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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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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05129168582006168 4.8595e-08  
a 2.471326877517652 1.1205e-08 au
q 2.344568355757342 1.1645e-07 au
i 9.680465079266384 4.8259e-06 deg
node 181.4894383359034 1.9583e-05 deg
peri 352.542160479359 3.8886e-05 deg
M 126.7444175959814 3.279e-05 deg
tp 2458500.902731870240
(2019-Jan-17.40273187)
0.00012934 TDB
period 1419.036987491084
3.89
9.6506e-06
2.642e-08
d
yr
n .2536931758463145 1.7253e-09 deg/d
Q 2.598085399277961 1.1779e-08 au
  Orbit Determination Parameters
   # obs. used (total)      969  
   data-arc span      14746 days (40.37 yr)  
   first obs. used      1980-03-16  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54859  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 09:35:01  

Additional Information
 Earth MOID = 1.34881 au 
 Jupiter MOID = 2.36148 au 
 T_jup = 3.462 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457260.5 (2015-Aug-26.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05087075271153284 4.8476e-08  
q 2.344369621167675 1.1594e-07 au
tp 2457077.494268138580
(2015-Feb-23.99426814)
0.00013176 TDB
node 181.5743149885812 1.9582e-05 deg
peri 351.1699738082303 3.932e-05 deg
i 9.681372306343063 4.8268e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      969  
   data-arc span      14746 days (40.37 yr)  
   first obs. used      1980-03-16  
   last obs. used      2020-07-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54859  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 09:35:01  

Additional Information
 Jupiter MOID = 2.36148 au 
 T_jup = 3.462 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.349903545439588E-15 -5.600653472215326E-15 8.137479845534425E-13 1.097227230233468E-14 1.946865633016084E-13 5.10384613316239E-15
q -5.600653472215326E-15 1.34415943980701E-14 -2.115271505727746E-12 -2.595145307369006E-14 -5.070312308908224E-13 -1.204370234163382E-14
tp 8.137479845534425E-13 -2.115271505727746E-12 1.73594085503008E-8 -1.112887942832709E-11 4.500619552468121E-9 3.385487660484815E-12
node 1.097227230233468E-14 -2.595145307369006E-14 -1.112887942832709E-11 3.834709208114932E-10 -3.80243878397784E-10 5.199500276174826E-12
peri 1.946865633016084E-13 -5.070312308908224E-13 4.500619552468121E-9 -3.80243878397784E-10 1.546040028291874E-9 -4.198495619151988E-12
i 5.10384613316239E-15 -1.204370234163382E-14 3.385487660484815E-12 5.199500276174826E-12 -4.198495619151988E-12 2.329832263833798E-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

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