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
2025-05-21 08:14:28 C 14 49 07.849 +26 53 44.27 V 703
2025-05-21 08:17:42 C 14 49 07.568 +26 53 40.81 V 703
2025-05-21 09:23:36 C 14 49 02.921 +26 52 21.68 V T08
2025-05-21 09:28:13 C 14 49 02.530 +26 52 15.92 V T08
2025-05-21 09:41:08 C 14 49 01.349 +26 51 59.36 V T08
2025-05-21 09:44:32 C 14 49 01.075 +26 51 54.58 V T08
2025-05-21 09:49:09 C 14 49 00.662 +26 51 48.64 V T08
2025-05-21 09:55:50 C 14 49 00.084 +26 51 40.32 V T08
2025-05-21 10:08:18 C 14 48 58.958 +26 51 24.16 V T08
2025-05-21 10:19:57 C 14 48 57.931 +26 51 09.07 V T08
2025-05-21 23:53:40 C 14 47 53.544 +26 33 40.03 V R17
2025-05-22 00:14:26 C 14 47 51.785 +26 33 13.32 V R17
2025-05-22 00:34:40 C 14 47 50.069 +26 32 47.15 V R17
2025-05-22 00:55:12 C 14 47 48.329 +26 32 20.80 V R17
2025-05-22 12:42:16 C 14 46 53.002 +26 17 14.24 V T05
2025-05-22 12:48:13 C 14 46 52.529 +26 17 06.11 V T05
2025-05-22 12:56:43 C 14 46 51.912 +26 16 55.56 V T05
2025-05-22 13:45:34 C 14 46 48.029 +26 15 50.80 V T05
2025-05-23 09:12:24 C 14 45 23.585 +25 51 06.08 V T05
2025-05-23 09:16:57 C 14 45 23.186 +25 50 59.86 V T05
2025-05-23 09:31:03 C 14 45 22.118 +25 50 42.11 V T05
2025-05-23 09:47:43 C 14 45 20.798 +25 50 20.87 V T05
2025-05-23 22:26:57 C 14 44 27.550 +25 34 05.48 q R88
2025-05-23 22:35:03 C 14 44 26.878 +25 33 54.40 q R88
2025-05-24 09:18:05 C 14 43 43.054 +25 20 28.54 V T08
2025-05-24 09:22:43 C 14 43 42.691 +25 20 22.70 V T08
2025-05-24 09:37:54 C 14 43 41.599 +25 20 02.98 V T08
2025-05-24 09:46:32 C 14 43 40.987 +25 19 52.64 V T08
2025-05-24 23:51:55 C 14 42 45.569 +25 01 58.91 V R17
2025-05-25 00:14:34 C 14 42 43.973 +25 01 29.89 V R17
2025-05-25 00:34:18 C 14 42 42.566 +25 01 04.87 V R17
2025-05-25 00:54:01 C 14 42 41.191 +25 00 39.64 V R17
2025-05-25 09:04:56 C 14 42 10.351 +24 50 23.42 V T08
2025-05-25 09:09:36 C 14 42 10.049 +24 50 18.17 V T08
2025-05-25 09:20:34 C 14 42 09.266 +24 50 04.24 V T08
2025-05-25 09:36:37 C 14 42 08.095 +24 49 43.18 V T08
2025-05-26 08:19:26 C 14 40 44.810 +24 21 03.38 V 703
2025-05-26 08:22:40 C 14 40 44.584 +24 20 59.93 V 703
2025-05-26 08:25:55 C 14 40 44.382 +24 20 55.39 V 703
2025-05-26 08:29:09 C 14 40 44.170 +24 20 51.43 V 703
2025-05-26 09:22:37 C 14 40 41.693 +24 19 50.56 V T05
2025-05-26 09:32:01 C 14 40 41.074 +24 19 38.50 V T05
2025-05-26 09:36:36 C 14 40 40.822 +24 19 33.35 V T05
2025-05-26 09:51:12 C 14 40 39.830 +24 19 14.52 V T05
2025-05-27 08:35:47 C 14 39 22.165 +23 50 43.01 V 703
2025-05-27 08:39:07 C 14 39 21.906 +23 50 38.94 V 703
2025-05-27 08:42:28 C 14 39 21.748 +23 50 34.55 V 703
2025-05-27 08:45:49 C 14 39 21.413 +23 50 30.48 V 703
2025-05-27 09:15:24 C 14 39 20.686 +23 50 00.38 V T05
2025-05-27 09:19:59 C 14 39 20.414 +23 49 54.30 V T05
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)