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JPL Small-Body Database Browser
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379391 (2009 YR9)
Classification: Main-belt Asteroid          SPK-ID: 2379391
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 .1178452643943988 7.4707e-08  
a 2.717732898488752 4.6841e-08 au
q 2.397460946512989 2.2502e-07 au
i 4.355264055184412 7.4005e-06 deg
node 230.6259864649202 9.807e-05 deg
peri 272.1646529240487 0.00011001 deg
M .1927957465735914 4.1265e-05 deg
tp 2458599.623597653176
(2019-Apr-26.12359765)
0.00018759 TDB
period 1636.472020073033
4.48
4.2308e-05
1.158e-07
d
yr
n .2199854293774811 5.6873e-09 deg/d
Q 3.038004850464514 5.2361e-08 au
  Orbit Determination Parameters
   # obs. used (total)      125  
   data-arc span      6142 days (16.82 yr)  
   first obs. used      2002-04-06  
   last obs. used      2019-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .61563  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 13:15:11  

Additional Information
 Earth MOID = 1.41529 au 
 Jupiter MOID = 2.00363 au 
 T_jup = 3.346 
[ 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 16.7   n/a MPO423396  

379391 (2009 YR9)          Discovered 2009-Dec-17 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20

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