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332975 (2011 FR4)
Classification: Main-belt Asteroid          SPK-ID: 2332975
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1857371097433817 1.1062e-07  
a 2.96855817425646 4.2511e-08 au
q 2.417186758864975 3.3973e-07 au
i 14.22035793037978 1.4246e-05 deg
node 25.32498287446057 2.461e-05 deg
peri 92.9086408733265 0.00011661 deg
M 331.2095041791436 9.1548e-05 deg
tp 2459149.904409895646
(2020-Oct-27.40440990)
0.00047494 TDB
period 1868.171631954641
5.11
4.013e-05
1.099e-07
d
yr
n .1927017806299399 4.1394e-09 deg/d
Q 3.519929589647945 5.0407e-08 au
  Orbit Determination Parameters
   # obs. used (total)      160  
   data-arc span      6878 days (18.83 yr)  
   first obs. used      2001-03-21  
   last obs. used      2020-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55254  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 21:13:00  

Additional Information
 Earth MOID = 1.48305 au 
 Jupiter MOID = 1.77735 au 
 T_jup = 3.192 
[ 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 16.4   n/a MPO494759  
diameter diameter 3.785 km 0.143 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.148   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

332975 (2011 FR4)          Discovered 2006-Apr-02 by Spacewatch at Kitt Peak
Reference: 20120703/Numbers.arcLast Updated: 2012-07-09

[ show close-approach data ]
Alternate Designations
 2011 FR4 = 2006 GF9 = 2010 BL109 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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