4947 Ninkasi (1988 TJ1)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.1684400316 ± 2.00e+00
Semi-major axis (a)1.3701127590 AU ± 3.00e+00
Inclination (i)15.65180501° ± 4.00e+00
Long. of Asc. Node (Ω)215.42213933° ± 5.00e+00
Arg. of Perihelion (ω)192.96274282° ± 6.00e+00
Mean Anomaly (M)30.35999586° ± 8.59e-06
Mean Motion (n)0.6145791326°/day ± 2.02e+00
Perihelion dist (q)1.13933092 AU ± 3.71e+00
Aphelion dist (Q)1.60089460 AU ± 4.45e+00
Orbital Period1.60374186 yr ± 5.27e+00
NGA Modelr2
A2-1.97295877e-06 AU/d²
Physical Parameters
H (abs. magnitude)18.07
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.365″
Uncertainty0
Orbit TypeAmor
MOID0.148389 AU
Observations Used954
Oppositions18
Arc Total1978-2026
First Observation Used1978-02-17
Last Observation Used2026-03-26
Observations (999)
Date Type RA Dec Mag Band Observatory
2007-06-12 07:21:50 C 15 29 04.84 +03 37 19.6 r 703
2007-06-12 07:29:33 C 15 29 04.48 +03 37 22.8 r 703
2007-06-12 08:08:09 C 15 29 02.72 +03 37 41.5 r 703
2007-06-12 08:16:43 C 15 29 02.32 +03 37 44.3 r 703
2007-06-12 08:25:18 C 15 29 01.93 +03 37 48.0 r 703
2007-06-12 08:33:52 C 15 29 01.46 +03 37 52.3 r 703
2007-06-14 05:12:24 C 15 27 10.37 +03 56 55.7 o 699
2007-06-14 05:50:27 C 15 27 08.71 +03 57 09.3 o 699
2007-06-14 06:28:37 C 15 27 07.05 +03 57 23.8 o 699
2007-06-14 07:07:31 C 15 27 05.38 +03 57 39.7 o 699
2009-09-29 11:24:35 C 07 37 32.19 +14 20 28.3 r G96
2009-09-29 11:33:36 C 07 37 33.45 +14 20 18.8 r G96
2009-09-29 11:42:40 C 07 37 34.68 +14 20 08.9 r G96
2010-03-11 15:17:36 C 11 00 01.80 -27 35 15.2 r E12
2010-03-11 15:29:45 C 11 00 01.09 -27 35 02.0 r E12
2010-03-13 09:55:20 C 10 57 49.646 -26 46 11.25 L F51
2010-03-13 10:07:24 C 10 57 48.971 -26 45 57.06 L F51
2010-04-05 04:34:18 C 10 40 36.66 -14 35 31.3 r 703
2010-04-05 04:43:22 C 10 40 36.58 -14 35 20.0 r 703
2010-04-05 04:52:31 C 10 40 36.44 -14 35 07.1 r 703
2010-04-05 05:01:38 C 10 40 36.33 -14 34 55.3 r 703
2010-04-14 04:57:13 C 10 40 50.37 -10 06 56.4 r 703
2010-04-14 05:07:13 C 10 40 50.41 -10 06 45.3 r 703
2010-04-14 05:17:11 C 10 40 50.41 -10 06 33.4 r 703
2010-04-14 05:27:11 C 10 40 50.52 -10 06 21.9 r 703
2010-05-08 04:29:14 C 10 58 11.53 -01 56 16.6 r 703
2010-05-08 04:39:57 C 10 58 12.07 -01 56 09.1 r 703
2010-05-08 04:50:45 C 10 58 12.54 -01 56 03.2 r 703
2010-05-08 05:01:33 C 10 58 13.08 -01 55 57.9 r 703
2012-05-20 13:45:56 C 20 34 17.104 +04 55 20.21 L F51
2012-05-20 14:03:05 C 20 34 17.941 +04 55 38.71 L F51
2012-06-26 08:19:08 C 21 00 30.25 +21 49 43.4 19.5 c 704
2012-06-26 08:34:50 C 21 00 30.28 +21 50 02.9 19.7 c 704
2012-06-26 08:50:15 C 21 00 30.30 +21 50 20.6 19.5 c 704
2012-06-26 09:05:38 C 21 00 30.27 +21 50 36.2 19.1 c 704
2012-07-17 00:14:04 C 20 53 00.23 +30 22 43.5 c A24
2012-07-17 00:16:09 C 20 53 00.11 +30 22 45.9 c A24
2012-07-17 00:37:39 C 20 52 59.32 +30 23 05.1 c A24
2012-07-18 00:15:38 C 20 52 09.59 +30 43 02.0 t 130
2012-07-18 00:17:47 C 20 52 09.56 +30 43 04.4 t 130
2012-07-18 00:19:31 C 20 52 09.45 +30 43 06.1 c A24
2012-07-18 00:19:57 C 20 52 09.47 +30 43 05.5 t 130
2012-07-18 00:20:33 C 20 52 09.43 +30 43 06.4 c A24
2012-07-18 00:21:36 C 20 52 09.39 +30 43 07.7 c A24
2012-07-18 00:22:38 C 20 52 09.34 +30 43 08.3 c A24
2012-07-18 00:22:49 C 20 52 09.34 +30 43 08.6 t 130
2012-07-18 01:28:37 C 20 52 06.73 +30 44 03.4 c A24
2012-07-18 01:29:39 C 20 52 06.69 +30 44 04.0 c A24
2012-07-18 01:30:42 C 20 52 06.64 +30 44 05.0 c A24
2012-07-18 01:31:44 C 20 52 06.61 +30 44 05.7 c A24