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
2025-05-27 09:30:29 C 14 39 19.733 +23 49 41.20 V T05
2025-05-27 09:45:04 C 14 39 18.886 +23 49 22.80 V T05
2025-05-27 23:54:01 C 14 38 33.826 +23 31 45.37 V R17
2025-05-28 00:14:25 C 14 38 32.628 +23 31 19.63 V R17
2025-05-28 00:34:44 C 14 38 31.457 +23 30 54.50 V R17
2025-05-28 00:55:11 C 14 38 30.288 +23 30 28.91 V R17
2025-05-28 08:00:33 C 14 38 08.236 +23 21 41.58 V 703
2025-05-28 08:03:50 C 14 38 08.045 +23 21 35.96 V 703
2025-05-28 08:07:08 C 14 38 07.793 +23 21 31.03 V 703
2025-05-28 08:10:26 C 14 38 07.631 +23 21 26.82 V 703
2025-05-28 08:36:51 C 14 38 07.121 +23 21 00.79 V T08
2025-05-28 08:40:54 C 14 38 06.881 +23 20 55.43 V T08
2025-05-28 09:25:45 C 14 38 04.339 +23 19 59.88 V T08
2025-05-28 09:33:27 C 14 38 03.890 +23 19 50.16 V T08
2025-05-29 05:14:40 C 14 37 06.445 +22 55 29.64 V 703
2025-05-29 05:21:29 C 14 37 06.132 +22 55 20.82 V 703
2025-05-29 05:24:54 C 14 37 05.840 +22 55 15.82 V 703
2025-05-30 07:20:03 C 14 35 54.614 +22 23 30.41 V 703
2025-05-30 07:23:20 C 14 35 54.478 +22 23 26.99 V 703
2025-05-30 07:26:38 C 14 35 54.258 +22 23 21.41 V 703
2025-05-30 07:29:55 C 14 35 54.067 +22 23 16.19 V 703
2025-05-30 08:37:43 C 14 35 51.766 +22 22 00.77 V T05
2025-05-30 08:42:04 C 14 35 51.540 +22 21 54.97 V T05
2025-05-30 09:27:24 C 14 35 49.361 +22 20 59.68 V T05
2025-05-30 09:37:13 C 14 35 48.847 +22 20 47.65 V T05
2025-05-31 06:33:44 C 14 34 57.620 +21 55 20.22 X F52
2025-05-31 06:49:23 C 14 34 56.904 +21 55 01.41 X F52
2025-05-31 07:05:02 C 14 34 56.195 +21 54 42.65 X F52
2025-05-31 07:20:54 C 14 34 55.476 +21 54 23.62 X F52
2025-05-31 08:34:34 C 14 34 52.114 +21 52 55.09 V T05
2025-05-31 08:47:40 C 14 34 51.509 +21 52 38.71 V T05
2025-05-31 09:36:32 C 14 34 49.303 +21 51 40.14 V T05
2025-05-31 09:41:00 C 14 34 49.126 +21 51 34.45 V T05
2025-06-01 06:09:12 C 14 34 02.424 +21 26 49.24 V G96
2025-06-01 06:16:39 C 14 34 02.111 +21 26 40.16 V G96
2025-06-01 06:24:06 C 14 34 01.787 +21 26 31.34 V G96
2025-06-01 06:31:34 C 14 34 01.488 +21 26 22.16 V G96
2025-06-01 08:13:01 C 14 33 58.178 +21 24 25.27 V T08
2025-06-01 08:25:29 C 14 33 57.643 +21 24 09.86 V T08
2025-06-01 08:28:07 C 14 33 57.547 +21 24 06.91 V T08
2025-06-01 08:30:07 C 14 33 57.473 +21 24 04.61 V T08
2025-06-01 08:33:31 C 14 33 57.317 +21 24 00.43 V T08
2025-06-01 08:42:00 C 14 33 56.938 +21 23 50.46 V T08
2025-06-01 08:46:08 C 14 33 56.784 +21 23 45.28 V T08
2025-06-01 09:31:27 C 14 33 54.898 +21 22 50.59 V T08
2025-06-03 08:41:54 C 14 32 21.547 +20 26 39.80 V T05
2025-06-03 08:45:55 C 14 32 21.396 +20 26 35.92 V T05
2025-06-03 08:53:27 C 14 32 21.113 +20 26 26.95 V T05
2025-06-03 09:10:28 C 14 32 20.508 +20 26 06.86 V T05
2025-06-03 09:19:48 C 14 32 20.134 +20 25 54.34 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)