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30800 (1989 ST)
Classification: Mars-crossing Asteroid          SPK-ID: 2030800
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2747963088454896 7.4289e-08  
a 2.274003212430725 1.4934e-08 AU
q 1.649115523351977 1.6383e-07 AU
i 4.49371082962934 6.1697e-06 deg
node 292.4938422853235 7.9464e-05 deg
peri 22.81000699613671 8.0104e-05 deg
M 158.8045834996862 1.3374e-05 deg
tp 2456447.983095477994
(2013-Jun-04.48309548)
4.3084e-05 JED
period 1252.521062330138
3.43
1.2338e-05
3.378e-08
d
yr
n .2874203163739787 2.8313e-09 deg/d
Q 2.898890901509474 1.9038e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      856  
   data-arc span      21317 days (58.36 yr)  
   first obs. used      1955-10-23  
   last obs. used      2014-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52969  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 02:41:02  

Additional Information
 Earth MOID = .637346 AU 
 T_jup = 3.556 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5 mag n/a MPO270317  

30800 (1989 ST)          Discovered 1989-Sep-29 by Ueda, S., Kaneda, H. at Kushiro (399)
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1989 ST = 1999 NV12 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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