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
2020-10-15 04:19:13 C 20 15 39.91 +04 18 21.2 U I41
2020-10-16 05:14:26 C 20 18 20.748 +03 50 20.86 U F52
2020-10-16 05:48:04 C 20 18 24.215 +03 49 43.24 U F52
2020-10-16 06:04:47 C 20 18 25.927 +03 49 24.30 U F52
2020-10-17 01:57:30 C 20 20 36.43 +03 27 08.3 V G96
2020-10-17 02:05:40 C 20 20 37.32 +03 26 58.5 V G96
2020-10-17 02:13:50 C 20 20 38.15 +03 26 49.6 V G96
2020-10-17 02:21:59 C 20 20 39.02 +03 26 40.4 V G96
2020-10-17 04:28:50 C 20 20 52.56 +03 24 18.5 U I41
2020-10-17 05:57:40 C 20 21 02.05 +03 22 39.4 U I41
2020-10-20 00:00:34 C 20 28 29.81 +02 10 09.1 q W46
2020-10-20 00:28:17 C 20 28 32.91 +02 09 39.9 q W46
2020-10-20 01:10:42 C 20 28 37.59 +02 08 54.1 q W46
2020-10-29 02:55:41 C 20 55 24.02 -01 34 11.1 V 703
2020-10-29 03:02:27 C 20 55 24.83 -01 34 17.5 V 703
2020-10-29 03:09:13 C 20 55 25.75 -01 34 24.0 V 703
2020-10-30 03:23:33 C 20 58 35.77 -01 57 29.5 V G96
2020-10-30 03:37:38 C 20 58 37.58 -01 57 42.9 V G96
2020-10-30 03:56:04 C 20 58 39.91 -01 58 00.4 V G96
2020-10-30 04:03:27 C 20 58 40.86 -01 58 07.2 V G96
2020-11-01 04:57:52 C 21 05 11.260 -02 43 27.85 U F52
2020-11-01 05:15:32 C 21 05 13.543 -02 43 44.13 U F52
2020-11-01 05:33:12 C 21 05 15.824 -02 44 00.13 U F52
2020-11-01 07:25:02 C 21 05 30.32 -02 45 42.0 V T05
2020-11-01 07:29:40 C 21 05 30.96 -02 45 46.4 V T05
2020-11-01 07:40:55 C 21 05 32.42 -02 45 56.4 V T05
2020-11-01 07:57:23 C 21 05 34.61 -02 46 11.0 V T05
2020-11-05 05:45:08 C 21 18 25.37 -04 08 25.8 V T05
2020-11-05 05:50:24 C 21 18 26.09 -04 08 30.3 V T05
2020-11-05 06:15:29 C 21 18 29.46 -04 08 50.9 V T05
2020-11-08 05:07:51 C 21 28 29.179 -05 06 40.53 U F52
2020-11-08 05:43:09 C 21 28 34.044 -05 07 08.27 U F52
2020-11-08 06:00:45 C 21 28 36.476 -05 07 22.15 U F52
2020-11-12 03:58:02 C 21 42 11.63 -06 17 56.0 V V19
2020-11-12 04:31:22 C 21 42 16.42 -06 18 19.8 V V19
2020-11-17 02:29:51 C 21 59 49.79 -07 36 27.4 V 703
2020-11-17 02:37:29 C 21 59 50.95 -07 36 31.4 V 703
2020-11-17 02:45:08 C 21 59 51.99 -07 36 36.2 V 703
2020-11-17 02:52:46 C 21 59 53.16 -07 36 40.5 V 703
2020-11-18 02:36:18 C 22 03 28.36 -07 50 56.6 V G96
2020-11-18 02:43:43 C 22 03 29.44 -07 51 00.7 V G96
2020-11-18 03:00:04 C 22 03 31.87 -07 51 10.8 V G96
2020-11-20 01:23:44 C 22 10 35.86 -08 17 37.1 V 703
2020-11-20 01:31:21 C 22 10 36.91 -08 17 40.9 V 703
2020-11-20 01:38:57 C 22 10 37.98 -08 17 45.1 V 703
2020-11-20 01:46:34 C 22 10 39.15 -08 17 49.6 V 703
2020-11-26 03:53:45 C 22 33 11.98 -09 28 38.4 V G96
2020-11-26 04:04:58 C 22 33 13.69 -09 28 42.8 V G96
2020-11-26 04:15:54 C 22 33 15.34 -09 28 47.5 V G96
2020-11-26 04:26:51 C 22 33 17.02 -09 28 52.4 V G96