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2842 Unsold (1950 OD)
Classification: Main-belt Asteroid          SPK-ID: 2002842
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1009629376380656 6.5795e-08  
a 2.617347959694559 1.2782e-08 au
q 2.353092820862799 1.7712e-07 au
i 11.70049187873465 5.5599e-06 deg
node 310.0403111422219 1.8163e-05 deg
peri 203.0733517728943 2.5456e-05 deg
M 342.0252492344858 1.8624e-05 deg
tp 2459077.723769713385
(2020-Aug-16.22376971)
8.019e-05 TDB
period 1546.644927625709
4.23
1.133e-05
3.102e-08
d
yr
n .2327618922545101 1.7051e-09 deg/d
Q 2.881603098526319 1.4072e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2153  
   data-arc span      32627 days (89.33 yr)  
   first obs. used      1930-12-20  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43372  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:45:58  

Additional Information
 Earth MOID = 1.36893 au 
 Jupiter MOID = 2.15833 au 
 T_jup = 3.370 
[ 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 11.5   n/a MPO502180  
diameter diameter 13.716 km 0.194 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 49.50 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2012) Minor Planet Bull. 39, 181-183.]
geometric albedo albedo 0.149   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

2842 Unsold (1950 OD)          Discovered 1950-Jul-25 by Goethe Link Observatory at Brooklyn
Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1950 OD = 1930 YT = 1933 QX = 1944 BC = 1978 EG4 = 1982 BJ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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