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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .114068068471233 3.1465e-08  
a 2.13773454589216 8.334e-09 au
q 1.893887295338013 6.7899e-08 au
i 2.629046804549111 6.6127e-06 deg
node 40.77199863807529 6.7485e-05 deg
peri 251.9752143353165 7.5227e-05 deg
M 107.2171599826747 3.4564e-05 deg
tp 2458860.490627568973
(2020-Jan-11.99062757)
0.0001085 TDB
period 1141.639771981919
3.13
6.6761e-06
1.828e-08
d
yr
n .3153358956433602 1.844e-09 deg/d
Q 2.381581796446307 9.2847e-09 au
  Orbit Determination Parameters
   # obs. used (total)      471  
   data-arc span      8154 days (22.32 yr)  
   first obs. used      1998-10-17  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5186  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 20:00:09  

Additional Information
 Earth MOID = .87783 au 
 Jupiter MOID = 2.75661 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 17.04   n/a E2021B55  
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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