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154986 (2004 VR66)
Classification: Main-belt Asteroid          SPK-ID: 2154986
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2146949342508845 4.9347e-08  
a 2.646646180439995 1.8649e-08 au
q 2.078424652745076 1.3583e-07 au
i 2.686898163573396 5.4716e-06 deg
node 150.9488976257344 0.00010687 deg
peri 175.5083181005096 0.00010751 deg
M 285.2721083948882 1.4421e-05 deg
tp 2459326.954368341937
(2021-Apr-22.45436834)
6.5026e-05 TDB
period 1572.686851973999
4.31
1.6622e-05
4.551e-08
d
yr
n .2289076172717643 2.4194e-09 deg/d
Q 3.214867708134915 2.2653e-08 au
  Orbit Determination Parameters
   # obs. used (total)      387  
   data-arc span      9045 days (24.76 yr)  
   first obs. used      1995-07-24  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62079  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 00:55:36  

Additional Information
 Earth MOID = 1.06678 au 
 Jupiter MOID = 2.13522 au 
 T_jup = 3.358 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456939.5 (2014-Oct-09.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2124033867834581 4.9217e-08  
q 2.087802462947081 1.3537e-07 au
tp 2456177.889217751816
(2012-Sep-07.38921775)
5.3309e-05 TDB
node 150.9474159351564 0.00010696 deg
peri 175.3431337173142 0.00010761 deg
i 2.683296603838745 5.4659e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      387  
   data-arc span      9045 days (24.76 yr)  
   first obs. used      1995-07-24  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62079  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 00:55:36  

Additional Information
 Jupiter MOID = 2.13522 au 
 T_jup = 3.358 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.42235047545196E-15 -6.62602776011898E-15 -8.957682597897168E-15 1.758923949505942E-16 4.100727965293956E-14 -8.704631665143481E-17
q -6.62602776011898E-15 1.83249726298217E-14 9.920906439712439E-14 -1.410044291419915E-15 -7.429859643388537E-14 4.509425951742529E-16
tp -8.957682597897168E-15 9.920906439712439E-14 2.841846840382353E-9 -2.420826673210372E-12 6.530943553265955E-10 8.910575072332589E-13
node 1.758923949505942E-16 -1.410044291419915E-15 -2.420826673210372E-12 1.14396323602991E-8 -1.142726520871236E-8 8.942445120128015E-11
peri 4.100727965293956E-14 -7.429859643388537E-14 6.530943553265955E-10 -1.142726520871236E-8 1.158009496852532E-8 -8.9091960540776E-11
i -8.704631665143481E-17 4.509425951742529E-16 8.910575072332589E-13 8.942445120128015E-11 -8.9091960540776E-11 2.987621512790466E-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 16.0   n/a MPO432990  
diameter diameter 4.134 km 1.028 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.041   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

154986 (2004 VR66)          Discovered 2004-Nov-04 by CSS at Catalina
Reference: 20070402/Numbers.arcLast Updated: 2007-04-04

[ show close-approach data ]
Alternate Designations
 2004 VR66 = 2004 XH87 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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