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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1360074708634521 1.3674e-07  
a 3.056938100636748 5.5502e-08 au
q 2.641171680983019 4.1378e-07 au
i 3.735715675866828 8.2717e-06 deg
node 90.04816298613468 0.00016681 deg
peri 265.73023211 0.00017 deg
M 198.892582946697 3.9002e-05 deg
tp 2459474.157940151380
(2021-Sep-16.65794015)
0.00022141 TDB
period 1952.218365902034
5.34
5.3167e-05
1.456e-07
d
yr
n .1844056004634808 5.0222e-09 deg/d
Q 3.472704520290477 6.3051e-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 = 1.63914 au 
 Jupiter MOID = 1.96971 au 
 T_jup = 3.218 
[ 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 16.1   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

[ hide close-approach data ]
Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1933-Feb-26 17:27 00:07 Jupiter 1.98514229481577 1.98514078283609 1.98514380680132 2.50731350358653 2.33093521763914 2427130.226860337 7.04077753417486 352.803996086988 21.9153128694662 -84.4860439772434 968295.985365364 T 9 CATAB v2.0e-lin.ifort 2019-May-30 09:11:16 2019-May-30 09:11
1991-Oct-08 21:43 00:02 Jupiter 1.97701509223136 1.97701405658247 1.97701612787991 2.61943228218268 2.45041943869515 2448538.405071126 2.00461022295878 128.549584393614 21.0275828213802 -82.8140569925852 1211314.25834062 T 9 CATAB v2.0e-lin.ifort 2019-May-30 09:11:16 2019-May-30 09:11
2099-May-09 16:08 00:07 Jupiter 1.9886186324015 1.9886174203035 1.98861984449882 2.5057932291924 2.32962002641711 2487833.172127695 7.33567279488393 377.674558783548 21.107064895551 -88.7696240438561 1015799.158606 T 9 CATAB v2.0e-lin.ifort 2019-May-30 09:11:16 2019-May-30 09:11
2157-Dec-20 14:43 00:12 Jupiter 1.98986459826931 1.98986334714154 1.98986584941528 2.63470388473408 2.467858935191 2509242.112977717 12.3844140324469 537.138177361045 21.5976735233472 -88.7124425624009 1220829.39224959 T 9 CATAB v2.0e-lin.ifort 2019-May-30 09:11:16 2019-May-30 09:11

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