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30717 (1937 UD)
Classification: Mars-crossing Asteroid          SPK-ID: 2030717
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3344741060520645 6.3652e-08  
a 2.168987009111849 1.5078e-08 au
q 1.443517018200622 1.3859e-07 au
i 8.968076673138587 6.3829e-06 deg
node 33.09806250832474 3.8336e-05 deg
peri 314.7000816338693 3.9656e-05 deg
M 200.6119525354595 1.9247e-05 deg
tp 2457917.079423022055
(2017-Jun-12.57942302)
6.7215e-05 JED
period 1166.766236529203
3.19
1.2167e-05
3.331e-08
d
yr
n .3085450956062094 3.2174e-09 deg/d
Q 2.894457000023077 2.0122e-08 au
  Orbit Determination Parameters
   # obs. used (total)      680  
   data-arc span      28288 days (77.45 yr)  
   first obs. used      1937-11-07  
   last obs. used      2015-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52202  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 17:03:01  

Additional Information
 Earth MOID = .454665 au 
 Jupiter MOID = 2.55587 au 
 T_jup = 3.601 
[ 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 14.8 mag n/a MPO266108  

30717 (1937 UD)          Discovered 1937-Oct-26 by Reinmuth, K. at Heidelberg
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1937 UD = 1999 AZ9 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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