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13072 (1991 RS8)
Classification: Main-belt Asteroid          SPK-ID: 2013072
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1056739073873134 3.8747e-08  
a 2.337120780842314 8.0297e-09 au
q 2.090148095894618 9.1319e-08 au
i 8.285623135128082 5.0438e-06 deg
node 352.2426440813615 2.5965e-05 deg
peri 56.15013477331393 3.4219e-05 deg
M 333.8758042948575 2.291e-05 deg
tp 2459095.202313846690
(2020-Sep-02.70231385)
8.3197e-05 TDB
period 1305.028999537674
3.57
6.7256e-06
1.841e-08
d
yr
n .2758559389312692 1.4216e-09 deg/d
Q 2.58409346579001 8.8782e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1733  
   data-arc span      13784 days (37.74 yr)  
   first obs. used      1982-01-26  
   last obs. used      2019-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44936  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 23:00:59  

Additional Information
 Earth MOID = 1.11121 au 
 Jupiter MOID = 2.74497 au 
 T_jup = 3.545 
[ 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 14.0   n/a MPO337369  
diameter diameter 4.957 km 0.074 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.144   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13072 (1991 RS8)          Discovered 1991-Sep-11 by Holt, H. E. at Palomar
Reference: 20000124/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1991 RS8 = 1982 BR7 = 1984 WZ4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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