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
2024-06-25 14:10:01 C 16 40 53.56 +06 59 45.1 V D29
2024-06-25 14:30:23 C 16 40 51.76 +06 59 33.8 V D29
2024-06-28 09:32:49 C 16 35 24.175 +06 19 51.42 X F52
2024-06-28 09:48:01 C 16 35 22.938 +06 19 42.05 X F52
2024-06-28 10:03:17 C 16 35 21.702 +06 19 32.66 X F52
2024-07-01 10:01:05 C 16 30 06.223 +05 34 04.87 V T05
2024-07-01 10:05:39 C 16 30 05.849 +05 34 01.88 V T05
2024-07-01 10:16:20 C 16 30 05.066 +05 33 55.91 V T05
2024-07-01 10:36:26 C 16 30 03.631 +05 33 42.34 V T05
2024-07-01 20:54:55 C 16 29 21.817 +05 26 57.48 W M01
2024-07-01 21:01:35 C 16 29 21.320 +05 26 52.50 W M01
2024-07-02 09:40:18 C 16 28 30.753 +05 18 36.86 X F51
2024-07-02 09:58:35 C 16 28 29.499 +05 18 24.73 X F51
2024-07-02 10:16:50 C 16 28 28.236 +05 18 12.66 X F51
2024-07-02 10:35:11 C 16 28 26.973 +05 18 00.47 X F51
2024-07-09 08:41:54 C 16 19 13.346 +03 24 02.46 X F51
2024-07-09 08:59:00 C 16 19 12.510 +03 23 50.38 X F51
2024-07-09 09:16:08 C 16 19 11.672 +03 23 38.19 X F51
2024-07-09 09:33:19 C 16 19 10.838 +03 23 26.04 X F51
2024-07-29 07:32:37 C 16 09 45.303 -02 18 28.94 X F51
2024-07-29 07:47:34 C 16 09 45.315 -02 18 39.38 X F51
2024-07-29 08:02:27 C 16 09 45.317 -02 18 49.75 X F51
2024-07-29 08:17:22 C 16 09 45.327 -02 19 00.21 X F51
2024-08-03 07:02:56 C 16 10 42.091 -03 41 18.89 X F52
2024-08-03 07:22:49 C 16 10 42.298 -03 41 32.33 X F52
2024-08-03 07:42:47 C 16 10 42.506 -03 41 46.14 X F52
2024-08-03 08:02:42 C 16 10 42.702 -03 41 59.63 X F52
2025-04-07 02:36:47 C 19 31 59.285 +36 05 38.69 Z C23
2025-04-07 03:30:35 C 19 31 34.339 +36 07 24.13 Z C23
2025-04-07 11:55:18 C 19 27 46.814 +36 23 31.67 V T08
2025-04-07 12:02:07 C 19 27 43.735 +36 23 45.42 V T08
2025-04-07 12:40:11 C 19 27 26.105 +36 25 00.77 V T08
2025-04-09 13:59:38 C 19 05 02.436 +37 46 45.62 V T05
2025-04-09 14:02:54 C 19 05 00.941 +37 46 50.59 V T05
2025-04-09 14:37:58 C 19 04 44.520 +37 47 44.09 V T05
2025-04-13 22:43:04 B 18 18 56.41 +39 36 48.1 X L99
2025-04-13 22:46:59 B 18 18 54.84 +39 36 49.7 X L99
2025-04-13 22:50:54 B 18 18 53.13 +39 36 54.1 X L99
2025-04-14 12:57:56 C 18 12 54.336 +39 46 09.59 V T05
2025-04-14 13:02:00 C 18 12 52.570 +39 46 11.86 V T05
2025-04-14 13:05:59 C 18 12 50.839 +39 46 14.48 V T05
2025-04-14 13:14:08 C 18 12 47.261 +39 46 19.45 V T05
2025-04-14 13:18:54 C 18 12 45.168 +39 46 23.48 V T08
2025-04-14 13:22:51 C 18 12 43.457 +39 46 25.97 V T08
2025-04-14 13:48:50 C 18 12 32.107 +39 46 42.17 V T08
2025-04-14 13:52:48 C 18 12 30.362 +39 46 44.47 V T08
2025-04-16 11:41:55 C 17 53 36.906 +40 05 33.40 V 703
2025-04-16 11:45:49 C 17 53 35.293 +40 05 34.55 V 703
2025-04-16 11:49:35 C 17 53 33.691 +40 05 35.52 V 703
2025-04-16 11:53:15 C 17 53 32.168 +40 05 37.61 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)