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
2012-08-08 23:17:12 C 20 25 45.60 +35 01 20.4 c A24
2012-08-08 23:18:14 C 20 25 45.53 +35 01 20.2 c A24
2012-08-12 07:20:53 c 20 21 12.360 +35 02 59.60 L F51
2012-08-12 07:34:46 c 20 21 11.500 +35 02 59.18 L F51
2012-08-14 21:40:44 C 20 17 43.84 +34 56 20.4 c A24
2012-08-14 21:41:46 C 20 17 43.83 +34 56 20.0 c A24
2012-08-14 21:42:49 C 20 17 43.74 +34 56 19.8 c A24
2012-08-14 21:43:51 C 20 17 43.68 +34 56 19.6 c A24
2012-08-14 22:50:04 C 20 17 39.75 +34 56 09.0 c A24
2012-08-14 22:51:07 C 20 17 39.64 +34 56 09.4 c A24
2012-08-18 22:55:38 C 20 12 37.66 +34 32 28.7 c A24
2012-08-18 22:56:40 C 20 12 37.56 +34 32 29.0 c A24
2012-08-18 22:57:43 C 20 12 37.58 +34 32 27.9 c A24
2012-08-18 22:58:45 C 20 12 37.50 +34 32 28.7 c A24
2012-08-20 23:05:26 C 20 10 17.91 +34 14 34.6 c A24
2012-08-20 23:06:30 C 20 10 17.84 +34 14 34.8 c A24
2012-08-20 23:07:34 C 20 10 17.80 +34 14 33.9 c A24
2012-08-20 23:08:38 C 20 10 17.71 +34 14 33.4 c A24
2012-08-24 07:37:15 c 20 06 47.762 +33 36 02.08 L F51
2012-08-24 07:51:14 c 20 06 47.099 +33 35 54.56 L F51
2012-09-09 21:12:21 C 19 58 45.88 +28 00 26.4 c A24
2012-09-09 21:13:23 C 19 58 45.89 +28 00 25.3 c A24
2012-09-09 22:17:40 C 19 58 45.76 +27 59 13.2 c A24
2012-09-09 22:18:42 C 19 58 45.70 +27 59 12.0 c A24
2012-09-15 20:21:59 C 20 00 24.76 +25 10 13.2 c A24
2012-09-15 20:23:02 C 20 00 24.80 +25 10 11.7 c A24
2012-09-15 22:23:57 C 20 00 26.76 +25 07 38.1 c A24
2012-09-16 19:27:14 C 20 00 55.54 +24 40 50.0 c A24
2012-09-16 20:34:02 C 20 00 56.81 +24 39 23.9 c A24
2012-09-16 20:35:04 C 20 00 56.87 +24 39 22.8 c A24
2012-10-01 19:46:59 C 20 17 32.95 +16 13 13.7 c A24
2012-10-01 19:48:01 C 20 17 33.05 +16 13 12.7 c A24
2012-10-05 18:57:29 C 20 24 31.05 +13 49 25.3 c A24
2012-10-05 18:58:32 C 20 24 31.10 +13 49 23.8 c A24
2012-10-07 20:16:03 C 20 28 30.69 +12 34 16.5 c A24
2012-10-07 20:17:06 C 20 28 30.76 +12 34 12.8 c A24
2012-10-09 19:06:55 C 20 32 33.66 +11 22 44.8 c A24
2012-10-09 19:07:58 C 20 32 33.75 +11 22 42.7 c A24
2012-10-27 01:52:45 C 21 17 42.70 +01 13 18.4 u H21
2012-10-27 01:57:21 C 21 17 43.25 +01 13 11.9 u H21
2012-10-27 02:01:58 C 21 17 43.80 +01 13 05.9 u H21
2012-10-27 02:06:34 C 21 17 44.37 +01 12 59.5 u H21
2012-10-27 02:10:50 C 21 17 44.87 +01 12 54.0 u H21
2012-10-28 18:22:52 C 21 22 54.41 +00 18 41.7 o A32
2012-10-28 18:27:23 C 21 22 54.99 +00 18 36.1 o A32
2012-10-28 18:30:35 C 21 22 55.39 +00 18 31.9 o A32
2012-10-29 01:39:23 C 21 23 50.91 +00 09 05.8 u H21
2012-10-29 01:43:43 C 21 23 51.45 +00 09 00.2 u H21
2012-10-29 01:47:59 C 21 23 51.99 +00 08 54.5 u H21
2012-10-29 01:52:00 C 21 23 52.49 +00 08 49.2 u H21