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2581 Radegast (1980 VX)
Classification: Main-belt Asteroid          SPK-ID: 2002581
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0980694209283232 3.8873e-08  
a 2.235760121871891 6.8935e-09 au
q 2.016500421385278 8.6095e-08 au
i 2.493370230033596 4.2322e-06 deg
node 260.5847392723987 8.9564e-05 deg
peri 193.3554248415039 9.1813e-05 deg
M 263.7552995085634 2.1207e-05 deg
tp 2459326.945404940186
(2021-Apr-22.44540494)
7.2306e-05 TDB
period 1221.057836726537
3.34
5.6473e-06
1.546e-08
d
yr
n .2948263294104914 1.3636e-09 deg/d
Q 2.455019822358505 7.5696e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2224  
   data-arc span      33762 days (92.44 yr)  
   first obs. used      1928-02-27  
   last obs. used      2020-08-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46285  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 22:53:54  

Additional Information
 Earth MOID = 1.03332 au 
 Jupiter MOID = 2.67395 au 
 T_jup = 3.631 
[ 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 13.1   n/a MPO492781  
diameter diameter 6.739 km 0.150 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 8.753 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
[Durech, J.; Hanus, J.; Oszkiewsicz, D.; Vanco, R. (2016) Astron. Astrophys. 587, A48.]
[Hess, K.; Bruner, M.; Ditteon, R. (2017) Minor Planet Bull. 44, 3-5.]
geometric albedo albedo 0.245   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2581 Radegast (1980 VX)          Discovered 1980-Nov-11 by Vavrova, Z. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1980 VX = 1928 DV = 1960 YA = 1973 SU5 = 1975 EH5 = 1978 CB = 1979 MQ 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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