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1580 Betulia (1950 KA)
Classification: Amor [NEO]          SPK-ID: 2001580
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 262 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4872286286895457 2.2234e-08  
a 2.197340691788654 2.7735e-10 au
q 1.12673339976473 4.8911e-08 au
i 52.08396725661309 9.3198e-06 deg
node 62.2983378310743 2.4855e-06 deg
peri 159.513428466402 6.6634e-06 deg
M 255.594737135041 1.9633e-06 deg
tp 2459545.536003469787
(2021-Nov-27.03600347)
6.5023e-06 TDB
period 1189.719347862607
3.26
2.2525e-07
6.167e-10
d
yr
n .3025923724336825 5.729e-11 deg/d
Q 3.267947983812578 4.1248e-10 au
  Orbit Determination Parameters
   # obs. used (total)      1353  
   # delay obs. used      5  
   # Doppler obs. used      6  
   data-arc span      25873 days (70.84 yr)  
   first obs. used      1950-05-22  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51674  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 12:38:46  

Additional Information
 Earth MOID = .135115 au 
 Jupiter MOID = 1.86117 au 
 T_jup = 3.065 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.7   n/a MPO435711  
magnitude slope G 0.00   n/a PDS3 (MPC 17262) Fit
diameter diameter 5.8 km n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
rotation period rot_per 6.1324 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Austin, R.R.D. (1976) Southern Stars 26, 228-230.]
[Tedesco, E.F.; Drummond, J.; Candy, M.; Birch, P.; et al. (1978) Icarus 35, 344-359.]
[Drummond, J.D.; Wisniewski, W.Z. (1990) Icarus 83, 349-359.]
[Wisniewski, W.Z.; Michalowski, T.M.; Harris, A.W.; McMillan, R.S. (1997) Icarus 126, 395-449; 1995, Lunar & Planetary Sci. XXVI, 1511-1512.]
[Kaasalainen, M.; et al. (2004) Icarus 167, 178-196.]
[Magri, C.; Ostro, S.J.; Scheeres, D.J.; Nolan, M.C.; et al. (2007) Icarus 196, 152-177.]
[Warner, B.D. (2015) Minor Planet Bull. 42, 256-266.]
geometric albedo albedo 0.08   n/a Hazards due to Comets and Asteroids (1994), Ed. T. Gehrels, pp.540-543  
B-V BV 0.656   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=14; phase (min.=8.86, mean=18.58, max.=39.44) deg.
U-B UB 0.249   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=7; phase (min.=8.86, mean=15.33, max.=39.44) deg.
Tholen spectral type spec_T C   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

1580 Betulia (1950 KA)          Discovered 1950-May-22 by Johnson, E. L. at Johannesburg (UO)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1911-May-07 13:13 < 00:01 Earth 0.485626358403372 0.485625717905072 0.485626998901727 28.686958818141 28.6867675568673 2419164.050674655 0.0165542532954611 33.090047410905 10.5691244043804 16.0156455115674 2794478.72288937 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
1924-May-10 05:06 < 00:01 Earth 0.38332303196555 0.383322450181112 0.383323613750075 28.2361560666071 28.2359098917119 2423915.712636620 0.0158830235216558 30.3887210691529 8.84749209262553 18.1276538220766 2657934.52846451 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
1929-Jun-09 14:54 < 00:01 Jupiter 1.84955836580338 1.84955808330636 1.84955864830051 11.3576543442222 11.3172608674364 2425772.120622082 0.101747098270822 36.4663440151269 11.2013784176047 -75.8415744523118 5733718.0151279 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
1937-May-14 10:01 < 00:01 Earth 0.275066735817231 0.275066229885613 0.275067241748975 27.9374286490607 27.9370819197576 2428667.917441019 0.0137307214007522 27.0388228728959 6.37783344189273 21.7259303392367 2719665.01707212 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
1950-May-18 06:48 < 00:01 Earth 0.188184299306252 0.188183895901236 0.188184702711535 27.8499365178095 27.8494281140831 2433419.783413771 0.0112153808710927 23.2428463162256 4.47036275627854 30.6952497878888 3300436.08488134 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
1963-May-19 23:06 < 00:01 Earth 0.157874957820034 0.157874655477525 0.157875260162749 27.9571292998757 27.9565256137105 2438169.462748060 0.00844627660375691 17.7063433091744 4.3505521285117 32.7492215750503 3079765.12990074 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
1965-Mar-17 09:33 < 00:01 Jupiter 1.92262339810282 1.9226230348945 1.92262376131136 11.1486214067518 11.109034524405 2438836.898170415 0.109268799013897 38.328237051521 5.84405839222756 -63.0409787290439 5897277.54662469 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
1976-May-22 19:40 < 00:01 Earth 0.129802691165375 0.129802546665995 0.129802835665118 28.2281252406586 28.2273980434241 2442921.319418616 0.00538798338761914 13.6931982011012 2.55344138038713 59.9431248409762 6364389.39499202 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
