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
2023-03-17 14:17:06 C 15 47 58.023 -25 03 34.98 U F52
2023-03-31 13:38:38 C 15 53 32.091 -22 25 51.20 U F52
2023-03-31 13:54:10 C 15 53 32.060 -22 25 41.86 U F52
2023-03-31 14:09:42 C 15 53 32.032 -22 25 32.60 U F52
2023-03-31 14:25:11 C 15 53 32.004 -22 25 23.25 U F52
2023-04-02 00:36:47 C 15 53 32.083 -22 04 21.72 V M22
2023-04-02 00:39:24 C 15 53 32.129 -22 04 19.81 V M22
2023-04-02 01:18:45 C 15 53 32.002 -22 03 54.86 V M22
2023-04-02 01:22:42 C 15 53 31.930 -22 03 52.49 V M22
2023-04-15 11:31:43 C 15 47 57.083 -18 00 39.33 U F52
2023-04-15 11:48:11 C 15 47 56.482 -18 00 24.82 U F52
2023-04-15 12:04:45 C 15 47 55.875 -18 00 10.18 U F52
2023-04-17 10:15:50 C 15 46 18.631 -17 18 25.70 V 703
2023-04-17 10:23:23 C 15 46 18.214 -17 18 19.01 V 703
2023-04-17 10:30:56 C 15 46 17.958 -17 18 12.10 V 703
2023-04-17 10:38:29 C 15 46 17.663 -17 18 04.61 V 703
2023-04-18 05:47:28 C 15 45 34.397 -17 00 03.92 V W68
2023-04-18 05:50:44 C 15 45 34.298 -16 59 59.60 V W68
2023-04-18 06:27:30 C 15 45 32.726 -16 59 25.40 V W68
2023-04-18 06:32:12 C 15 45 32.515 -16 59 21.30 V W68
2023-04-20 00:42:58 C 15 43 49.222 -16 19 10.60 V M22
2023-04-20 00:47:41 C 15 43 49.001 -16 19 06.24 V M22
2023-04-20 00:55:39 C 15 43 48.617 -16 18 57.42 V M22
2023-04-20 01:11:04 C 15 43 47.904 -16 18 43.09 V M22
2023-04-21 10:26:51 C 15 42 19.955 -15 46 24.24 V G96
2023-04-21 10:34:16 C 15 42 19.595 -15 46 16.82 V G96
2023-04-21 10:49:06 C 15 42 18.828 -15 46 02.03 V G96
2023-04-24 05:05:51 C 15 39 08.657 -14 38 49.85 V W68
2023-04-24 05:09:13 C 15 39 08.537 -14 38 47.44 V W68
2023-04-24 05:44:21 C 15 39 06.578 -14 38 12.12 V W68
2023-04-24 05:56:06 C 15 39 05.995 -14 38 00.10 V W68
2023-04-25 08:58:10 C 15 37 42.416 -14 10 10.78 V 703
2023-04-25 09:05:16 C 15 37 41.999 -14 10 04.33 V 703
2023-04-25 09:12:22 C 15 37 41.592 -14 09 56.27 V 703
2023-04-25 09:19:28 C 15 37 41.214 -14 09 47.05 V 703
2023-04-30 21:18:13 C 15 30 15.478 -11 48 11.95 V M22
2023-04-30 21:20:54 C 15 30 15.163 -11 48 10.51 V M22
2023-04-30 21:25:00 C 15 30 14.959 -11 48 06.62 V M22
2023-04-30 21:32:26 C 15 30 14.474 -11 47 58.20 V M22
2023-05-02 03:52:47 C 15 28 24.266 -11 14 45.46 V W68
2023-05-02 03:55:24 C 15 28 24.106 -11 14 42.04 V W68
2023-05-02 03:59:20 C 15 28 23.839 -11 14 38.40 V W68
2023-05-02 04:07:12 C 15 28 23.352 -11 14 29.47 V W68
2023-05-09 06:05:17 C 15 17 35.441 -08 07 52.00 V W68
2023-05-09 06:09:51 C 15 17 35.141 -08 07 47.06 V W68
2023-05-09 06:17:42 C 15 17 34.632 -08 07 38.93 V W68
2023-05-09 06:37:03 C 15 17 33.271 -08 07 18.16 V W68
2023-05-10 07:18:48 C 15 15 57.514 -07 40 49.08 V G96
2023-05-10 07:26:30 C 15 15 56.984 -07 40 40.91 V G96
2023-05-10 07:34:09 C 15 15 56.452 -07 40 32.70 V G96