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JPL Small-Body Database Browser
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172508 (2003 SU212)
Classification: Main-belt Asteroid          SPK-ID: 2172508
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2361713549057481 5.0029e-08  
a 2.443443226981903 1.5583e-08 au
q 1.866371929430314 1.1842e-07 au
i 8.982667846396684 6.0022e-06 deg
node 80.26165155314924 2.7794e-05 deg
peri 333.9179245132113 3.0791e-05 deg
M 90.39025226864146 1.5298e-05 deg
tp 2458650.215513456323
(2019-Jun-15.71551346)
5.6816e-05 TDB
period 1395.088651605319
3.82
1.3346e-05
3.654e-08
d
yr
n .258048117290432 2.4685e-09 deg/d
Q 3.020514524533493 1.9263e-08 au
  Orbit Determination Parameters
   # obs. used (total)      453  
   data-arc span      7958 days (21.79 yr)  
   first obs. used      1998-04-22  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55087  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 16:50:27  

Additional Information
 Earth MOID = .882914 au 
 Jupiter MOID = 2.3487 au 
 T_jup = 3.445 
[ 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 16.3   n/a MPO454182  
diameter diameter 2.475 km 0.605 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  
geometric albedo albedo 0.087   0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)  

172508 (2003 SU212)          Discovered 2003-Sep-25 by NEAT at Haleakala
Reference: 20071224/Numbers.arcLast Updated: 2007-12-22

[ show close-approach data ]
Alternate Designations
 2003 SU212 = 1998 HD31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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