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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05129167689223627 5.049e-08  
a 2.471326880026956 1.1786e-08 au
q 2.344568380201515 1.2229e-07 au
i 9.680462377831995 5.3683e-06 deg
node 181.489430271116 2.0594e-05 deg
peri 352.5421543565853 4.431e-05 deg
M 126.7444300209363 3.7377e-05 deg
tp 2458500.902682133021
(2019-Jan-17.40268213)
0.00014795 TDB
period 1419.03698965235
3.89
1.0151e-05
2.779e-08
d
yr
n .2536931754599269 1.8149e-09 deg/d
Q 2.598085379852397 1.2391e-08 au
  Orbit Determination Parameters
   # obs. used (total)      928  
   data-arc span      14351 days (39.29 yr)  
   first obs. used      1980-03-16  
   last obs. used      2019-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55626  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:33:00  

Additional Information
 Earth MOID = 1.34881 au 
 Jupiter MOID = 2.36148 au 
 T_jup = 3.462 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457051.5 (2015-Jan-29.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05115831823466784 5.0233e-08  
q 2.344350098384353 1.2141e-07 au
tp 2457077.668865532768
(2015-Feb-24.16886553)
0.00015182 TDB
node 181.5737640282098 2.0595e-05 deg
peri 351.2168565462133 4.4783e-05 deg
i 9.680002253660199 5.369e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      928  
   data-arc span      14351 days (39.29 yr)  
   first obs. used      1980-03-16  
   last obs. used      2019-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55626  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 03:33:00  

Additional Information
 Jupiter MOID = 2.36148 au 
 T_jup = 3.462 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.523378210821799E-15 -6.075629148509978E-15 1.817989592884246E-12 5.604327214941835E-15 4.728521822677216E-13 3.26403614996769E-15
q -6.075629148509978E-15 1.473922526796661E-14 -4.836382064075489E-12 -1.334953071121749E-14 -1.259097726656268E-12 -7.638499403402336E-15
tp 1.817989592884246E-12 -4.836382064075489E-12 2.304927809153528E-8 -9.949664854593041E-12 6.046316306296923E-9 4.40445596994757E-12
node 5.604327214941835E-15 -1.334953071121749E-14 -9.949664854593041E-12 4.241712275968753E-10 -4.200626572381707E-10 2.01410348815668E-11
peri 4.728521822677216E-13 -1.259097726656268E-12 6.046316306296923E-9 -4.200626572381707E-10 2.005522779728909E-9 -1.865500597191066E-11
i 3.26403614996769E-15 -7.638499403402336E-15 4.40445596994757E-12 2.01410348815668E-11 -1.865500597191066E-11 2.88265084946733E-11

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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