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1052 Belgica (1925 VD)
Classification: Main-belt Asteroid          SPK-ID: 2001052
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1438364185486296 1.5366e-08  
a 2.235572985524506 4.9498e-09 au
q 1.914016173882594 3.4708e-08 au
i 4.697112934772139 7.4025e-07 deg
node 99.57429971506365 5.2412e-06 deg
peri 297.8420635587262 6.4554e-06 deg
M 172.9296409015387 3.0586e-06 deg
tp 2458614.026159583515
(2019-May-10.52615958)
9.7102e-06 TDB
period 1220.904533481028
3.34
4.0548e-06
1.11e-08
d
yr
n .2948633493673519 9.7929e-10 deg/d
Q 2.557129797166419 5.6618e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3103  
   data-arc span      41063 days (112.42 yr)  
   first obs. used      1908-10-03  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40664  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 11:54:25  

Additional Information
 Earth MOID = .925881 au 
 Jupiter MOID = 2.8423 au 
 T_jup = 3.620 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.97   n/a E2021B10  
diameter diameter 9.785 km 0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 2.7097 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Behrend, R. (2013) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Franco, L.; Pravec, P.; Ferrero, A.; Martinez, L. (2013) CBET 3372.]
[Franco, L.; Ferrero, A.; Martinez, L.; Pravec, P.; Padovan, S. (2013) Minor Planet Bull. 40, 151-153.]
[Behrend, R. (2017) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2020) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Franco, L.; Marchini, A.; Saya, L.-F.; Galli, G.; et al. (2020) Minor Planet Bull. 47, 242-246.]
geometric albedo albedo 0.301   0.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
B-V BV 0.900   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=8.24 deg.
U-B UB 0.540   0.020 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=8.24 deg.
Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

1052 Belgica (1925 VD)          Discovered 1925-Nov-15 by Delporte, E. at Uccle
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1925 VD = 1965 UO1 = A908 TB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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