2608 Seneca (1978 DA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.5646614453 ± 1.23e-07
Semi-major axis (a)2.5303355129 AU ± 2.96e-08
Inclination (i)14.42806679° ± 2.18e-05
Long. of Asc. Node (Ω)166.42205632° ± 2.77e-05
Arg. of Perihelion (ω)38.71009764° ± 8.43e-05
Mean Anomaly (M)10.72157287° ± 1.42e-04
Mean Motion (n)0.2448753727°/day ± 4.30e-09
Perihelion dist (q)1.10155261 AU ± 3.13e-07
Aphelion dist (Q)3.95911842 AU ± 3.16e-07
Orbital Period4.02501188 yr ± 7.07e-08
Physical Parameters
H (abs. magnitude)17.48
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-05-31
RMS Residual0.567″
Uncertainty0
Orbit TypeAmor
MOID0.154052 AU
Observations Used83
Oppositions33
Arc Total1978-2022
First Observation Used1978-02-17
Last Observation Used2022-09-18
Observations (85)
Date Type RA Dec Mag Band Observatory
1994-05-12 19:19:32 C 22 37 20.07 +00 59 03.7 413
1994-08-15 16:55:49 C 22 42 06.60 -01 11 47.2 413
1994-08-15 17:08:57 C 22 42 06.05 -01 11 53.1 413
2006-08-19 09:35:59 C 23 22 55.01 -01 27 40.6 c 691
2006-08-19 10:02:42 C 23 22 54.04 -01 27 50.5 c 691
2008-11-20 05:09:14 C 04 31 21.54 +00 17 27.2 o H55
2008-11-20 05:30:47 C 04 31 20.53 +00 17 22.8 o H55
2010-08-19 06:20:11 C 23 33 30.11 -01 11 48.0 o H21
2010-08-19 06:44:13 C 23 33 29.23 -01 11 57.0 o H21
2010-08-19 07:09:09 C 23 33 28.33 -01 12 06.2 o H21
2016-10-28 08:16:10 C 04 59 19.14 +03 15 58.2 u H21
2016-10-28 08:22:18 C 04 59 19.02 +03 15 56.6 u H21
2016-10-28 08:30:12 C 04 59 18.85 +03 15 54.2 u H21
2017-01-20 06:21:15 C 03 48 28.663 +00 53 48.77 L F51
2017-01-20 06:39:39 C 03 48 28.445 +00 53 52.62 L F51
2017-01-20 06:56:30 C 03 48 28.249 +00 53 56.50 L F51
2017-01-20 07:13:26 C 03 48 28.054 +00 54 00.23 L F51
2018-07-20 12:45:14 C 23 51 07.861 +01 33 52.47 U F52
2018-07-20 12:59:35 C 23 51 07.718 +01 33 50.13 U F52
2018-07-20 13:14:11 C 23 51 07.603 +01 33 48.04 U F52
2018-08-04 07:47:35 C 23 45 41.68 +00 18 12.4 u H21
2018-08-04 08:00:26 C 23 45 41.44 +00 18 08.7 u H21
2018-08-04 08:14:44 C 23 45 41.08 +00 18 05.3 u H21
2021-01-05 07:45:22 C 03 58 29.124 -00 09 43.27 U F51
2021-01-05 08:02:04 C 03 58 28.618 -00 09 41.12 U F51
2021-01-05 08:18:45 C 03 58 28.125 -00 09 38.63 U F51
2022-08-26 10:21:17 C 23 31 14.416 -02 34 17.22 U F51
2022-08-26 10:38:16 C 23 31 13.774 -02 34 23.79 U F51
2022-08-26 10:55:13 C 23 31 13.121 -02 34 30.00 U F51
2022-09-02 12:29:21 C 23 24 44.450 -03 39 12.94 U F51
2022-09-02 12:58:21 C 23 24 43.288 -03 39 24.28 U F51
2022-09-02 13:21:46 C 23 24 42.349 -03 39 33.20 U F51
2022-09-18 08:48:56 C 23 10 01.226 -06 02 49.33 U F52
2022-09-18 09:03:38 C 23 10 00.654 -06 02 54.81 U F52
2022-09-18 09:18:15 C 23 10 00.094 -06 02 59.76 U F52