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
2004-11-03 03:46:46 C 22 19 58.07 -01 13 46.2 o 699
2004-11-03 04:07:56 C 22 20 00.83 -01 14 23.0 o 699
2004-11-13 04:28:58 C 22 54 24.88 -07 29 14.2 d 703
2004-11-13 04:40:05 C 22 54 26.51 -07 29 29.9 d 703
2004-11-13 04:51:10 C 22 54 28.06 -07 29 45.8 d 703
2004-11-13 05:02:20 C 22 54 29.70 -07 30 00.2 d 703
2004-11-18 01:45:40 C 23 12 02.97 -09 55 33.5 17.9 c 704
2004-11-18 02:03:45 C 23 12 05.51 -09 55 53.7 18.3 c 704
2004-11-18 02:40:12 C 23 12 10.89 -09 56 35.3 17.8 c 704
2004-11-18 02:58:21 C 23 12 13.48 -09 56 56.5 17.8 c 704
2004-12-06 01:35:04 C 00 17 56.06 -15 24 48.9 18.1 c 704
2004-12-06 01:52:52 C 00 17 58.64 -15 24 56.5 18.2 c 704
2004-12-06 02:10:45 C 00 18 01.23 -15 25 03.9 18.6 c 704
2004-12-06 02:47:36 C 00 18 06.62 -15 25 18.3 18.8 c 704
2004-12-11 01:31:32 C 00 35 54.30 -16 03 52.1 17.9 c 704
2004-12-11 01:50:02 C 00 35 56.94 -16 03 56.6 18.2 c 704
2004-12-11 02:09:04 C 00 35 59.67 -16 04 01.3 18.2 c 704
2004-12-11 02:28:03 C 00 36 02.41 -16 04 05.7 18.4 c 704
2004-12-11 02:46:37 C 00 36 05.01 -16 04 10.3 18.6 c 704
2004-12-12 06:38:58 C 00 40 13.34 -16 10 20.1 19.6 c 608
2004-12-12 06:54:06 C 00 40 15.50 -16 10 23.3 18.9 c 608
2004-12-12 07:09:40 C 00 40 17.71 -16 10 26.0 19.3 c 608
2007-04-15 10:37:37 C 16 38 13.99 -16 56 31.4 r 703
2007-04-15 10:48:33 C 16 38 13.88 -16 56 23.7 r 703
2007-04-15 10:59:37 C 16 38 13.74 -16 56 14.2 r 703
2007-04-15 11:10:50 C 16 38 13.59 -16 56 05.0 r 703
2007-04-20 08:49:26 C 16 36 34.91 -15 17 37.4 19.0 c 704
2007-04-20 09:02:32 C 16 36 34.65 -15 17 25.6 19.0 c 704
2007-04-20 09:15:38 C 16 36 34.32 -15 17 14.1 19.2 c 704
2007-04-20 09:28:47 C 16 36 34.07 -15 17 03.7 18.8 c 704
2007-05-07 09:31:32 C 16 20 59.06 -08 35 51.4 r 703
2007-05-07 09:44:21 C 16 20 58.27 -08 35 38.8 r 703
2007-05-07 09:57:13 C 16 20 57.55 -08 35 25.5 r 703
2007-05-07 10:10:01 C 16 20 56.83 -08 35 11.8 r 703
2007-05-11 10:37:22 C 16 15 23.23 -06 52 59.0 o 691
2007-05-11 11:02:43 C 16 15 21.63 -06 52 32.1 o 691
2007-05-11 11:28:04 C 16 15 20.03 -06 52 05.1 o 691
2007-05-13 14:42:42 C 16 12 11.55 -05 57 58.0 r D29
2007-05-13 15:19:53 C 16 12 09.14 -05 57 19.0 r D29
2007-05-13 15:54:22 C 16 12 06.87 -05 56 43.3 r D29
2007-05-13 16:29:19 C 16 12 04.48 -05 56 06.0 r D29
2007-05-17 08:53:28 C 16 06 22.57 -04 24 13.2 r 703
2007-05-17 09:02:03 C 16 06 21.88 -04 24 04.6 r 703
2007-05-17 09:10:39 C 16 06 21.38 -04 23 55.6 r 703
2007-05-17 09:19:09 C 16 06 20.84 -04 23 47.2 r 703
2007-05-24 07:54:08 C 15 55 15.49 -01 41 01.0 r 703
2007-05-24 08:02:44 C 15 55 14.84 -01 40 52.0 r 703
2007-05-24 08:11:27 C 15 55 14.19 -01 40 44.8 r 703
2007-05-24 08:20:05 C 15 55 13.65 -01 40 36.6 r 703
2007-06-12 07:14:07 C 15 29 05.20 +03 37 15.3 r 703