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441812 (2009 JH8)
Classification: Main-belt Asteroid          SPK-ID: 2441812
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09364589321661389 7.2713e-08  
a 3.01778583684929 5.7743e-08 au
q 2.735182586621092 2.2072e-07 au
i 13.60514971568485 8.0799e-06 deg
node 80.18728110484619 4.2067e-05 deg
peri 171.218078301319 7.4658e-05 deg
M 93.24628026194087 5.9744e-05 deg
tp 2458900.524680115206
(2020-Feb-21.02468012)
0.00031523 TDB
period 1914.833649738654
5.24
5.4958e-05
1.505e-07
d
yr
n .188005887638926 5.396e-09 deg/d
Q 3.300389087077489 6.315e-08 au
  Orbit Determination Parameters
   # obs. used (total)      77  
   data-arc span      4462 days (12.22 yr)  
   first obs. used      2008-03-03  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57484  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 14:42:04  

Additional Information
 Earth MOID = 1.72144 au 
 Jupiter MOID = 1.75426 au 
 T_jup = 3.198 
[ 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 16.43   n/a E2021B25  

441812 (2009 JH8)          Discovered 2009-Apr-20 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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