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
2020-09-04 05:10:00 C 19 16 57.87 +23 06 32.3 V W33
2020-09-09 06:58:42 C 19 18 39.36 +21 01 34.2 V T08
2020-09-09 07:03:20 C 19 18 39.43 +21 01 29.3 V T08
2020-09-09 07:10:51 C 19 18 39.55 +21 01 21.2 V T08
2020-09-09 07:26:43 C 19 18 39.78 +21 01 04.1 V T08
2020-09-13 07:48:49 C 19 21 11.56 +19 15 50.5 V T08
2020-09-13 07:53:28 C 19 21 11.69 +19 15 44.8 V T08
2020-09-13 08:08:05 C 19 21 12.06 +19 15 28.7 V T08
2020-09-13 08:17:23 C 19 21 12.31 +19 15 18.0 V T08
2020-09-15 04:07:19 C 19 22 42.90 +18 25 53.0 U I41
2020-09-15 04:58:50 C 19 22 44.59 +18 24 53.7 U I41
2020-09-15 06:00:43 C 19 22 46.59 +18 23 43.0 U I41
2020-09-15 06:44:10 C 19 22 48.02 +18 22 53.3 U I41
2020-09-15 08:22:40 C 19 22 51.81 +18 21 07.0 V T05
2020-09-15 08:28:39 C 19 22 52.00 +18 20 59.7 V T05
2020-09-15 08:36:34 C 19 22 52.25 +18 20 50.6 V T05
2020-09-15 08:53:48 C 19 22 52.84 +18 20 30.2 V T05
2020-09-15 19:01:21 C 19 23 16.68 +18 08 52.1 V 130
2020-09-15 19:07:26 C 19 23 16.87 +18 08 45.2 V 130
2020-09-19 03:06:40 C 19 26 42.72 +16 36 27.5 U I41
2020-09-19 03:37:40 C 19 26 44.03 +16 35 51.4 U I41
2020-09-19 05:39:22 C 19 26 49.24 +16 33 28.4 U I41
2020-09-19 05:40:43 C 19 26 49.29 +16 33 27.0 U I41
2020-09-22 06:21:05 C 19 30 34.40 +15 08 03.7 V T05
2020-09-22 06:25:47 C 19 30 34.66 +15 07 58.1 V T05
2020-09-22 06:34:24 C 19 30 35.08 +15 07 47.8 V T05
2020-09-22 06:49:02 C 19 30 35.79 +15 07 30.7 V T05
2020-10-03 05:49:52 S 19 48 41.381 +09 53 23.71 L C51
2020-10-03 07:17:55 C 19 48 48.23 +09 51 37.8 V T08
2020-10-03 07:21:14 C 19 48 48.55 +09 51 32.6 V T08
2020-10-03 07:22:33 C 19 48 48.65 +09 51 31.3 V T08
2020-10-03 07:23:56 S 19 48 49.070 +09 51 31.64 L C51
2020-10-03 07:26:33 C 19 48 48.98 +09 51 26.2 V T08
2020-10-03 08:58:11 S 19 48 56.726 +09 49 39.40 L C51
2020-10-07 07:36:04 C 19 57 05.25 +07 57 10.8 V T08
2020-10-07 07:50:40 C 19 57 06.50 +07 56 53.7 V T08
2020-10-07 08:01:59 C 19 57 07.46 +07 56 40.0 V T08
2020-10-09 07:12:32 C 20 01 29.34 +07 01 09.7 V T05
2020-10-09 07:17:50 C 20 01 29.81 +07 01 03.3 V T05
2020-10-09 07:25:11 C 20 01 30.48 +07 00 54.5 V T05
2020-10-09 07:39:59 C 20 01 31.83 +07 00 37.3 V T05
2020-10-14 03:19:55 C 20 13 02.07 +04 46 45.3 t V19
2020-10-14 03:19:55 C 20 13 02.08 +04 46 45.3 V V19
2020-10-14 04:36:46 C 20 13 09.88 +04 45 18.1 V V19
2020-10-14 04:36:46 C 20 13 09.89 +04 45 18.5 t V19
2020-10-14 07:43:13 C 20 13 29.26 +04 41 48.6 V T08
2020-10-14 07:49:11 C 20 13 29.89 +04 41 41.8 V T08
2020-10-14 07:58:29 C 20 13 30.80 +04 41 30.8 V T08
2020-10-14 08:15:05 C 20 13 32.53 +04 41 11.9 V T08
2020-10-15 03:58:26 C 20 15 37.77 +04 18 44.8 U I41