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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1342428826332225 5.3201e-08  
a 3.191569952152067 6.0186e-08 au
q 2.763124401649597 1.7889e-07 au
i 12.8039772169292 8.1158e-06 deg
node 160.0451957895901 2.6849e-05 deg
peri 127.163860876922 4.1713e-05 deg
M 262.4879926402797 3.2257e-05 deg
tp 2459564.605812113368
(2021-Dec-16.10581211)
0.00019361 TDB
period 2082.595752661112
5.70
5.891e-05
1.613e-07
d
yr
n .1728611995582902 4.8897e-09 deg/d
Q 3.620015502654536 6.8265e-08 au
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      5304 days (14.52 yr)  
   first obs. used      2005-09-13  
   last obs. used      2020-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63692  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:27:24  

Additional Information
 Earth MOID = 1.76984 au 
 Jupiter MOID = 1.77587 au 
 T_jup = 3.144 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457525.5 (2016-May-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1331575176794581 5.3097e-08  
q 2.76769830557002 1.7854e-07 au
tp 2457479.009276936950
(2016-Mar-31.50927694)
0.00017548 TDB
node 160.0768144512254 2.6852e-05 deg
peri 126.8806322448644 4.1941e-05 deg
i 12.8008834954809 8.1143e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      154  
   data-arc span      5304 days (14.52 yr)  
   first obs. used      2005-09-13  
   last obs. used      2020-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63692  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 16:27:24  

Additional Information
 Jupiter MOID = 1.77587 au 
 T_jup = 3.144 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.819297704134632E-15 -9.068250503086733E-15 2.332320955370473E-12 -1.947944709790799E-14 4.751990048424795E-13 -3.395202614151043E-15
q -9.068250503086733E-15 3.187539826021545E-14 -5.708744739939847E-12 7.717698896006294E-14 -1.211999895562311E-12 2.414490870324618E-14
tp 2.332320955370473E-12 -5.708744739939847E-12 3.079482326628449E-8 -3.739949851180109E-11 5.69306414214923E-9 1.213412425279267E-11
node -1.947944709790799E-14 7.717698896006294E-14 -3.739949851180109E-11 7.210263600702685E-10 -7.089403175385322E-10 4.500131508596975E-11
peri 4.751990048424795E-13 -1.211999895562311E-12 5.69306414214923E-9 -7.089403175385322E-10 1.759048306276342E-9 -4.132350857362906E-11
i -3.395202614151043E-15 2.414490870324618E-14 1.213412425279267E-11 4.500131508596975E-11 -4.132350857362906E-11 6.58413106400261E-11

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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