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
2025-04-29 23:22:29 C 16 08 01.087 +37 29 24.83 Z C23
2025-04-29 23:31:08 C 16 07 58.82 +37 29 17.7 V D48
2025-04-29 23:40:50 C 16 07 56.34 +37 29 08.1 V D48
2025-04-30 00:49:09 B 16 07 37.65 +37 28 00.0 X L76
2025-04-30 00:53:21 B 16 07 36.60 +37 27 55.2 X L76
2025-04-30 00:57:33 B 16 07 35.48 +37 27 51.7 X L76
2025-04-30 21:31:56 C 16 02 38.278 +37 06 32.51 Z C23
2025-04-30 21:33:06 C 16 02 37.910 +37 06 31.32 Z C23
2025-04-30 22:05:34 C 16 02 30.084 +37 05 58.78 Z C23
2025-04-30 22:06:43 C 16 02 29.738 +37 05 57.52 Z C23
2025-05-02 09:06:15 C 15 54 26.654 +36 28 24.96 V T05
2025-05-02 09:38:45 C 15 54 19.092 +36 27 50.18 V T05
2025-05-02 09:46:28 C 15 54 17.266 +36 27 42.73 V T08
2025-05-02 09:50:34 C 15 54 16.322 +36 27 38.27 V T08
2025-05-02 09:54:32 C 15 54 15.389 +36 27 34.13 V T08
2025-05-02 10:08:45 C 15 54 12.082 +36 27 18.79 V T08
2025-05-02 10:09:03 C 15 54 12.034 +36 27 17.71 V T05
2025-05-02 10:21:58 C 15 54 09.022 +36 27 03.64 V T05
2025-05-03 01:29:15 B 15 50 50.050 +36 10 00.44 W J51
2025-05-03 01:36:44 B 15 50 48.317 +36 09 51.95 W J51
2025-05-03 01:43:58 B 15 50 46.678 +36 09 43.42 W J51
2025-05-03 08:35:58 C 15 49 18.077 +36 01 51.82 V 703
2025-05-03 08:39:21 C 15 49 17.332 +36 01 48.11 V 703
2025-05-03 08:42:44 C 15 49 16.568 +36 01 44.18 V 703
2025-05-03 08:46:03 C 15 49 15.830 +36 01 40.40 V 703
2025-05-03 10:27:29 C 15 48 53.334 +35 59 42.36 V V00
2025-05-03 10:28:38 C 15 48 54.946 +35 59 49.20 V T05
2025-05-03 10:35:36 C 15 48 51.541 +35 59 32.75 V V00
2025-05-03 10:43:40 C 15 48 49.756 +35 59 23.14 V V00
2025-05-03 10:51:45 C 15 48 47.984 +35 59 13.60 V V00
2025-05-03 11:01:29 C 15 48 47.626 +35 59 12.01 V T05
2025-05-03 11:06:06 C 15 48 46.591 +35 59 06.68 V T05
2025-05-03 11:10:01 C 15 48 45.715 +35 59 02.18 V T05
2025-05-04 01:08:24 C 15 45 51.163 +35 42 47.56 V R17
2025-05-04 01:28:55 C 15 45 46.718 +35 42 23.87 V R17
2025-05-04 01:49:28 C 15 45 42.259 +35 42 00.04 V R17
2025-05-04 02:09:59 C 15 45 37.826 +35 41 36.20 V R17
2025-05-04 09:15:48 C 15 44 10.453 +35 33 14.80 V 703
2025-05-04 09:19:16 C 15 44 09.708 +35 33 10.37 V 703
2025-05-04 09:22:44 C 15 44 08.984 +35 33 06.30 V 703
2025-05-04 09:26:10 C 15 44 08.236 +35 33 02.20 V 703
2025-05-04 10:25:51 C 15 43 57.451 +35 31 59.59 V T08
2025-05-04 10:28:31 C 15 43 56.890 +35 31 56.57 V T08
2025-05-04 10:33:49 C 15 43 55.762 +35 31 50.30 V T08
2025-05-04 10:41:04 C 15 43 54.221 +35 31 41.81 V T08
2025-05-04 20:05:21 C 15 42 01.88 +35 20 17.3 X D04
2025-05-04 20:12:59 B 15 42 00.860 +35 20 02.82 W G34
2025-05-04 20:15:05 B 15 42 00.426 +35 20 00.18 W G34
2025-05-04 20:17:11 B 15 41 59.986 +35 19 57.73 W G34
2025-05-04 20:19:16 B 15 41 59.553 +35 19 55.20 W G34
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)