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
2025-04-25 22:52:58 C 16 34 10.910 +38 55 32.63 Z C23
2025-04-25 23:01:28 C 16 34 08.405 +38 55 26.11 Z C23
2025-04-25 23:42:01 C 16 33 56.131 +38 54 57.46 Z C23
2025-04-26 02:16:46 C 16 33 10.404 +38 53 15.72 V R17
2025-04-26 02:37:19 C 16 33 04.142 +38 53 00.31 V R17
2025-04-26 02:57:50 C 16 32 57.871 +38 52 44.72 V R17
2025-04-26 03:18:22 C 16 32 51.593 +38 52 28.96 V R17
2025-04-26 10:11:59 C 16 30 53.335 +38 47 04.20 V T05
2025-04-26 10:16:06 C 16 30 52.087 +38 47 01.07 V T05
2025-04-26 10:20:43 C 16 30 50.707 +38 46 57.58 V T05
2025-04-26 10:43:29 C 16 30 43.879 +38 46 40.69 V T05
2025-04-26 22:29:16 C 16 27 22.399 +38 36 41.98 Z C23
2025-04-26 22:51:42 C 16 27 15.878 +38 36 24.37 Z C23
2025-04-26 23:31:06 C 16 27 04.442 +38 35 53.12 Z C23
2025-04-27 03:07:43 C 16 26 04.80 +38 32 49.1 V H21
2025-04-27 03:10:30 C 16 26 04.00 +38 32 46.4 V H21
2025-04-27 03:13:16 C 16 26 03.21 +38 32 44.5 V H21
2025-04-27 03:16:03 C 16 26 02.42 +38 32 42.4 V H21
2025-04-27 03:18:50 C 16 26 01.63 +38 32 40.1 V H21
2025-04-27 03:22:05 C 16 26 00.72 +38 32 37.6 V H21
2025-04-27 10:19:11 C 16 24 01.400 +38 26 57.52 V 703
2025-04-27 10:22:30 C 16 24 00.428 +38 26 54.85 V 703
2025-04-27 10:25:49 C 16 23 59.489 +38 26 51.86 V 703
2025-04-27 10:29:07 C 16 23 58.409 +38 26 49.24 V 703
2025-04-27 11:39:49 C 16 23 40.356 +38 25 56.24 V T08
2025-04-27 11:42:30 C 16 23 39.581 +38 25 53.83 V T08
2025-04-27 12:20:36 C 16 23 28.534 +38 25 21.36 V T08
2025-04-27 12:51:33 C 16 23 19.574 +38 24 54.18 V T08
2025-04-27 22:07:52 C 16 20 49.35 +38 16 16.6 Z C23
2025-04-27 22:23:05 C 16 20 45.14 +38 16 03.6 Z C23
2025-04-27 22:31:55 C 16 20 42.67 +38 15 56.0 Z C23
2025-04-27 23:02:18 B 16 20 35.474 +38 15 37.98 W J51
2025-04-27 23:17:30 B 16 20 31.217 +38 15 25.52 W J51
2025-04-27 23:31:44 B 16 20 27.274 +38 15 13.39 W J51
2025-04-28 11:12:03 C 16 17 18.187 +38 04 46.92 V T05
2025-04-28 11:14:40 C 16 17 17.462 +38 04 44.62 V T05
2025-04-28 12:00:41 C 16 17 04.654 +38 04 02.86 V T05
2025-04-28 20:37:21 C 16 14 50.536 +37 55 27.51 V G33
2025-04-28 20:40:43 C 16 14 49.675 +37 55 24.99 V G33
2025-04-28 20:44:05 C 16 14 48.809 +37 55 21.74 V G33
2025-04-29 00:55:23 B 16 13 41.731 +37 51 32.80 X K87
2025-04-29 00:57:25 B 16 13 41.203 +37 51 31.03 X K87
2025-04-29 00:59:28 B 16 13 40.620 +37 51 29.56 X K87
2025-04-29 10:17:48 C 16 11 16.530 +37 42 37.33 V 703
2025-04-29 10:21:07 C 16 11 15.666 +37 42 34.09 V 703
2025-04-29 10:24:25 C 16 11 14.784 +37 42 30.92 V 703
2025-04-29 10:27:44 C 16 11 13.913 +37 42 27.54 V 703
2025-04-29 21:52:49 C 16 08 23.981 +37 30 51.55 Z C23
2025-04-29 22:48:24 C 16 08 09.809 +37 29 57.80 Z C23
2025-04-29 23:20:54 C 16 08 01.46 +37 29 27.8 V D48
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)