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117391 (2004 YD31)
Classification: Main-belt Asteroid          SPK-ID: 2117391
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .115943230169545 4.4249e-08  
a 2.639692165364828 1.9143e-08 au
q 2.333637729059189 1.1692e-07 au
i 9.727496046225836 3.7482e-06 deg
node 130.5170647262757 3.0147e-05 deg
peri 280.5521428228507 3.4975e-05 deg
M 263.2085246277546 2.0384e-05 deg
tp 2459421.675365109603
(2021-Jul-26.17536511)
9.1547e-05 TDB
period 1566.492615763294
4.29
1.704e-05
4.665e-08
d
yr
n .2298127653953767 2.4999e-09 deg/d
Q 2.945746601670467 2.1363e-08 au
  Orbit Determination Parameters
   # obs. used (total)      525  
   data-arc span      7500 days (20.53 yr)  
   first obs. used      1999-10-08  
   last obs. used      2020-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56465  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:12:02  

Additional Information
 Earth MOID = 1.36823 au 
 Jupiter MOID = 2.40081 au 
 T_jup = 3.366 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.7   n/a MPO436563  

117391 (2004 YD31)          Discovered 2004-Dec-18 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2004 YD31 = 1999 TG281 = 2003 SF152 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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