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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1357639793930925 7.6037e-08  
a 3.059326300002487 4.8818e-08 au
q 2.643979987252204 2.5676e-07 au
i 3.735415527562221 8.2499e-06 deg
node 90.05037376561208 0.00011446 deg
peri 265.3815115607226 0.00011882 deg
M 272.9991958258102 3.3094e-05 deg
tp 2459472.843445650283
(2021-Sep-15.34344565)
0.00018234 TDB
period 1954.50653644128
5.35
4.6783e-05
1.281e-07
d
yr
n .1841897140213609 4.4087e-09 deg/d
Q 3.474672612752771 5.5446e-08 au
  Orbit Determination Parameters
   # obs. used (total)      140  
   data-arc span      5438 days (14.89 yr)  
   first obs. used      2005-08-31  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65743  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:47:30  

Additional Information
 Earth MOID = 1.64274 au 
 Jupiter MOID = 1.97027 au 
 T_jup = 3.217 
[ 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 17:26 00:06 Jupiter 1.98514205284358 1.98514138075366 1.98514272493598 2.50731275754952 2.33093439283819 2427130.226217894 6.14016023309009 314.936538852631 10.9877715563318 -86.0006268084386 1991734.52370455 T 10 CATAB v2.0f-lin.ifort 2020-Nov-11 18:47:30 2020-Nov-11 18:47
1991-Oct-08 21:43 00:02 Jupiter 1.97701495656282 1.97701436114154 1.97701555198388 2.61943190097257 2.45041901919369 2448538.404857369 1.79255606235196 112.427183748025 12.5212794611123 -85.9762762680662 1979680.86975135 T 10 CATAB v2.0f-lin.ifort 2020-Nov-11 18:47:30 2020-Nov-11 18:47
2099-May-09 16:09 00:06 Jupiter 1.98861849786294 1.98861770762859 1.98861928810418 2.50579246613676 2.32961919328723 2487833.172732567 6.13773980113634 310.043402458674 11.1904237341821 -86.9092108070446 1985493.03003302 T 10 CATAB v2.0f-lin.ifort 2020-Nov-11 18:47:30 2020-Nov-11 18:47
2157-Dec-20 14:44 00:11 Jupiter 1.98986440426368 1.98986378756149 1.98986502097051 2.6347024004625 2.46785733375521 2509242.114019337 10.4993463013125 456.693389820756 13.357096877326 -87.6898914677181 2205331.85392408 T 10 CATAB v2.0f-lin.ifort 2020-Nov-11 18:47:30 2020-Nov-11 18:47

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