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
2015-05-17 00:04:07 C 15 36 52.24 -04 48 04.4 19.0 u J43
2015-05-17 00:22:42 C 15 36 50.92 -04 47 45.7 19.1 u J43
2015-05-17 00:41:17 C 15 36 49.61 -04 47 26.3 19.0 u J43
2015-05-17 00:59:49 C 15 36 48.34 -04 47 07.8 18.9 u J43
2015-05-18 00:04:36 C 15 35 17.18 -04 23 55.1 18.9 u J43
2015-05-18 00:23:08 C 15 35 15.89 -04 23 36.5 18.7 u J43
2015-05-18 00:41:47 C 15 35 14.60 -04 23 18.4 18.9 u J43
2015-05-18 01:00:21 C 15 35 13.29 -04 22 59.6 18.4 u J43
2015-05-18 15:50:20 C 15 34 14.89 -04 08 15.3 q D29
2015-05-18 16:10:39 C 15 34 13.47 -04 07 55.2 q D29
2015-05-18 16:30:58 C 15 34 12.05 -04 07 34.4 q D29
2015-05-19 06:50:32 C 15 33 15.93 -03 53 29.5 q 703
2015-05-19 06:57:48 C 15 33 15.39 -03 53 22.5 q 703
2015-05-19 07:05:04 C 15 33 14.91 -03 53 15.4 q 703
2015-05-19 07:12:20 C 15 33 14.38 -03 53 08.1 q 703
2015-05-21 09:10:40 C 15 29 59.731 -03 05 06.27 L F51
2015-05-21 09:29:04 C 15 29 58.471 -03 04 48.92 L F51
2015-05-21 09:47:32 C 15 29 57.212 -03 04 31.58 L F51
2015-05-22 10:20:45 C 15 28 22.714 -02 41 39.92 L F51
2015-05-22 10:31:10 C 15 28 22.006 -02 41 30.31 L F51
2015-05-22 10:39:08 C 15 28 21.470 -02 41 22.93 L F51
2015-05-22 10:49:34 C 15 28 20.767 -02 41 13.40 L F51
2015-05-22 10:57:28 C 15 28 20.235 -02 41 06.05 L F51
2015-05-22 11:07:54 C 15 28 19.529 -02 40 56.47 L F51
2015-05-22 11:15:48 C 15 28 18.999 -02 40 49.16 L F51
2015-05-24 06:49:32 C 15 25 34.84 -02 01 35.6 R G45
2015-05-24 06:56:02 C 15 25 34.45 -02 01 30.0 R G45
2015-05-24 07:03:25 C 15 25 33.93 -02 01 23.5 R G45
2015-05-24 07:10:15 C 15 25 33.56 -02 01 17.8 R G45
2015-05-24 07:16:59 C 15 25 33.05 -02 01 11.7 R G45
2015-05-24 07:17:11 C 15 25 33.04 -02 01 11.2 R G45
2015-05-24 07:23:32 C 15 25 32.61 -02 01 05.7 R G45
2015-05-24 07:23:44 C 15 25 32.60 -02 01 05.5 R G45
2015-05-26 06:20:49 C 15 22 40.75 -01 20 43.0 q 703
2015-05-26 06:33:16 C 15 22 39.98 -01 20 32.6 q 703
2015-05-26 06:45:44 C 15 22 39.23 -01 20 22.1 q 703
2015-05-26 06:58:11 C 15 22 38.46 -01 20 12.3 q 703
2015-06-05 08:56:00 C 15 09 50.539 +01 31 51.33 L F51
2015-06-05 09:14:46 C 15 09 49.630 +01 32 02.22 L F51
2015-06-05 09:33:27 C 15 09 48.724 +01 32 13.04 L F51
2015-06-05 09:52:07 C 15 09 47.827 +01 32 23.79 L F51
2015-06-06 10:17:02 C 15 08 43.617 +01 46 11.75 L F51
2015-06-06 10:35:08 C 15 08 42.783 +01 46 21.72 L F51
2015-06-06 11:11:19 C 15 08 41.125 +01 46 41.58 L F51
2015-06-07 10:59:06 C 15 07 41.399 +01 59 29.35 L F52
2015-06-07 11:17:19 C 15 07 40.597 +01 59 38.87 L F52
2015-06-07 11:35:36 C 15 07 39.801 +01 59 48.46 L F52
2015-06-07 11:53:51 C 15 07 39.020 +01 59 57.96 L F52
2015-06-11 05:09:36 C 15 04 19.71 +02 42 18.3 R G45
2015-06-11 05:12:27 C 15 04 19.70 +02 42 19.2 q 703