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
2012-01-28 11:34:52 C 07 33 45.720 +31 40 51.74 L F51
2012-01-28 11:54:58 C 07 33 44.694 +31 40 52.89 L F51
2013-01-17 14:50:30 C 14 33 43.659 -13 09 29.22 L F51
2013-01-17 14:58:19 C 14 33 44.359 -13 09 33.34 L F51
2013-01-17 15:06:03 C 14 33 45.048 -13 09 37.40 L F51
2013-01-17 15:13:50 C 14 33 45.730 -13 09 41.43 L F51
2013-02-05 12:19:43 C 15 16 35.25 -17 07 20.4 r G96
2013-02-05 12:28:15 C 15 16 36.08 -17 07 24.9 r G96
2013-02-05 12:36:57 C 15 16 36.94 -17 07 29.1 r G96
2013-02-05 12:45:36 C 15 16 37.77 -17 07 34.1 r G96
2013-04-26 17:14:21 C 19 53 20.44 -30 23 46.9 q E12
2013-07-18 04:02:40 C 01 06 20.72 -09 57 19.0 r Y00
2013-07-18 04:06:55 C 01 06 20.99 -09 57 16.8 r Y00
2013-07-18 04:12:04 C 01 06 21.32 -09 57 12.8 r Y00
2013-07-23 07:02:28 C 01 14 04.25 -08 44 08.1 r Y00
2013-07-23 07:10:39 C 01 14 04.67 -08 44 03.3 r Y00
2013-07-23 07:18:49 C 01 14 05.11 -08 43 59.5 r Y00
2013-08-18 05:25:03 C 01 29 13.75 -04 16 09.6 o 844
2013-08-18 05:36:17 C 01 29 13.71 -04 16 06.6 o 844
2013-08-18 05:41:54 C 01 29 13.50 -04 16 04.6 o 844
2013-08-18 05:50:15 C 01 29 13.38 -04 16 01.0 o 844
2013-08-26 08:35:41 C 01 25 23.92 -03 24 44.0 u H21
2013-08-26 08:40:51 C 01 25 23.75 -03 24 42.9 u H21
2013-08-26 08:46:12 C 01 25 23.57 -03 24 41.5 u H21
2013-08-26 08:51:32 C 01 25 23.39 -03 24 40.3 u H21
2013-08-26 08:56:52 C 01 25 23.21 -03 24 39.4 u H21
2013-08-26 09:00:26 C 01 25 23.09 -03 24 38.5 u H21
2013-09-04 07:45:59 C 01 16 48.87 -02 41 51.5 P U82
2013-09-04 08:08:04 C 01 16 47.70 -02 41 47.7 P U82
2013-09-04 09:03:24 C 01 16 44.76 -02 41 38.4 P U82
2013-09-05 07:43:45 C 01 15 36.63 -02 37 50.7 P U82
2013-09-05 08:34:26 C 01 15 33.86 -02 37 42.4 P U82
2013-09-05 08:48:02 C 01 15 33.03 -02 37 39.7 q 703
2013-09-05 08:55:58 C 01 15 32.57 -02 37 38.3 q 703
2013-09-05 09:04:02 C 01 15 32.13 -02 37 37.0 q 703
2013-09-05 09:12:10 C 01 15 31.68 -02 37 35.6 q 703
2013-09-05 09:23:36 C 01 15 31.13 -02 37 34.2 P U82
2013-09-05 10:14:13 C 01 15 28.34 -02 37 25.9 P U82
2013-09-06 01:31:06 C 01 14 40.82 -02 34 59.3 t 130
2013-09-06 01:32:32 C 01 14 40.73 -02 34 59.5 t 130
2013-09-06 01:33:58 C 01 14 40.66 -02 34 59.2 t 130
2013-09-06 01:36:08 C 01 14 40.53 -02 34 58.9 t 130
2013-09-06 07:46:56 C 01 14 21.56 -02 33 56.6 P U82
2013-09-06 08:38:24 C 01 14 18.64 -02 33 48.4 P U82
2013-09-06 09:27:23 C 01 14 15.86 -02 33 40.7 P U82
2013-09-06 10:19:24 C 01 14 12.87 -02 33 32.3 P U82
2013-09-10 06:14:38 C 01 09 04.23 -02 19 26.0 u G32
2013-09-10 06:20:55 C 01 09 03.81 -02 19 25.1 u G32
2013-09-10 06:27:11 C 01 09 03.44 -02 19 24.3 u G32
2013-09-10 06:33:27 C 01 09 03.04 -02 19 23.4 u G32