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
2004-08-19 20:46:52 C 21 12 00.67 +40 11 31.8 r A30
2004-08-19 20:51:20 C 21 12 00.31 +40 11 32.1 r A30
2004-09-06 04:13:08 C 20 55 39.19 +37 43 36.2 17.8 c 704
2004-09-06 04:28:59 C 20 55 38.65 +37 43 24.6 18.0 c 704
2004-09-06 04:44:46 C 20 55 38.15 +37 43 12.1 18.1 c 704
2004-09-06 05:00:38 C 20 55 37.65 +37 42 59.9 18.0 c 704
2004-09-06 05:16:39 C 20 55 37.10 +37 42 48.0 17.8 c 704
2004-09-13 19:24:16 C 20 52 39.17 +34 51 26.6 c 046
2004-09-13 19:26:18 C 20 52 39.17 +34 51 24.7 c 046
2004-09-13 19:28:16 C 20 52 39.15 +34 51 22.0 c 046
2004-09-13 19:29:15 C 20 52 39.11 +34 51 21.0 c 046
2004-09-18 19:29:13 C 20 52 51.92 +32 23 56.9 r A30
2004-09-18 19:35:22 C 20 52 51.92 +32 23 49.1 r A30
2004-09-18 19:39:57 C 20 52 51.95 +32 23 41.4 r 240
2004-09-18 19:41:28 C 20 52 51.89 +32 23 40.9 r A30
2004-09-18 19:45:04 C 20 52 51.97 +32 23 34.7 r 240
2004-09-18 19:47:38 C 20 52 51.92 +32 23 33.2 r A30
2004-09-18 19:47:40 C 20 52 51.98 +32 23 31.2 r 240
2004-09-18 19:50:13 C 20 52 51.99 +32 23 27.7 r 240
2004-09-18 19:52:47 C 20 52 52.00 +32 23 24.1 r 240
2004-09-18 19:55:23 C 20 52 52.01 +32 23 21.0 r 240
2004-09-18 19:57:57 C 20 52 52.02 +32 23 17.4 r 240
2004-09-18 19:59:14 C 20 52 52.02 +32 23 15.7 r 240
2004-09-24 21:13:54 C 20 55 43.49 +28 50 59.9 o 084
2004-09-27 05:43:14 C 20 57 37.50 +27 19 37.3 c H41
2004-09-27 05:45:37 C 20 57 37.54 +27 19 32.9 c H41
2004-09-27 05:47:23 C 20 57 37.59 +27 19 30.1 c H41
2004-09-27 05:49:11 C 20 57 37.62 +27 19 26.6 c H41
2004-09-27 05:51:02 C 20 57 37.72 +27 19 23.4 c H41
2004-09-27 05:52:49 C 20 57 37.77 +27 19 20.9 c H41
2004-10-01 19:27:57 C 21 02 36.34 +24 08 41.3 o 084
2004-10-07 19:57:44 C 21 11 37.90 +19 35 28.5 o 084
2004-10-10 18:15:28 C 21 17 01.68 +17 15 41.1 o 084
2004-10-11 21:07:23 C 21 19 14.61 +16 21 24.1 o 084
2004-10-15 17:45:34 C 21 27 37.66 +13 12 01.2 o 084
2004-10-16 02:11:05 C 21 28 26.76 +12 54 53.9 19.1 c 704
2004-10-16 02:26:46 C 21 28 28.19 +12 54 21.0 19.7 c 704
2004-10-16 02:58:15 C 21 28 30.96 +12 53 16.0 19.7 c 704
2004-10-16 03:13:58 C 21 28 32.43 +12 52 44.4 20.0 c 704
2004-10-17 01:54:14 C 21 30 46.92 +12 06 05.0 16.7 c 704
2004-10-17 02:10:12 C 21 30 48.40 +12 05 31.9 17.4 c 704
2004-10-17 02:26:09 C 21 30 49.88 +12 04 59.0 17.2 c 704
2004-10-17 02:42:06 C 21 30 51.34 +12 04 26.1 17.2 c 704
2004-10-17 02:58:04 C 21 30 52.81 +12 03 53.5 17.3 c 704
2004-10-23 02:54:48 C 21 46 24.40 +07 09 42.8 c 670
2004-10-23 03:45:06 C 21 46 29.86 +07 08 00.5 c 670
2004-10-23 04:45:10 C 21 46 36.41 +07 05 59.8 c 670
2004-10-25 16:44:22 C 21 53 43.10 +05 06 07.8 o 084
2004-11-03 03:04:31 C 22 19 52.61 -01 12 31.8 o 699
2004-11-03 03:25:39 C 22 19 55.34 -01 13 09.1 o 699