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
2025-06-10 09:19:43 C 02 11 55.166 -56 18 46.08 V W68
2025-06-10 09:34:42 C 02 11 57.739 -56 18 50.72 V W68
2025-06-10 09:38:44 C 02 11 58.438 -56 18 51.95 V W68
2025-06-10 09:48:16 C 02 12 00.127 -56 18 54.58 V W68
2025-06-12 02:58:06 C 02 19 09.125 -56 28 49.15 V M22
2025-06-12 03:02:43 C 02 19 09.924 -56 28 50.56 V M22
2025-06-12 03:11:55 C 02 19 11.484 -56 28 52.72 V M22
2025-06-12 03:28:11 C 02 19 14.246 -56 28 57.07 V M22
2025-06-18 09:50:00 C 02 43 42.053 -57 02 48.66 V W68
2025-06-18 10:15:08 C 02 43 45.898 -57 02 54.71 V W68
2025-06-18 10:31:43 C 02 43 48.439 -57 02 58.42 V W68
2025-06-18 10:38:43 C 02 43 49.471 -57 03 00.11 V W68
2025-06-19 07:07:56 C 02 46 57.718 -57 07 24.56 V W68
2025-06-19 07:18:10 C 02 46 59.237 -57 07 26.98 V W68
2025-06-19 08:14:28 C 02 47 07.752 -57 07 40.30 V W68
2025-06-19 08:18:11 C 02 47 08.338 -57 07 41.52 V W68
2025-06-30 10:29:31 C 03 23 35.194 -58 08 28.90 V W68
2025-06-30 10:37:08 C 03 23 36.070 -58 08 31.06 V W68
2025-06-30 10:43:27 C 03 23 36.847 -58 08 32.39 V W68
2025-06-30 10:46:05 C 03 23 37.147 -58 08 32.86 V W68
2025-07-02 04:06:49 C 03 28 35.777 -58 18 55.44 V M22
2025-07-02 04:15:27 C 03 28 36.790 -58 18 57.96 V M22
2025-07-02 04:22:51 C 03 28 37.632 -58 18 59.80 V M22
2025-07-04 09:40:32 C 03 34 46.682 -58 32 55.43 V W68
2025-07-04 09:45:23 C 03 34 47.270 -58 32 56.51 V W68
2025-07-04 09:59:50 C 03 34 48.859 -58 33 00.61 V W68
2025-07-04 10:19:49 C 03 34 51.096 -58 33 06.12 V W68
2025-07-08 07:40:15 C 03 44 55.306 -58 59 07.44 V W68
2025-07-08 08:00:19 C 03 44 57.343 -58 59 14.14 V W68
2025-07-08 08:26:36 C 03 45 00.046 -58 59 22.34 V W68
2025-07-08 08:36:32 C 03 45 01.078 -58 59 25.19 V W68
2025-07-12 08:45:59 C 03 54 28.318 -59 28 46.52 V W68
2025-07-12 08:50:35 C 03 54 28.831 -59 28 48.61 V W68
2025-07-12 08:58:40 C 03 54 29.561 -59 28 51.13 V W68
2025-07-12 09:16:41 C 03 54 31.226 -59 28 57.22 V W68
2025-07-16 09:48:16 C 04 03 05.938 -60 01 14.88 V W68
2025-07-16 09:52:26 C 04 03 06.274 -60 01 16.39 V W68
2025-07-16 10:22:08 C 04 03 08.626 -60 01 27.05 V W68
2025-08-11 09:13:23 C 04 35 36.852 -64 40 37.56 V W68
2025-08-11 09:23:26 C 04 35 36.984 -64 40 42.53 V W68
2025-08-11 09:33:30 C 04 35 37.138 -64 40 48.14 V W68
2025-08-12 09:09:38 C 04 35 59.107 -64 53 27.64 V W68
2025-08-12 09:19:41 C 04 35 59.203 -64 53 33.14 V W68
2025-08-12 09:29:44 C 04 35 59.213 -64 53 39.37 V W68
2025-08-12 09:39:48 C 04 35 59.366 -64 53 44.52 V W68
2025-08-20 23:44:38 C 04 35 51.094 -66 48 13.43 V M22
2025-08-20 23:54:38 C 04 35 50.940 -66 48 19.19 V M22
2025-08-21 00:04:37 C 04 35 50.719 -66 48 25.02 V M22
2025-08-27 02:52:53 C 04 31 35.669 -68 11 56.11 V M22
2025-08-27 03:45:16 C 04 31 33.254 -68 12 26.21 V M22
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)