1989-May-27 05:12 < 00:01 Earth 0.184957795194787 0.184957770286281 0.184957820103304 28.8707341552554 28.8702351723788 2447673.716958339 0.00414448455765987 12.5443958473332 1.2352394032436 -89.4018241141541 21155716.5100394 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
2002-May-29 13:32 < 00:01 Earth 0.237797072267099 0.237797065768253 0.237797078765945 29.2104932920132 29.2101096997723 2452424.063710958 0.00404504050818159 10.8069139227917 0.32352976278947 -89.9040375134766 42212143.057357 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
2015-Jun-03 08:52 < 00:01 Earth 0.35218555047871 0.352185491075904 0.352185609881696 30.329139425482 30.3288899760488 2457176.869196943 0.0048096588082184 14.3215735581671 1.36157800672705 -79.3664434738407 32743877.1928818 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
2028-Jun-07 13:47 < 00:01 Earth 0.477846999054092 0.477846896016448 0.47784710209198 31.8636818951043 31.8635068988598 2461930.074590584 0.00695900144997554 20.4349864689598 2.57411609218332 -77.3288477143192 24403555.9506553 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
2059-Aug-19 22:11 < 00:01 Jupiter 1.97453493232683 1.97453463770587 1.9745352269478 12.0654761429716 12.0298698336539 2473325.424462967 0.124974795604498 40.8337021499977 14.2263549000146 85.1795462352368 5774822.7531181 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
2090-May-08 15:44 < 00:01 Earth 0.485777062138502 0.485776859786703 0.485777264490357 28.7177731210557 28.7175821242796 2484545.155405174 0.0255211165804413 16.2721104813502 8.44244562866431 66.5912727708193 7809911.75983983 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
2095-May-29 16:59 < 00:01 Jupiter 1.86519091722397 1.86519065689894 1.86519117754899 11.5815580442108 11.5422807353754 2486392.207515483 0.122316942324029 40.8613430418999 11.4984061046538 -81.4063565788577 5645762.52565485 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
2103-May-13 09:00 < 00:01 Earth 0.380083042952904 0.380082823614479 0.380083262291416 28.2327633384473 28.2325150352084 2489296.874732091 0.0247105115484233 17.1606586050611 8.19243611316807 61.2767899054785 6060120.75106538 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
2116-May-15 23:09 < 00:01 Earth 0.287777170344358 0.287776950264473 0.287777390424422 27.8883447976681 27.8880127993644 2494048.464485853 0.0241470587577883 18.8412491695043 7.39096388340271 62.0896049967847 5130487.73916102 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
2129-May-17 21:30 < 00:01 Earth 0.241705212147058 0.241704995014613 0.241705429279846 27.8699507338359 27.869555191274 2498798.396106998 0.0254094034349705 21.1823955208492 6.63740650504306 64.8323936339218 4932516.31260977 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
2131-Mar-07 17:55 < 00:01 Jupiter 1.86705955372474 1.86705921560656 1.86705989184314 11.3253147052041 11.2851858657259 2499457.246679995 0.133138100314576 41.9778009555785 7.98383018809518 -68.8903584811258 5726373.50054821 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
2142-May-21 08:09 < 00:01 Earth 0.174617265683931 0.174617121233192 0.174617410135008 27.9023675057566 27.9018206303731 2503549.839913456 0.0252000452606684 23.197034701065 6.03944378426891 79.9052543853344 4265971.63219216 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
2155-May-25 00:50 < 00:01 Earth 0.150781154552978 0.150780949988882 0.150781359118213 28.1813714418156 28.1807443834012 2508301.534940434 0.0264096443460591 26.8216919594915 5.63240812123525 -71.0755343995568 3823742.17522041 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
2166-Dec-13 09:43 < 00:01 Jupiter 1.97515038794266 1.97514991836107 1.97515085752448 11.2307018419958 11.1924521378198 2512521.904575570 0.160541474080027 44.4797769924853 3.68932435243974 -58.5041784266715 5989878.86313454 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
2168-May-26 02:13 < 00:01 Earth 0.172604272698149 0.172603911622762 0.172604633775253 28.3357236957813 28.3351789038327 2513051.592535211 0.0306155307068883 33.6123897434304 5.26230373135499 -58.7558746151146 4245505.2093929 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
2181-May-29 16:14 < 00:01 Earth 0.237566736268819 0.237566141638133 0.237567330901086 28.8924234831686 28.8920352919818 2517803.176276856 0.0355094228325668 42.9305912960337 5.62232046883132 -46.8386747965656 4576725.14767949 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
2194-Jun-02 22:14 < 00:01 Earth 0.334961547662047 0.334960783087698 0.334962312237862 29.8783882881515 29.8781220549772 2522555.426309070 0.0403299456376205 52.1926524428947 7.09547816064958 -43.5765062916558 4701386.8160702 T 262 CATAB v2.0f-lin.ifort 2021-Apr-12 12:38:59 2021-Apr-12 12:39
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