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109784 (2001 RV87)
Classification: Main-belt Asteroid          SPK-ID: 2109784
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05129169382702687 4.7405e-08  
a 2.47132687544478 1.0721e-08 au
q 2.344568334002963 1.1266e-07 au
i 9.680467336746689 4.3878e-06 deg
node 181.489448870977 1.7629e-05 deg
peri 352.5421616652797 3.3631e-05 deg
M 126.7444073886228 2.8841e-05 deg
tp 2458500.902772733865
(2019-Jan-17.40277273)
0.00011325 TDB
period 1419.036985705718
3.89
9.2338e-06
2.528e-08
d
yr
n .2536931761654994 1.6508e-09 deg/d
Q 2.598085416886597 1.1271e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1085  
   data-arc span      14846 days (40.65 yr)  
   first obs. used      1980-03-16  
   last obs. used      2020-11-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53758  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:33:29  

Additional Information
 Earth MOID = 1.34881 au 
 Jupiter MOID = 2.36148 au 
 T_jup = 3.462 
[ 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 15.4   n/a MPO432619  
diameter diameter 2.598 km 0.421 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.218   0.068 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

109784 (2001 RV87)          Discovered 2001-Sep-11 by LONEOS at Anderson Mesa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2001 RV87 = 1980 FW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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