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5253 (1985 XB)
Classification: Mars-crossing Asteroid          SPK-ID: 2005253
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2247608830665408 6.758e-08  
a 1.974097833876248 8.0988e-09 AU
q 1.530397861474478 1.311e-07 AU
i 28.77000569293179 1.215e-05 deg
node 71.29052298569086 1.6656e-05 deg
peri 69.2584437337986 3.5414e-05 deg
M 130.5701517870163 2.6696e-05 deg
tp 2456633.054576173149
(2013-Dec-06.55457617)
7.4614e-05 JED
period 1013.09794594893
2.77
6.2344e-06
1.707e-08
d
yr
n .3553457012123361 2.1867e-09 deg/d
Q 2.417797806278019 9.9191e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      599  
   data-arc span      13206 days (36.16 yr)  
   first obs. used      1978-05-04  
   last obs. used      2014-06-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52878  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 12:58:30  

Additional Information
 Earth MOID = .681539 AU 
 T_jup = 3.688 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3 mag n/a MPO309190  
rotation period rot_per 2.95 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) Published Reference List:
[Skiff, B.A. (2011) Posting on CALL web site. http://www.minorplanet.info/call.html]
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

5253 (1985 XB)          Discovered 1985-Dec-15 by Singer-Brewster, S. at Palomar (675)
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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