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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2751255973809593 6.8975e-08  
a 2.272726618757851 1.1488e-08 AU
q 1.64744135008849 1.5443e-07 AU
i 4.495616181974236 6.2883e-06 deg
node 292.4928999218567 8.0794e-05 deg
peri 22.68524369347061 8.1412e-05 deg
M 101.4612767965184 1.2056e-05 deg
tp 2456447.790589440598
(2013-Jun-04.29058944)
4.0577e-05 JED
period 1251.466488599734
3.43
9.4886e-06
2.598e-08
d
yr
n .2876625169586474 2.181e-09 deg/d
Q 2.898011887427213 1.4648e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      858  
   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      .56176  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 11:28:51  

Additional Information
 Earth MOID = .633736 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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