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109987 (2001 SO57)
Classification: Main-belt Asteroid          SPK-ID: 2109987
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1697943140236716 3.6813e-08  
a 2.76298819816032 1.3281e-08 au
q 2.293848512398188 1.0374e-07 au
i 10.69618695627724 4.5496e-06 deg
node 187.3152753225547 1.8718e-05 deg
peri 199.0462861936639 2.2384e-05 deg
M 18.60946899913911 1.182e-05 deg
tp 2458913.784156661208
(2020-Mar-05.28415666)
5.4867e-05 TDB
period 1677.517160936159
4.59
1.2095e-05
3.311e-08
d
yr
n .2146028716624858 1.5473e-09 deg/d
Q 3.232127883922452 1.5536e-08 au
  Orbit Determination Parameters
   # obs. used (total)      649  
   data-arc span      9358 days (25.62 yr)  
   first obs. used      1994-03-18  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5244  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 12:55:25  

Additional Information
 Earth MOID = 1.30011 au 
 Jupiter MOID = 2.22907 au 
 T_jup = 3.295 
[ 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 15.5   n/a MPO449654  
diameter diameter 4.736 km 0.041 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.065   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109987 (2001 SO57)          Discovered 2001-Sep-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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