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JPL Small-Body Database Browser
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442549 (2011 YA45)
Classification: Main-belt Asteroid          SPK-ID: 2442549
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 .08383646708396943 7.6702e-08  
a 3.162315845165551 6.8e-08 au
q 2.897198456903214 2.1406e-07 au
i 9.867754929409951 9.6119e-06 deg
node 283.7113748481534 5.6184e-05 deg
peri 161.4673683702839 0.0001048 deg
M 134.8657842525563 8.9919e-05 deg
tp 2457831.005403515089
(2017-Mar-18.50540351)
0.00049815 TDB
period 2054.027685894076
5.62
6.6253e-05
1.814e-07
d
yr
n .1752654077996517 5.6532e-09 deg/d
Q 3.427433233427888 7.3701e-08 au
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      4919 days (13.47 yr)  
   first obs. used      2005-12-06  
   last obs. used      2019-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5821  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:45  

Additional Information
 Earth MOID = 1.9155 au 
 Jupiter MOID = 1.76337 au 
 T_jup = 3.176 
[ 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 15.7   n/a MPO437721  

442549 (2011 YA45)          Discovered 2005-Dec-06 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02

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