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1004 Belopolskya (A923 RR)
Classification: Outer Main-belt Asteroid          SPK-ID: 2001004
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08811671482056586 3.591e-08  
a 3.401707870351529 1.6214e-08 au
q 3.101960548036889 1.2316e-07 au
i 2.979318906656725 4.0235e-06 deg
node 153.5183531934294 6.5777e-05 deg
peri 214.7020118625309 6.8902e-05 deg
M 151.4056522351789 2.194e-05 deg
tp 2458036.707512515703
(2017-Oct-10.20751252)
0.00013734 TDB
period 2291.627098276388
6.27
1.6385e-05
4.486e-08
d
yr
n .157093621501844 1.1232e-09 deg/d
Q 3.701455192666169 1.7643e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3332  
   data-arc span      35359 days (96.81 yr)  
   first obs. used      1923-09-13  
   last obs. used      2020-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43065  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:23:30  

Additional Information
 Earth MOID = 2.10137 au 
 Jupiter MOID = 1.75724 au 
 T_jup = 3.138 
[ 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: 9
diameter diameter 71.60 km 2.1 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
rotation period rot_per 9.038 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Carreno, A.; Arce, E.; Fornas, G.; Mas, V. (2019) Minor Planet Bull. 46, 200-203.]
geometric albedo albedo 0.0348   0.002 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 9
B-V BV 0.720   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=6.45 deg.
U-B UB 0.120   0.045 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=6.45 deg.
Tholen spectral type spec_T PC   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices; used ground-based radiometric albedo

1004 Belopolskya (A923 RR)          Discovered 1923-Sep-05 by Belyavskij, S. at Simeis
Independent discovery Sept. 13 by K. Reinmuth, Heidelberg, was announced first.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A923 RR = 1936 WB = 1937 YB = 1938 AA = 1963 DC = 1974 WK = 2004 SU12 = A917 TA 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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