4034 Vishnu (1986 PA)

NEO PHA MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4440123499 ± 1.15e-02
Semi-major axis (a)1.0593661162 AU ± 1.24e-02
Inclination (i)11.16925766° ± 6.63e-01
Long. of Asc. Node (Ω)157.86471855° ± 1.66e+00
Arg. of Perihelion (ω)296.70262904° ± 3.25e+00
Mean Anomaly (M)261.95042071° ± 1.98e+00
Mean Motion (n)0.9039473986°/day ± 1.59e-02
Perihelion dist (q)0.58899448 AU ± 1.40e-02
Aphelion dist (Q)1.52973775 AU ± 2.17e-02
Orbital Period1.09035801 yr ± 1.92e-02
NGA Modelr2
A2-3.37481791e-06 AU/d²
Physical Parameters
H (abs. magnitude)18.50
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.333″
Uncertainty0
Orbit TypeApollo
MOID0.018713 AU
Observations Used1245
Radar Obs Used1
Oppositions1
Arc Total1986-2025
First Observation Used1986-08-02
Last Observation Used2025-06-24
Observations (1315)
Date Type RA Dec Mag Band Observatory
2025-05-10 22:07:40 B 15 17 02.386 +32 18 16.78 Z K35
2025-05-10 22:09:45 B 15 17 02.078 +32 18 14.22 Z K35
2025-05-10 22:12:19 B 15 17 01.680 +32 18 10.69 Z K35
2025-05-10 22:12:50 B 15 17 01.613 +32 18 09.97 Z K35
2025-05-11 11:56:20 C 15 15 01.842 +32 00 43.02 X F52
2025-05-11 12:00:06 C 15 15 01.298 +32 00 37.63 X F52
2025-05-11 12:12:30 C 15 14 59.405 +32 00 21.78 X F52
2025-05-11 12:16:17 C 15 14 58.847 +32 00 16.84 X F52
2025-05-11 12:28:28 C 15 14 57.022 +32 00 00.63 X F52
2025-05-11 12:32:11 C 15 14 56.472 +31 59 55.88 X F52
2025-05-11 12:44:26 C 15 14 54.644 +31 59 39.55 X F52
2025-05-11 12:48:10 C 15 14 54.074 +31 59 34.65 X F52
2025-05-11 14:23:34 C 15 14 40.046 +31 57 27.36 V T05
2025-05-11 14:29:37 C 15 14 39.199 +31 57 18.86 V T05
2025-05-11 14:35:01 C 15 14 38.362 +31 57 11.59 V T05
2025-05-11 14:39:43 C 15 14 37.692 +31 57 05.69 V T05
2025-05-11 22:11:34 B 15 13 36.940 +31 47 13.73 X B72
2025-05-11 22:18:12 B 15 13 35.982 +31 47 05.29 X B72
2025-05-11 22:24:20 B 15 13 35.093 +31 46 57.51 X B72
2025-05-11 22:36:33 B 15 13 33.319 +31 46 41.77 Z K35
2025-05-11 22:37:35 B 15 13 33.185 +31 46 40.19 Z K35
2025-05-12 21:13:31 B 15 10 30.497 +31 17 21.95 Z K35
2025-05-12 21:14:32 B 15 10 30.338 +31 17 20.29 Z K35
2025-05-12 21:17:39 B 15 10 29.904 +31 17 16.76 Z K35
2025-05-12 21:20:44 B 15 10 29.530 +31 17 13.13 Z K35
2025-05-13 10:03:45 C 15 08 49.850 +31 00 57.02 V T08
2025-05-13 10:12:43 C 15 08 48.578 +31 00 45.40 V T08
2025-05-13 10:16:43 C 15 08 48.050 +31 00 40.14 V T08
2025-05-13 10:58:48 C 15 08 42.286 +30 59 45.35 V T08
2025-05-13 23:14:30 C 15 07 09.26 +30 43 34.5 X C40
2025-05-13 23:16:43 C 15 07 08.97 +30 43 31.3 X C40
2025-05-13 23:18:56 C 15 07 08.63 +30 43 28.6 X C40
2025-05-13 23:21:09 C 15 07 08.41 +30 43 25.7 X C40
2025-05-13 23:23:22 C 15 07 08.08 +30 43 23.3 X C40
2025-05-13 23:25:35 C 15 07 07.84 +30 43 19.0 X C40
2025-05-13 23:27:48 C 15 07 07.54 +30 43 16.8 X C40
2025-05-13 23:30:01 C 15 07 07.25 +30 43 13.8 X C40
2025-05-13 23:32:08 C 15 07 06.94 +30 43 11.1 X C40
2025-05-13 23:34:10 C 15 07 06.74 +30 43 08.5 X C40
2025-05-13 23:36:12 C 15 07 06.46 +30 43 05.7 X C40
2025-05-13 23:38:13 C 15 07 06.15 +30 43 03.5 X C40
2025-05-13 23:39:19 B 15 07 06.790 +30 43 01.27 Z K35
2025-05-13 23:40:20 B 15 07 06.653 +30 42 59.87 Z K35
2025-05-13 23:42:25 B 15 07 06.370 +30 42 57.46 Z K35
2025-05-13 23:44:59 B 15 07 06.091 +30 42 54.32 Z K35
2025-05-15 07:28:47 C 15 03 18.047 +30 01 41.23 V G96
2025-05-15 07:36:21 C 15 03 17.111 +30 01 31.26 V G96
2025-05-15 07:43:56 C 15 03 16.175 +30 01 21.25 V G96
2025-05-15 07:51:28 C 15 03 15.257 +30 01 11.32 V G96
2025-05-15 10:27:17 C 15 02 56.353 +29 57 44.21 V 703
Radar Observations (2)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1989-03-26 14:00:00 56566 2 Hz 2380 -1 -1
1989-03-26.583333 5656600 200 Hz 2380 251 251
Station codes
-1 Arecibo (305-m, 1963–2020)