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295231 (2008 GY12)
Classification: Main-belt Asteroid          SPK-ID: 2295231
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06480955929929655 7.3801e-08  
a 3.133389145069127 4.5309e-08 au
q 2.930315575463998 2.406e-07 au
i 13.73903375957011 7.541e-06 deg
node 182.6474065383992 2.3808e-05 deg
peri 184.2725426581747 5.5867e-05 deg
M 262.8815500261189 5.4093e-05 deg
tp 2459547.036498843731
(2021-Nov-28.53649884)
0.00031134 TDB
period 2025.908976478285
5.55
4.3943e-05
1.203e-07
d
yr
n .1776980131781644 3.8543e-09 deg/d
Q 3.336462714674257 4.8246e-08 au
  Orbit Determination Parameters
   # obs. used (total)      224  
   data-arc span      7182 days (19.66 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56507  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:38:16  

Additional Information
 Earth MOID = 1.92864 au 
 Jupiter MOID = 2.02459 au 
 T_jup = 3.165 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457017.5 (2014-Dec-26.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06571465141263551 7.3198e-08  
q 2.925589372735494 2.3794e-07 au
tp 2457533.474233207548
(2016-May-24.97423321)
0.00028786 TDB
node 182.7068904733937 2.3804e-05 deg
peri 186.1007913627132 5.581e-05 deg
i 13.74411360623093 7.5417e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      224  
   data-arc span      7182 days (19.66 yr)  
   first obs. used      1999-09-07  
   last obs. used      2019-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56507  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:38:16  

Additional Information
 Jupiter MOID = 2.02459 au 
 T_jup = 3.165 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.358000431464566E-15 -1.713564150741879E-14 -6.92082123665146E-12 -2.840905168101427E-14 -1.018255907606625E-12 -9.112437946755724E-15
q -1.713564150741879E-14 5.661592089056117E-14 2.745654012460824E-11 9.008126212702763E-14 4.127489568507541E-12 3.528700921582174E-14
tp -6.92082123665146E-12 2.745654012460824E-11 8.286338218506311E-8 5.106051312670197E-11 1.453472967118629E-8 6.286608008495058E-11
node -2.840905168101427E-14 9.008126212702763E-14 5.106051312670197E-11 5.666287456148318E-10 -5.418719021555581E-10 -5.611252517775951E-11
peri -1.018255907606625E-12 4.127489568507541E-12 1.453472967118629E-8 -5.418719021555581E-10 3.114790895505094E-9 6.54414332889094E-11
i -9.112437946755724E-15 3.528700921582174E-14 6.286608008495058E-11 -5.611252517775951E-11 6.54414332889094E-11 5.687721528411031E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO437320  
diameter diameter 4.598 km 0.224 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

295231 (2008 GY12)          Discovered 2008-Apr-03 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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