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
2020-11-28 01:19:53 C 22 40 17.73 -09 46 51.3 V 703
2020-11-28 01:42:45 C 22 40 21.27 -09 46 58.6 V 703
2020-12-04 02:57:30 C 23 03 08.75 -10 33 06.0 V 703
2020-12-04 03:05:08 C 23 03 09.97 -10 33 06.6 V 703
2020-12-04 03:20:23 C 23 03 12.44 -10 33 11.2 V 703
2020-12-05 05:03:16 C 23 07 15.564 -10 39 24.25 U F52
2020-12-05 05:38:08 C 23 07 20.910 -10 39 32.92 U F52
2020-12-05 05:55:37 C 23 07 23.589 -10 39 36.89 U F52
2020-12-07 06:05:44 C 23 14 58.81 -10 49 50.2 V T05
2020-12-07 06:09:44 C 23 14 59.43 -10 49 51.0 V T05
2020-12-07 06:21:41 C 23 15 01.27 -10 49 53.2 V T05
2020-12-07 06:36:23 C 23 15 03.52 -10 49 56.0 V T05
2020-12-08 01:58:42 C 23 18 07.01 -10 53 32.1 V G96
2020-12-08 02:06:46 C 23 18 08.26 -10 53 33.5 V G96
2020-12-08 02:14:50 C 23 18 09.50 -10 53 35.1 V G96
2020-12-08 02:22:55 C 23 18 10.74 -10 53 36.6 V G96
2020-12-11 06:07:41 C 23 30 06.30 -11 04 29.8 V T05
2020-12-11 06:13:39 C 23 30 07.21 -11 04 30.9 V T05
2020-12-11 06:22:15 C 23 30 08.54 -11 04 31.6 V T05
2020-12-11 06:43:26 C 23 30 11.83 -11 04 34.0 V T05
2020-12-15 01:49:27 C 23 44 31.48 -11 11 36.7 V 703
2020-12-15 02:13:56 C 23 44 35.24 -11 11 36.5 V 703
2020-12-19 02:00:20 C 23 59 35.02 -11 12 07.3 V 703
2020-12-19 02:08:30 C 23 59 36.29 -11 12 07.5 V 703
2020-12-19 02:16:41 C 23 59 37.68 -11 12 08.1 V 703
2020-12-19 02:24:52 C 23 59 38.90 -11 12 06.5 V 703
2020-12-25 06:15:04 C 00 22 36.32 -11 00 02.0 V T08
2020-12-25 06:22:22 C 00 22 37.43 -11 00 00.8 V T08
2020-12-25 06:27:01 C 00 22 38.14 -11 00 00.6 V T08
2020-12-25 06:43:03 C 00 22 40.55 -10 59 57.9 V T08
2021-01-12 06:43:11 C 01 27 53.60 -09 11 09.7 V T05
2021-01-12 06:47:48 C 01 27 54.25 -09 11 09.1 V T05
2021-01-12 06:57:02 C 01 27 55.49 -09 11 05.6 V T05
2021-01-12 07:11:33 C 01 27 57.64 -09 11 00.3 V T05
2021-01-13 11:49:59 C 01 32 11.04 -09 00 38.2 q D29
2021-01-13 12:10:21 C 01 32 13.98 -09 00 30.8 q D29
2021-01-13 12:30:42 C 01 32 16.88 -09 00 22.9 q D29
2021-01-16 03:31:56 C 01 41 31.61 -08 36 18.3 V 703
2021-01-16 03:55:46 C 01 41 34.91 -08 36 09.5 V 703
2021-01-16 05:44:07 C 01 41 50.87 -08 35 27.0 V T05
2021-01-16 05:49:30 C 01 41 51.63 -08 35 24.4 V T05
2021-01-16 06:00:03 C 01 41 53.17 -08 35 21.0 V T05
2021-01-16 06:15:27 C 01 41 55.35 -08 35 15.1 V T05
2022-11-20 12:39:13 C 11 51 17.262 -12 22 22.12 V G96
2022-11-20 12:44:35 C 11 51 17.766 -12 22 27.01 V G96
2022-11-20 12:49:58 C 11 51 18.360 -12 22 30.00 V G96
2022-11-20 12:55:21 C 11 51 18.896 -12 22 33.67 V G96
2023-03-17 13:27:51 C 15 47 56.652 -25 03 52.08 U F52
2023-03-17 13:44:15 C 15 47 57.109 -25 03 46.44 U F52
2023-03-17 14:00:40 C 15 47 57.567 -25 03 40.69 U F52