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JPL Small-Body Database Browser
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312422 (2008 GR48)
Classification: Main-belt Asteroid          SPK-ID: 2312422
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .135763930936683 1.3693e-07  
a 3.059326280553337 5.4309e-08 au
q 2.643980118687514 4.1639e-07 au
i 3.735416673935736 8.2698e-06 deg
node 90.0503381556088 0.00016676 deg
peri 265.38154184 0.00017001 deg
M 272.9992026778589 4.0108e-05 deg
tp 2459472.843403944978
(2021-Sep-15.34340395)
0.00022309 TDB
period 1954.506517803112
5.35
5.2045e-05
1.425e-07
d
yr
n .1841897157777935 4.9046e-09 deg/d
Q 3.47467244241916 6.1683e-08 au
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      4997 days (13.68 yr)  
   first obs. used      2005-08-31  
   last obs. used      2019-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69572  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 09:11:14  

Additional Information
 Earth MOID = 1.64274 au 
 Jupiter MOID = 1.97027 au 
 T_jup = 3.217 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457056.5 (2015-Feb-03.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1359149622276316 1.3695e-07  
q 2.642440067030386 4.1479e-07 au
tp 2457524.094331003712
(2016-May-15.59433100)
0.00020128 TDB
node 90.05632468100383 0.00016679 deg
peri 266.22971341538 0.00016994 deg
i 3.735597784733448 8.2712e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      123  
   data-arc span      4997 days (13.68 yr)  
   first obs. used      2005-08-31  
   last obs. used      2019-05-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .69572  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 09:11:14  

Additional Information
 Jupiter MOID = 1.97027 au 
 T_jup = 3.217 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.875439588968029E-14 -5.642873001286861E-14 1.515238830812536E-11 -1.798011874780244E-13 2.041531570774638E-12 9.320052741030922E-16
q -5.642873001286861E-14 1.720548283597272E-13 -4.409285205132725E-11 5.425461270745565E-13 -6.000372897927888E-12 -1.817227918293309E-15
tp 1.515238830812536E-11 -4.409285205132725E-11 4.051217157553838E-8 -1.419011755975575E-10 6.72645224256101E-9 -5.995130909689353E-12
node -1.798011874780244E-13 5.425461270745565E-13 -1.419011755975575E-10 2.781950560336924E-8 -2.777645272582295E-8 -3.093090107904836E-10
peri 2.041531570774638E-12 -6.000372897927888E-12 6.72645224256101E-9 -2.777645272582295E-8 2.888086509132771E-8 3.074637862666344E-10
i 9.320052741030922E-16 -1.817227918293309E-15 -5.995130909689353E-12 -3.093090107904836E-10 3.074637862666344E-10 6.841336132994956E-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 16.1   n/a MPO397106  
diameter diameter 4.022 km 0.156 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

312422 (2008 GR48)          Discovered 2008-Apr-05 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2008 GR48 = 2005 SU272 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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