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JPL Small-Body Database Browser
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442554 (2011 YW78)
Classification: Main-belt Asteroid          SPK-ID: 2442554
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07989593122517501 1.2565e-07  
a 3.106305052385497 8.7252e-08 au
q 2.858123917555691 4.0857e-07 au
i 12.14827460139997 2.484e-05 deg
node 331.2503495271679 5.188e-05 deg
peri 126.7109914551595 0.00017643 deg
M 211.7151108026125 0.00016312 deg
tp 2459824.180866355248
(2022-Sep-01.68086636)
0.00090624 TDB
period 1999.698779106034
5.47
8.4253e-05
2.307e-07
d
yr
n .1800271139641031 7.5851e-09 deg/d
Q 3.354486187215302 9.4223e-08 au
  Orbit Determination Parameters
   # obs. used (total)      85  
   data-arc span      4940 days (13.52 yr)  
   first obs. used      2004-09-09  
   last obs. used      2018-03-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57144  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 12:17:19  

Additional Information
 Earth MOID = 1.89371 au 
 Jupiter MOID = 1.76525 au 
 T_jup = 3.181 
[ 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 16.2   n/a MPO437721  

442554 (2011 YW78)          Discovered 2007-Feb-17 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

[ show close-approach data ]
Alternate Designations
 2011 YW78 = 2010 OQ54 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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