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390996 (2005 ST89)
Classification: Main-belt Asteroid          SPK-ID: 2390996
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2381754971707621 1.0723e-07  
a 3.036527639507229 5.2043e-08 au
q 2.313301159294834 3.5288e-07 au
i 1.357109146513721 9.2758e-06 deg
node 325.6744593875565 0.00024265 deg
peri 343.6214905042503 0.00024344 deg
M 251.3093865006116 1.3703e-05 deg
tp 2459184.017417744533
(2020-Nov-30.51741774)
7.9237e-05 TDB
period 1932.699279402024
5.29
4.9687e-05
1.36e-07
d
yr
n .1862679848007104 4.7887e-09 deg/d
Q 3.759754119719624 6.4438e-08 au
  Orbit Determination Parameters
   # obs. used (total)      178  
   data-arc span      5846 days (16.01 yr)  
   first obs. used      2003-04-01  
   last obs. used      2019-04-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48754  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:44:30  

Additional Information
 Earth MOID = 1.29797 au 
 Jupiter MOID = 1.52162 au 
 T_jup = 3.197 
[ 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 16.5   n/a MPO434443  
diameter diameter 2.612 km 0.389 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

390996 (2005 ST89)          Discovered 2005-Sep-24 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

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