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2664 Everhart (1934 RR)
Classification: Main-belt Asteroid          SPK-ID: 2002664
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819775677500189 3.8046e-08  
a 2.380675311814487 7.7486e-09 au
q 1.947445808967969 8.9024e-08 au
i 3.258724637998681 3.7088e-06 deg
node 167.6863739661545 6.2573e-05 deg
peri 207.0867550657127 6.3193e-05 deg
M 108.2727054760861 1.0305e-05 deg
tp 2458596.979904808996
(2019-Apr-23.47990481)
3.761e-05 TDB
period 1341.679176021385
3.67
6.5503e-06
1.793e-08
d
yr
n .2683204796153607 1.31e-09 deg/d
Q 2.813904814661005 9.1587e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1985  
   data-arc span      31271 days (85.62 yr)  
   first obs. used      1934-09-07  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51965  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:43:23  

Additional Information
 Earth MOID = .948894 au 
 Jupiter MOID = 2.64888 au 
 T_jup = 3.514 
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Orbital Elements at Epoch 2456474.5 (2013-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1828509161131787 3.815e-08  
q 1.944574695069992 8.9299e-08 au
tp 2455911.913017296619
(2011-Dec-16.41301730)
3.4265e-05 TDB
node 167.7489497671601 6.2502e-05 deg
peri 206.5635732660579 6.3113e-05 deg
i 3.259890858162963 3.7129e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1985  
   data-arc span      31271 days (85.62 yr)  
   first obs. used      1934-09-07  
   last obs. used      2020-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51965  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 01:43:23  

Additional Information
 Jupiter MOID = 2.64888 au 
 T_jup = 3.514 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.455454766033221E-15 -3.398961814616057E-15 2.675952812304882E-13 2.207502730461862E-15 4.388525868136102E-14 -1.417811006977592E-16
q -3.398961814616057E-15 7.974222496381094E-15 -6.249566252807522E-13 -4.842309755728371E-15 -9.97926543876529E-14 3.801339565280303E-16
tp 2.675952812304882E-13 -6.249566252807522E-13 1.174099866959845E-9 -2.776576743788922E-12 3.114891291238328E-10 -4.970223831303309E-13
node 2.207502730461862E-15 -4.842309755728371E-15 -2.776576743788922E-12 3.906514026523891E-9 -3.900576148838024E-9 4.77315670065598E-11
peri 4.388525868136102E-14 -9.97926543876529E-14 3.114891291238328E-10 -3.900576148838024E-9 3.983258671324386E-9 -4.777580995115339E-11
i -1.417811006977592E-16 3.801339565280303E-16 -4.970223831303309E-13 4.77315670065598E-11 -4.777580995115339E-11 1.378585666357923E-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 13.9   n/a MPO412185  
diameter diameter 11.141 km 0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.038   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

2664 Everhart (1934 RR)          Discovered 1934-Sep-07 by Reinmuth, K. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1934 RR = 1967 RT = 1978 PQ3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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