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
2020-05-26 10:54:44 C 20 20 00.40 +06 42 41.2 U I41
2020-05-29 10:07:18 C 20 22 11.50 +08 02 35.1 U I41
2020-05-29 10:10:03 C 20 22 11.61 +08 02 38.6 U I41
2020-05-29 11:08:24 C 20 22 13.12 +08 03 44.5 U I41
2020-06-16 08:42:05 C 20 28 37.35 +16 19 22.7 U I41
2020-06-16 09:17:15 C 20 28 37.24 +16 20 03.4 U I41
2020-06-16 11:05:49 C 20 28 36.85 +16 22 08.7 U I41
2020-06-16 11:30:28 C 20 28 36.75 +16 22 37.2 U I41
2020-06-22 07:41:37 C 20 27 47.95 +19 01 59.4 U I41
2020-06-22 08:53:26 C 20 27 46.89 +19 03 20.1 U I41
2020-06-22 08:54:47 C 20 27 46.86 +19 03 21.5 U I41
2020-06-22 11:05:40 C 20 27 44.87 +19 05 47.8 U I41
2020-06-22 11:07:03 C 20 27 44.84 +19 05 49.4 U I41
2020-07-07 09:59:00 C 20 18 22.94 +25 11 27.9 V T08
2020-07-07 10:33:05 C 20 18 21.45 +25 11 58.2 V T08
2020-07-07 10:36:53 C 20 18 21.26 +25 12 01.3 V T08
2020-07-07 10:44:30 C 20 18 20.93 +25 12 08.2 V T08
2020-07-10 00:09:29 C 20 15 43.97 +26 04 39.4 V C95
2020-07-10 00:16:21 C 20 15 43.59 +26 04 45.4 V C95
2020-07-10 00:48:58 C 20 15 41.87 +26 05 12.4 V 160
2020-07-10 00:53:29 C 20 15 41.75 +26 05 15.5 V 160
2020-07-10 00:57:59 C 20 15 41.47 +26 05 20.3 V 160
2020-07-14 05:20:17 C 20 10 51.36 +27 22 28.5 V U55
2020-07-14 05:27:45 C 20 10 50.95 +27 22 34.4 V U55
2020-07-14 05:35:13 C 20 10 50.60 +27 22 40.0 V U55
2020-07-17 11:09:20 C 20 06 39.13 +28 14 05.6 V T05
2020-07-17 11:14:25 C 20 06 38.80 +28 14 08.2 V T05
2020-07-17 11:22:21 C 20 06 38.32 +28 14 13.5 V T05
2020-07-17 11:37:36 C 20 06 37.37 +28 14 22.5 V T05
2020-07-19 06:56:01 C 20 04 09.58 +28 39 23.9 U I41
2020-07-19 07:59:46 C 20 04 05.59 +28 39 59.1 U I41
2020-07-19 08:09:38 C 20 04 04.97 +28 40 04.4 U I41
2020-07-19 08:37:54 C 20 04 03.19 +28 40 19.9 U I41
2020-07-20 08:03:45 C 20 02 40.84 +28 52 44.4 U I41
2020-07-20 09:10:02 C 20 02 36.61 +28 53 17.8 U I41
2020-07-20 09:30:03 C 20 02 35.32 +28 53 27.8 U I41
2020-07-26 22:35:31 C 19 52 56.72 +29 54 54.7 V 130
2020-07-26 22:41:14 C 19 52 56.33 +29 54 55.5 V 130
2020-08-19 01:22:04 C 19 22 50.10 +28 19 27.2 V W34
2020-08-19 01:38:34 C 19 22 49.40 +28 19 18.8 V W34
2020-08-19 01:44:18 C 19 22 49.15 +28 19 15.7 V W34
2020-08-28 08:27:51 C 19 17 24.29 +25 37 55.8 V T08
2020-08-28 08:42:00 C 19 17 24.04 +25 37 43.8 V T08
2020-08-28 09:12:38 C 19 17 23.51 +25 37 17.1 V T08
2020-09-03 07:21:31 C 19 16 51.35 +23 27 58.5 V T05
2020-09-03 07:26:13 C 19 16 51.33 +23 27 53.8 V T05
2020-09-03 07:34:12 C 19 16 51.36 +23 27 46.2 V T05
2020-09-03 07:49:51 C 19 16 51.26 +23 27 30.7 V T05
2020-09-04 04:54:39 C 19 16 57.87 +23 06 48.6 V W33
2020-09-04 05:02:48 C 19 16 57.90 +23 06 40.4 V W33