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JPL Small-Body Database Browser
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27901 (1996 RR4)
Classification: Main-belt Asteroid          SPK-ID: 2027901
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08509632247019951 4.464e-08  
a 3.087902418661578 2.0543e-08 au
q 2.825133278686644 1.4016e-07 au
i 4.280490810403131 4.7018e-06 deg
node 159.4412298804015 6.0846e-05 deg
peri 253.0742201940486 6.6921e-05 deg
M 8.216774308824226 2.6648e-05 deg
tp 2458555.263120829122
(2019-Mar-12.76312083)
0.00014666 TDB
period 1981.954948431125
5.43
1.9778e-05
5.415e-08
d
yr
n .1816388411275285 1.8126e-09 deg/d
Q 3.350671558636513 2.2291e-08 au
  Orbit Determination Parameters
   # obs. used (total)      998  
   data-arc span      9806 days (26.85 yr)  
   first obs. used      1993-01-22  
   last obs. used      2019-11-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55995  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 01:09:09  

Additional Information
 Earth MOID = 1.83927 au 
 Jupiter MOID = 1.96381 au 
 T_jup = 3.216 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO279806  
diameter diameter 8.850 km 0.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27901 (1996 RR4)          Discovered 1996-Sep-13 by JPL/GEODSS NEAT at Haleakala
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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