1580 Betulia (1950 KA)

NEO ⇩ IMP ⇩ COV ★ EPH ⇩ OBS ⇩ Radar ⇩ Gaia
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.4876047101 ± 2.00e+00
Semi-major axis (a)2.1949743206 AU ± 3.00e+00
Inclination (i)52.18777815° ± 4.00e+00
Long. of Asc. Node (Ω)62.22480892° ± 5.00e+00
Arg. of Perihelion (ω)159.71713922° ± 6.00e+00
Mean Anomaly (M)80.26713945° ± 3.89e-05
Mean Motion (n)0.3030875594°/day ± 6.21e-01
Perihelion dist (q)1.12469450 AU ± 4.65e+00
Aphelion dist (Q)3.26525414 AU ± 6.26e+00
Orbital Period3.25195229 yr ± 6.67e+00
NGA Modelr2
A21.40142724e-06 AU/d²
Physical Parameters
H (abs. magnitude)14.54
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-04-26
RMS Residual0.282″
Uncertainty0
Orbit TypeAmor
MOID0.133321 AU
Observations Used1981
Radar Obs Used10
Gaia Obs Used93
Oppositions46
Arc Total1950-2016
First Observation Used1950-05-22
Last Observation Used2025-12-13
Observations (2056)
Date Type RA Dec Mag Band Observatory
2004-12-31 22:03:51 C 03 58 27.64 +63 30 48.2 o 084
2005-01-12 01:27:58 C 03 21 53.37 +63 07 42.9 o 084
2005-01-29 03:48:52 C 02 49 41.01 +61 30 39.1 c 704
2005-01-29 04:06:37 C 02 49 40.09 +61 30 35.7 c 704
2005-01-29 04:29:16 C 02 49 39.10 +61 30 29.7 c 704
2005-01-29 05:07:14 C 02 49 37.39 +61 30 19.9 c 704
2005-03-13 02:34:27 C 03 07 51.64 +60 04 41.8 c 704
2005-03-13 02:50:09 C 03 07 52.75 +60 04 43.3 c 704
2005-03-13 03:05:54 C 03 07 53.87 +60 04 44.2 c 704
2005-03-13 03:22:14 C 03 07 54.90 +60 04 45.9 c 704
2005-03-13 03:37:54 C 03 07 55.97 +60 04 47.4 c 704
2005-03-23 02:37:07 C 03 26 21.49 +60 34 59.6 c 704
2005-03-23 02:52:30 C 03 26 22.79 +60 35 01.4 c 704
2005-03-23 03:07:52 C 03 26 24.13 +60 35 04.5 c 704
2005-03-23 03:23:14 C 03 26 25.52 +60 35 06.2 c 704
2005-03-23 03:38:38 C 03 26 26.77 +60 35 08.0 c 704
2005-03-31 02:45:43 C 03 44 44.15 +61 08 04.7 c 704
2005-03-31 03:00:31 C 03 44 45.62 +61 08 07.2 c 704
2005-03-31 03:30:19 C 03 44 48.81 +61 08 12.1 c 704
2005-03-31 03:45:05 C 03 44 50.37 +61 08 14.5 c 704
2005-04-11 20:41:23 C 04 17 57.73 +62 03 11.8 o A32
2005-04-11 20:49:29 C 04 17 58.88 +62 03 13.6 o A32
2005-04-11 20:57:34 C 04 17 59.96 +62 03 14.5 o A32
2005-04-11 21:05:41 C 04 18 00.99 +62 03 16.7 o A32
2005-04-11 21:13:46 C 04 18 02.11 +62 03 17.9 o A32
2005-05-17 21:48:49 C 06 51 55.64 +62 44 28.3 o A32
2005-05-17 22:05:01 C 06 51 59.18 +62 44 24.2 o A32
2005-05-17 22:21:11 C 06 52 02.71 +62 44 20.2 o A32
2005-05-17 22:37:22 C 06 52 06.27 +62 44 16.0 o A32
2007-10-09 08:46:18 C 05 24 08.24 +26 18 54.8 c 704
2007-10-09 09:02:19 C 05 24 08.05 +26 19 01.7 c 704
2007-10-09 09:34:18 C 05 24 07.88 +26 19 12.7 c 704
2007-10-09 09:50:22 C 05 24 07.57 +26 19 18.7 c 704
2007-10-15 08:45:45 C 05 22 05.17 +27 14 08.0 o 704
2007-10-15 09:02:23 C 05 22 05.09 +27 14 12.8 o 704
2007-10-15 09:35:15 C 05 22 04.28 +27 14 27.7 o 704
2007-10-15 09:51:41 C 05 22 03.91 +27 14 32.5 o 704
2007-11-02 08:51:02 C 05 08 17.03 +30 15 31.2 c 704
2007-11-02 09:25:00 C 05 08 15.45 +30 15 45.9 c 704
2007-11-02 09:41:56 C 05 08 14.58 +30 15 54.2 c 704
2007-11-02 09:58:53 C 05 08 13.84 +30 16 01.7 c 704
2007-11-07 09:02:11 C 05 02 13.52 +31 08 06.2 c 704
2007-11-07 09:19:52 C 05 02 12.51 +31 08 12.9 c 704
2007-11-07 09:37:37 C 05 02 11.54 +31 08 21.6 c 704
2007-11-07 09:55:24 C 05 02 10.54 +31 08 29.5 c 704
2007-11-07 10:13:24 C 05 02 09.55 +31 08 37.0 c 704
2007-11-17 07:37:30 C 04 47 23.42 +32 49 38.6 c 704
2007-11-17 07:55:24 C 04 47 21.97 +32 49 46.8 c 704
2007-11-17 07:55:42 C 04 47 22.14 +32 49 46.2 c 704
2007-11-17 08:13:36 C 04 47 20.76 +32 49 53.4 c 704
Radar Observations (22)
Epoch (UTC)ValueSigmaUnitsFreq (MHz)ReceiverTransmitter
1976-05-18 05:56:50 225980 7 Hz 2380 -1 -1
1976-05-18.247801 22598000 100 Hz 2380 251 251
1976-05-19 05:52:16 186012.5 7 Hz 2380 -1 -1
1976-05-19.244630 18601250 100 Hz 2380 251 251
1989-05-23 12:00:00 501134 20 Hz 8495 -14 -14
1989-05-23.500000 50113400 2000 Hz 8495 253 253
1989-05-26 01:42:00 185537450 12 us 2380 -1 -1
1989-05-26.070833 18553745000 12000 us 2380 251 251
1989-05-28 01:38:00 185094484 12 us 2380 -1 -1
1989-05-28.068056 18509448400 12000 us 2380 251 251
1989-05-29 00:20:00 -72175 5 Hz 2380 -1 -1
1989-05-29.013889 -7217500 500 Hz 2380 251 251
2002-05-28.997222 23747341100 10000 us 2380 251 251
2002-05-30 01:10:00 237420023 2 us 2380 -1 -1
2002-05-30 01:10:00 -16023.93 1 Hz 2380 -1 -1
2002-05-30.048611 23742002300 2000 us 2380 251 251
2002-06-01 00:57:00 240888928 2 us 2380 -1 -1
2002-06-01 00:57:00 -80205.3478 1 Hz 2380 -1 -1
2002-06-01.039583 24088892800 2000 us 2380 251 251
2002-06-03 00:09:00 248731233 2 us 2380 -1 -1
2002-06-03 00:09:00 -138436.315 1 Hz 2380 -1 -1
2002-06-03.006250 24873123300 2000 us 2380 251 251
Station codes
-14 DSS-14 Goldstone (70-m) -1 Arecibo (305-m, 1963–2020)