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91946 (1999 VM65)
Classification: Main-belt Asteroid          SPK-ID: 2091946
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2062407352235061 4.7028e-08  
a 3.128108913379387 2.706e-08 au
q 2.482965431224819 1.5353e-07 au
i 17.1794160813242 5.9816e-06 deg
node 49.40544318578161 1.5925e-05 deg
peri 236.2138527552937 2.0864e-05 deg
M 359.9590448037328 1.4186e-05 deg
tp 2459000.729894052665
(2020-May-31.22989405)
7.9634e-05 TDB
period 2020.790192763543
5.53
2.6221e-05
7.179e-08
d
yr
n .1781481329873637 2.3116e-09 deg/d
Q 3.773252395533955 3.2641e-08 au
  Orbit Determination Parameters
   # obs. used (total)      907  
   data-arc span      7558 days (20.69 yr)  
   first obs. used      1999-10-08  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52903  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:42:16  

Additional Information
 Earth MOID = 1.51209 au 
 Jupiter MOID = 1.54038 au 
 T_jup = 3.113 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457146.5 (2015-May-04.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2045933544010222 4.7093e-08  
q 2.487849580476111 1.5329e-07 au
tp 2456983.309461874151
(2014-Nov-21.80946187)
7.5032e-05 TDB
node 49.42470200965283 1.5914e-05 deg
peri 236.5169208861661 2.0932e-05 deg
i 17.18350469405333 5.9823e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      907  
   data-arc span      7558 days (20.69 yr)  
   first obs. used      1999-10-08  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52903  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:42:16  

Additional Information
 Jupiter MOID = 1.54038 au 
 T_jup = 3.113 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.217753586126661E-15 -7.150946405509527E-15 -7.133167226117713E-13 -5.951754641562676E-16 -5.951116955138174E-14 8.75597069178678E-16
q -7.150946405509527E-15 2.349748823338697E-14 2.291289663822566E-12 4.738876665502585E-15 1.937701077524562E-13 -1.99063701073851E-15
tp -7.133167226117713E-13 2.291289663822566E-12 5.629827443553523E-9 -1.569862102967639E-12 1.037145899547516E-9 3.447857451225006E-12
node -5.951754641562676E-16 4.738876665502585E-15 -1.569862102967639E-12 2.532645802169402E-10 -2.418424806572557E-10 -2.006688837693236E-12
peri -5.951116955138174E-14 1.937701077524562E-13 1.037145899547516E-9 -2.418424806572557E-10 4.381290133554344E-10 2.696967394782644E-12
i 8.75597069178678E-16 -1.99063701073851E-15 3.447857451225006E-12 -2.006688837693236E-12 2.696967394782644E-12 3.578770021764222E-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 14.0   n/a MPO351493  
diameter diameter 7.703 km 1.360 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.044   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

91946 (1999 VM65)          Discovered 1999-Nov-04 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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