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
2023-12-04 02:56:21 C 03 35 51.470 +15 51 57.92 V W68
2023-12-04 07:55:44 C 03 35 32.773 +15 52 47.46 V G96
2023-12-04 08:03:09 C 03 35 32.309 +15 52 48.76 V G96
2023-12-04 08:10:34 C 03 35 31.834 +15 52 50.09 V G96
2023-12-04 08:17:58 C 03 35 31.369 +15 52 51.35 V G96
2023-12-10 09:28:01 C 03 26 46.721 +16 19 16.36 V T08
2023-12-10 09:35:11 C 03 26 46.330 +16 19 18.95 V T08
2023-12-10 09:43:41 C 03 26 45.780 +16 19 19.02 V T08
2023-12-10 09:59:06 C 03 26 44.798 +16 19 22.33 V T08
2023-12-16 04:43:53 C 03 18 58.770 +16 44 58.52 V G96
2023-12-16 04:51:21 C 03 18 58.374 +16 44 59.89 V G96
2023-12-16 04:58:48 C 03 18 57.967 +16 45 01.40 V G96
2023-12-16 05:06:17 C 03 18 57.560 +16 45 02.70 V G96
2023-12-17 19:23:00 B 03 16 56.611 +16 52 11.57 X K74
2023-12-17 19:35:01 B 03 16 55.992 +16 52 13.87 X K74
2023-12-17 19:47:03 B 03 16 55.366 +16 52 15.42 X K74
2023-12-28 09:48:56 C 03 05 10.842 +17 41 11.72 X F51
2023-12-28 10:05:49 C 03 05 10.153 +17 41 15.06 X F51
2023-12-28 10:22:45 C 03 05 09.460 +17 41 18.24 X F51
2023-12-28 10:39:38 C 03 05 08.766 +17 41 21.70 X F51
2024-01-10 03:25:24 C 02 55 17.281 +18 44 29.22 V G96
2024-01-10 03:33:32 C 02 55 17.080 +18 44 30.80 V G96
2024-01-10 03:41:40 C 02 55 16.856 +18 44 32.71 V G96
2024-01-10 03:49:47 C 02 55 16.662 +18 44 34.37 V G96
2024-02-28 05:46:01 C 02 58 03.710 +23 54 06.25 X F51
2024-02-28 05:51:36 C 02 58 03.850 +23 54 07.81 X F51
2024-02-28 05:57:11 C 02 58 03.982 +23 54 09.59 X F51
2024-02-28 06:02:45 C 02 58 04.116 +23 54 11.20 X F51
2024-03-18 05:53:03 C 03 12 14.817 +26 18 50.64 X F52
2024-03-18 06:08:01 C 03 12 15.362 +26 18 55.47 X F52
2024-03-18 06:22:58 C 03 12 15.908 +26 19 00.07 X F52
2024-03-18 06:37:55 C 03 12 16.451 +26 19 05.10 X F52
2024-09-28 12:06:01 C 10 13 28.117 +47 16 49.15 V 703
2024-09-28 12:16:13 C 10 13 29.428 +47 16 47.42 V 703
2024-10-02 14:48:09 C 10 29 41.633 +47 04 33.60 V T08
2024-10-02 14:59:32 C 10 29 43.500 +47 04 31.62 V T08
2024-10-02 15:05:33 C 10 29 44.426 +47 04 31.80 V T08
2024-10-02 15:26:40 C 10 29 48.067 +47 04 27.01 V T08
2024-10-11 11:43:47 C 11 05 33.371 +46 20 44.59 V 703
2024-10-11 11:47:34 C 11 05 34.051 +46 20 42.76 V 703
2024-10-11 11:51:22 C 11 05 34.760 +46 20 41.68 V 703
2024-10-11 11:55:10 C 11 05 35.279 +46 20 40.96 V 703
2024-10-20 14:58:45 C 11 43 16.762 +45 08 19.43 V T05
2024-10-20 15:04:42 C 11 43 17.786 +45 08 17.27 V T05
2024-10-20 15:12:14 C 11 43 19.087 +45 08 14.50 V T05
2024-10-20 15:19:36 C 11 43 20.431 +45 08 11.47 V T05
2024-11-10 12:25:57 C 13 09 08.993 +40 31 17.87 V 703
2024-11-10 12:30:43 C 13 09 09.767 +40 31 14.05 V 703
2024-11-10 12:40:15 C 13 09 11.351 +40 31 08.11 V 703
2024-12-01 15:00:21 C 14 29 25.229 +33 30 26.39 V T05
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)