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JPL Small-Body Database Browser
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943 Begonia (A920 UA)
Classification: Main-belt Asteroid          SPK-ID: 2000943
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2133332477185962 3.3676e-08  
a 3.116554048463509 1.3205e-08 au
q 2.451689451614249 1.0688e-07 au
i 12.10832650329018 3.9287e-06 deg
node 113.7677173744819 2.1474e-05 deg
peri 4.131386534370086 2.3947e-05 deg
M 310.5791838985738 1.2463e-05 deg
tp 2459276.378485625127
(2021-Mar-02.87848563)
7.054e-05 TDB
period 2009.603698595731
5.50
1.2772e-05
3.497e-08
d
yr
n .1791397976882509 1.1385e-09 deg/d
Q 3.781418645312769 1.6022e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2599  
   data-arc span      36264 days (99.29 yr)  
   first obs. used      1920-10-21  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41219  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 15:41:00  

Additional Information
 Earth MOID = 1.4681 au 
 Jupiter MOID = 1.33502 au 
 T_jup = 3.148 
[ 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 9.8   n/a MPO502162 IRAS observations used: 11
diameter diameter 70.572 km 2.446 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 15.66 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2016) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
geometric albedo albedo 0.044   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.783   0.033 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=7.48 deg.
Tholen spectral type spec_T ST   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices

943 Begonia (A920 UA)          Discovered 1920-Oct-20 by Reinmuth, K. at Heidelberg
Oct. 12 observation by A. Schwassmann, Bergedorf, was apparently a prediscovery.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A920 UA = 1944 DM = 1947 RC = 1977 FU 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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