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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 ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2247608846592596 6.7679e-08  
a 1.974097833707586 8.1109e-09 AU
q 1.530397858199541 1.3132e-07 AU
i 28.77000568002735 1.217e-05 deg
node 71.29052303574758 1.669e-05 deg
peri 69.25844373213988 3.5423e-05 deg
M 130.5701520592644 2.6709e-05 deg
tp 2456633.054575454090
(2013-Dec-06.55457545)
7.4646e-05 JED
period 1013.097945819095
2.77
6.2437e-06
1.709e-08
d
yr
n .355345701257876 2.19e-09 deg/d
Q 2.417797809215631 9.9339e-09 AU
  Orbit Determination Parameters
   # obs. used (total)      565  
   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      .54343  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:11:28  

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 14.2 mag n/a MPO240239  
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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