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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06540196278267892 7.3453e-08  
a 3.130033437653191 4.6024e-08 au
q 2.925323107255256 2.3889e-07 au
i 13.74566722157166 7.5764e-06 deg
node 182.6915947567 2.4145e-05 deg
peri 185.0731399247492 5.6486e-05 deg
M 190.8719295555428 5.3695e-05 deg
tp 2459550.743890013282
(2021-Dec-02.24389001)
0.00031326 TDB
period 2022.655372971486
5.54
4.4612e-05
1.221e-07
d
yr
n .1779838546944967 3.9256e-09 deg/d
Q 3.334743768051125 4.9034e-08 au
  Orbit Determination Parameters
   # obs. used (total)      217  
   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      .54353  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 09:03:41  

Additional Information
 Earth MOID = 1.92302 au 
 Jupiter MOID = 2.03098 au 
 T_jup = 3.166 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456998.5 (2014-Dec-07.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06572147659328426 7.3211e-08  
q 2.925529939577442 2.3811e-07 au
tp 2457533.522804344740
(2016-May-25.02280434)
0.00029083 TDB
node 182.7075092628563 2.4145e-05 deg
peri 186.1112224938952 5.6532e-05 deg
i 13.74412758428774 7.5759e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      217  
   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      .54353  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 09:03:41  

Additional Information
 Jupiter MOID = 2.03098 au 
 T_jup = 3.166 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.359843038232489E-15 -1.71478287718909E-14 -6.945336100090715E-12 -2.803384649647535E-14 -1.022671927635505E-12 -9.221241779227448E-15
q -1.71478287718909E-14 5.669842037579424E-14 2.752996202232998E-11 8.888662871231167E-14 4.138100778233201E-12 3.56580443661744E-14
tp -6.945336100090715E-12 2.752996202232998E-11 8.458032549871797E-8 5.055527757973232E-11 1.486980280768017E-8 6.424001073000207E-11
node -2.803384649647535E-14 8.888662871231167E-14 5.055527757973232E-11 5.82963286471791E-10 -5.578096938820553E-10 -5.900292545316971E-11
peri -1.022671927635505E-12 4.138100778233201E-12 1.486980280768017E-8 -5.578096938820553E-10 3.195817577339561E-9 6.850786129397808E-11
i -9.221241779227448E-15 3.56580443661744E-14 6.424001073000207E-11 -5.900292545316971E-11 6.850786129397808E-11 5.739425942207108E-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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