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JPL Small-Body Database Browser
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392149 (2009 HQ40)
Classification: Main-belt Asteroid          SPK-ID: 2392149
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1339538203640186 5.8482e-08  
a 3.19293582419454 7.8931e-08 au
q 2.765229872366544 1.8202e-07 au
i 12.80038807264047 8.2349e-06 deg
node 160.0499794784008 3.2453e-05 deg
peri 127.0013264675591 5.1003e-05 deg
M 193.5340275565836 3.429e-05 deg
tp 2459564.121946829989
(2021-Dec-15.62194683)
0.00020153 TDB
period 2083.932804806174
5.71
7.7273e-05
2.116e-07
d
yr
n .1727502917415245 6.4057e-09 deg/d
Q 3.620641776022534 8.9504e-08 au
  Orbit Determination Parameters
   # obs. used (total)      124  
   data-arc span      4424 days (12.11 yr)  
   first obs. used      2005-09-13  
   last obs. used      2017-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63772  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 11:44:40  

Additional Information
 Earth MOID = 1.77133 au 
 Jupiter MOID = 1.77329 au 
 T_jup = 3.144 
[ 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 16.0   n/a MPO423457  

392149 (2009 HQ40)          Discovered 2009-Apr-20 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Alternate Designations
 2009 HQ40 = 2010 GT50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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