878008 (2011 SJ16)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.7994800945 ± 5.86e-08
Semi-major axis (a)2.7970952556 AU ± 7.06e-09
Inclination (i)17.67197039° ± 1.25e-05
Long. of Asc. Node (Ω)186.21722103° ± 7.42e-06
Arg. of Perihelion (ω)293.78385311° ± 1.79e-05
Mean Anomaly (M)352.35480774° ± 3.62e-06
Mean Motion (n)0.2106936231°/day ± 7.97e-10
Perihelion dist (q)0.56087328 AU ± 1.64e-07
Aphelion dist (Q)5.03331723 AU ± 1.65e-07
Orbital Period4.67800719 yr ± 1.77e-08
Physical Parameters
H (abs. magnitude)19.21
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-01
RMS Residual0.276″
Uncertainty0
Orbit TypeApollo
MOID0.111422 AU
Observations Used236
Oppositions11
Arc Total2011-2025
First Observation Used2011-09-20
Last Observation Used2025-10-22
Observations (254)
Date Type RA Dec Mag Band Observatory
2011-10-15 07:27:27 C 03 18 09.16 -24 50 13.4 o H21
2011-10-16 00:58:37 C 03 25 13.56 -27 52 04.2 t 204
2011-10-16 01:03:08 C 03 25 15.44 -27 52 52.9 t 204
2011-10-16 01:07:37 C 03 25 17.31 -27 53 40.9 t 204
2011-10-18 03:50:28 C 03 52 11.52 -37 46 19.9 o 807
2011-10-18 03:55:22 C 03 52 14.62 -37 47 21.7 o 807
2011-10-18 04:00:14 C 03 52 17.73 -37 48 23.7 o 807
2011-10-19 07:56:09 C 04 12 49.66 -43 46 48.1 o 807
2011-10-19 07:56:57 C 04 12 50.35 -43 46 58.5 o 807
2011-10-19 07:57:57 C 04 12 51.16 -43 47 11.4 o 807
2011-10-19 07:58:58 C 04 12 51.97 -43 47 24.1 o 807
2011-10-19 08:00:00 C 04 12 52.81 -43 47 38.2 o 807
2011-10-19 08:00:31 C 04 12 53.26 -43 47 45.0 o 807
2011-10-20 07:53:40 C 04 35 19.14 -48 57 31.5 o 807
2011-10-20 07:58:35 C 04 35 24.18 -48 58 34.6 o 807
2011-10-20 08:03:29 C 04 35 29.21 -48 59 37.4 o 807
2011-10-20 08:08:50 C 04 35 34.70 -49 00 45.9 o 807
2012-05-22 10:10:41 C 17 46 48.04 +03 22 06.9 o 291
2012-05-22 10:27:09 C 17 46 46.92 +03 22 11.7 o 291
2012-05-22 10:43:39 C 17 46 45.87 +03 22 14.7 o 291
2020-09-16 06:31:01 C 21 44 18.760 +00 16 45.29 V T12
2020-09-17 06:12:47 C 21 43 14.350 +00 06 13.26 V T12
2021-06-04 03:39:14 C 09 25 44.30 +22 56 51.6 V I52
2021-06-04 03:42:17 C 09 25 45.36 +22 56 49.9 V I52
2021-06-04 03:45:21 C 09 25 46.39 +22 56 48.5 V I52
2025-08-18 07:45:49 C 00 31 14.69 +12 04 28.4 V H21
2025-08-18 08:02:21 C 00 31 14.65 +12 04 27.0 V H21
2025-09-02 09:43:39 C 00 26 04.857 +10 41 39.79 X F52
2025-09-02 09:59:10 C 00 26 04.401 +10 41 33.98 X F52
2025-09-02 10:14:41 C 00 26 03.937 +10 41 27.94 X F52
2025-09-21 14:15:50 B 00 03 23.591 +05 26 50.89 X N56
2025-09-21 14:26:07 B 00 03 22.851 +05 26 38.79 X N56
2025-09-21 14:36:23 B 00 03 22.131 +05 26 27.29 X N56
2025-09-22 17:30:02 B 00 01 20.233 +04 57 35.54 X N56
2025-09-22 17:40:28 B 00 01 19.283 +04 57 23.37 X N56
2025-09-22 17:50:55 B 00 01 18.472 +04 57 12.72 X N56
2025-09-23 06:37:27 C 00 00 18.968 +04 42 59.47 V G96
2025-09-23 06:47:02 C 00 00 18.184 +04 42 48.53 V G96
2025-09-23 06:54:27 C 00 00 17.590 +04 42 40.00 V G96
2025-09-23 07:01:51 C 00 00 16.978 +04 42 31.64 V G96
2025-09-25 09:55:46 C 23 56 08.545 +03 42 45.84 X F52
2025-09-25 10:13:35 C 23 56 06.978 +03 42 24.01 X F52
2025-09-25 10:31:25 C 23 56 05.404 +03 42 02.11 X F52
2025-09-28 12:21:17 C 23 49 33.562 +02 06 10.19 V P07
2025-09-28 13:43:46 C 23 49 25.618 +02 04 17.18 V P07
2025-09-28 15:08:51 C 23 49 17.402 +02 02 19.36 V P07
2025-09-28 18:42:39 C 23 48 56.690 +01 57 23.90 V P07
2025-09-28 18:42:55 C 23 48 56.635 +01 57 23.58 V P07
2025-09-30 00:09:31 C 23 46 08.916 +01 15 23.94 V R17
2025-09-30 00:29:06 C 23 46 06.965 +01 14 55.39 V R17