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48845 (1998 DW8)
Classification: Main-belt Asteroid          SPK-ID: 2048845
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .154089694553961 4.0151e-08  
a 3.167913256768156 2.2043e-08 au
q 2.679770470659307 1.2947e-07 au
i 6.532048011026008 4.6888e-06 deg
node 142.2415539812785 3.8039e-05 deg
peri 356.4315813242953 4.0888e-05 deg
M 284.6960039416347 1.6814e-05 deg
tp 2459031.298191061747
(2020-Jun-30.79819106)
9.867e-05 TDB
period 2059.483651598336
5.64
2.1496e-05
5.885e-08
d
yr
n .1748010962459494 1.8245e-09 deg/d
Q 3.656056042877005 2.544e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1077  
   data-arc span      8430 days (23.08 yr)  
   first obs. used      1996-11-03  
   last obs. used      2019-12-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58359  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 04:15:16  

Additional Information
 Earth MOID = 1.69363 au 
 Jupiter MOID = 1.37396 au 
 T_jup = 3.174 
[ 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 14.0   n/a MPO417155  
diameter diameter 7.050 km 0.243 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.072   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

48845 (1998 DW8)          Discovered 1998-Feb-23 by Spacewatch at Kitt Peak
Reference: 20021120/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 DW8 = 1999 JP125 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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