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JPL Small-Body Database Browser
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160158 (2001 RS121)
Classification: Main-belt Asteroid          SPK-ID: 2160158
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .114168464150671 5.5978e-08  
a 2.13771980716312 1.299e-08 au
q 1.893659619994838 1.2728e-07 au
i 2.629091196348312 6.953e-06 deg
node 40.77248605068404 8.4499e-05 deg
peri 251.9569955316349 9.2726e-05 deg
M 44.15558004044029 4.3653e-05 deg
tp 2458860.474319442739
(2020-Jan-11.97431944)
0.00013748 TDB
period 1141.627965354461
3.13
1.0406e-05
2.849e-08
d
yr
n .315339156822621 2.8743e-09 deg/d
Q 2.381779994331402 1.4473e-08 au
  Orbit Determination Parameters
   # obs. used (total)      374  
   data-arc span      7507 days (20.55 yr)  
   first obs. used      1998-10-17  
   last obs. used      2019-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52564  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:33:01  

Additional Information
 Earth MOID = .879553 au 
 Jupiter MOID = 2.75741 au 
 T_jup = 3.706 
[ 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 17.0   n/a MPO379513  
diameter diameter 2.036 km 0.246 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.074   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

160158 (2001 RS121)          Discovered 2001-Sep-12 by LINEAR at Socorro
Reference: 20070730/Numbers.arcLast Updated: 2007-08-06
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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