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

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3347605184815691 4.0225e-08  
a 2.16765051926652 3.5721e-09 au
q 1.442006707550017 8.7187e-08 au
i 8.971074257537289 3.8741e-06 deg
node 33.0596790146796 1.6626e-05 deg
peri 314.7237278030835 1.7414e-05 deg
M 36.45941353544257 4.0073e-06 deg
tp 2459082.443609484823
(2020-Aug-20.94360948)
1.2984e-05 TDB
period 1165.687992873192
3.19
2.8814e-06
7.889e-09
d
yr
n .3088304951247465 7.6339e-10 deg/d
Q 2.893294330983022 4.7679e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1836  
   data-arc span      30445 days (83.35 yr)  
   first obs. used      1937-10-26  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43925  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 06:39:24  

Additional Information
 Earth MOID = .453407 au 
 Jupiter MOID = 2.56772 au 
 T_jup = 3.602 
[ 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 15.03   n/a E2021B10  

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

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Alternate Designations
 1937 UD = 1999 AZ9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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