.58 -01 38 02.5 c A24
2013-09-24 22:06:51 C 00 46 42.01 -01 35 26.2 c A24
2013-09-24 22:07:55 C 00 46 41.96 -01 35 26.3 c A24
2013-09-25 06:34:20 C 00 46 09.33 -01 34 24.2 q 703
2013-09-25 06:46:22 C 00 46 08.53 -01 34 22.9 q 703
2013-09-25 06:58:22 C 00 46 07.69 -01 34 21.6 q 703
2013-09-25 07:10:38 C 00 46 06.88 -01 34 20.5 q 703
2013-09-25 20:35:27 C 00 45 15.69 -01 32 46.9 q K48
2013-09-25 20:48:25 C 00 45 14.83 -01 32 45.6 q K48
2013-09-25 21:01:22 C 00 45 13.99 -01 32 44.2 q K48
2013-09-27 22:48:51 C 00 42 04.49 -01 26 47.4 v 461
2013-09-27 22:54:15 C 00 42 04.19 -01 26 47.1 v 461
2013-09-27 22:59:39 C 00 42 03.80 -01 26 46.7 v 461
2013-09-28 06:37:54 C 00 41 35.42 -01 25 47.9 q G96
2013-09-28 06:48:54 C 00 41 34.70 -01 25 46.6 q G96
2013-09-28 06:59:48 C 00 41 33.98 -01 25 45.2 q G96
2013-09-28 07:10:48 C 00 41 33.26 -01 25 43.9 q G96
2013-09-28 08:35:45 C 00 41 27.65 -01 25 33.6 q G96
2013-09-28 08:42:45 C 00 41 27.19 -01 25 32.7 q G96
2013-09-28 08:49:43 C 00 41 26.73 -01 25 31.9 q G96
2013-09-28 08:56:45 C 00 41 26.27 -01 25 31.1 q G96
2013-09-30 06:39:29 C 00 38 38.30 -01 19 56.9 q G96
2013-09-30 06:44:42 C 00 38 37.96 -01 19 56.2 q G96
2013-09-30 06:49:53 C 00 38 37.63 -01 19 55.5 q G96
2013-09-30 06:55:09 C 00 38 37.29 -01 19 54.8 q G96
2013-09-30 16:49:18 C 00 38 01.18 -01 18 41.7 q D29
2013-09-30 17:12:13 C 00 37 59.72 -01 18 38.6 q D29
2013-09-30 17:35:07 C 00 37 58.27 -01 18 35.8 q D29
2013-10-05 07:09:30 C 00 31 40.99 -01 04 32.4 q 703