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4679 Sybil (1990 TR4)
Classification: Main-belt Asteroid          SPK-ID: 2004679
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04317216245422912 3.2563e-08  
a 3.041779065862245 1.4424e-08 au
q 2.910458885880967 9.7886e-08 au
i 17.37083437687196 3.5348e-06 deg
node 178.7315359900588 1.1948e-05 deg
peri 259.8654588584117 4.3359e-05 deg
M 172.8817594955162 4.2753e-05 deg
tp 2458069.956671072238
(2017-Nov-12.45667107)
0.00022831 TDB
period 1937.715114605151
5.31
1.3783e-05
3.774e-08
d
yr
n .1857858243900613 1.3215e-09 deg/d
Q 3.173099245843524 1.5047e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2427  
   data-arc span      18525 days (50.72 yr)  
   first obs. used      1969-11-14  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46304  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:18:47  

Additional Information
 Earth MOID = 1.97402 au 
 Jupiter MOID = 1.94977 au 
 T_jup = 3.169 
[ show covariance matrix ]

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 12.1   n/a MPO347560  
diameter diameter 11.735 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.203   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4679 Sybil (1990 TR4)          Discovered 1990-Oct-09 by McNaught, R. H. at Siding Spring
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1990 TR4 = 1969 VP1 = 1979 RR = 1979 SU8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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