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
2025-09-16 06:46:21 B 03 46 01.286 -72 07 49.19 q X22
2025-09-16 06:50:59 B 03 46 00.583 -72 07 50.66 q X22
2025-09-16 07:27:49 C 03 45 54.986 -72 08 04.20 V W68
2025-09-16 08:33:12 C 03 45 44.854 -72 08 26.56 V W68
2025-09-16 08:35:48 C 03 45 44.498 -72 08 27.67 V W68
2025-09-16 08:39:46 C 03 45 43.903 -72 08 28.72 V W68
2025-09-16 09:13:41 C 03 45 38.590 -72 08 39.55 V W68
2025-09-17 06:24:32 C 03 42 24.797 -72 15 41.58 V W68
2025-09-17 06:53:42 C 03 42 20.088 -72 15 51.48 V W68
2025-09-17 06:58:21 C 03 42 19.534 -72 15 52.78 V W68
2025-09-17 07:04:21 C 03 42 18.528 -72 15 54.50 V W68
2025-09-17 07:10:18 C 03 42 17.405 -72 15 56.88 V W68
2025-09-17 07:20:44 C 03 42 15.674 -72 16 00.34 V W68
2025-09-18 01:25:49 C 03 39 24.708 -72 21 39.17 V M22
2025-09-18 01:29:46 C 03 39 24.048 -72 21 40.36 V M22
2025-09-18 01:36:54 C 03 39 22.994 -72 21 42.34 V M22
2025-09-18 02:12:21 C 03 39 17.129 -72 21 53.64 V M22
2025-09-22 08:29:30 C 03 21 52.450 -72 47 19.68 V W68
2025-09-22 08:34:07 C 03 21 51.626 -72 47 20.72 V W68
2025-09-22 08:57:33 C 03 21 47.110 -72 47 25.94 V W68
2025-09-22 09:06:44 C 03 21 45.502 -72 47 27.13 V W68
2025-09-23 07:01:00 C 03 17 47.030 -72 51 20.16 V W68
2025-09-23 07:03:37 C 03 17 46.514 -72 51 21.06 V W68
2025-09-23 07:08:16 C 03 17 45.703 -72 51 21.10 V W68
2025-09-23 07:35:09 C 03 17 40.567 -72 51 25.63 V W68
2025-09-25 05:32:43 C 03 09 04.932 -72 57 35.75 V W68
2025-09-25 05:36:07 C 03 09 04.471 -72 57 36.07 V W68
2025-09-25 06:02:25 C 03 08 59.162 -72 57 39.02 V W68
2025-09-25 06:09:46 C 03 08 57.756 -72 57 39.74 V W68
2025-09-29 05:16:14 C 02 50 23.090 -73 01 30.47 V W68
2025-09-29 05:20:11 C 02 50 22.320 -73 01 30.76 V W68
2025-09-29 05:28:15 C 02 50 20.618 -73 01 30.58 V W68
2025-09-29 05:42:13 C 02 50 17.885 -73 01 30.32 V W68
2025-09-30 01:15:33 C 02 46 23.242 -73 00 43.96 V M22
2025-09-30 01:16:50 C 02 46 22.990 -73 00 44.42 V M22
2025-09-30 01:19:27 C 02 46 22.433 -73 00 44.35 V M22
2025-09-30 01:57:54 C 02 46 14.515 -73 00 41.83 V M22
2025-09-30 02:00:31 C 02 46 14.093 -73 00 41.83 V M22
2025-09-30 02:41:47 C 02 46 05.688 -73 00 38.77 V M22
2025-10-01 06:08:01 C 02 40 36.266 -72 58 36.66 V W68
2025-10-01 06:10:42 C 02 40 35.664 -72 58 36.12 V W68
2025-10-01 06:14:44 C 02 40 34.802 -72 58 35.83 V W68
2025-10-01 06:16:43 C 02 40 34.522 -72 58 36.19 V W68
2025-10-02 05:11:05 C 02 35 58.798 -72 56 03.37 V W68
2025-10-02 05:13:03 C 02 35 58.354 -72 56 02.69 V W68
2025-10-02 05:49:31 C 02 35 50.813 -72 55 58.73 V W68
2025-10-02 05:54:06 C 02 35 50.033 -72 55 57.76 V W68
2025-10-02 23:04:26 C 02 32 23.318 -72 53 33.47 V M22
2025-10-02 23:09:42 C 02 32 22.322 -72 53 31.81 V M22
2025-10-02 23:14:29 C 02 32 21.214 -72 53 30.52 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)