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447015 (2004 HF4)
Classification: Main-belt Asteroid          SPK-ID: 2447015
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1165294005832816 1.3773e-07  
a 2.767358570439355 4.2274e-08 au
q 2.44487993502705 3.6283e-07 au
i 13.21340945078174 1.4881e-05 deg
node 201.4554521110361 3.206e-05 deg
peri 334.9927011076227 5.4495e-05 deg
M 203.7676136456279 4.68e-05 deg
tp 2459730.234946609797
(2022-May-30.73494661)
0.00022514 TDB
period 1681.498867870139
4.60
3.853e-05
1.055e-07
d
yr
n .2140947025768693 4.9058e-09 deg/d
Q 3.08983720585166 4.72e-08 au
  Orbit Determination Parameters
   # obs. used (total)      94  
   data-arc span      5605 days (15.35 yr)  
   first obs. used      2004-04-16  
   last obs. used      2019-08-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65891  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:48:46  

Additional Information
 Earth MOID = 1.4534 au 
 Jupiter MOID = 1.8944 au 
 T_jup = 3.291 
[ 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 16.5   n/a MPO450457  

447015 (2004 HF4)          Discovered 2004-Apr-16 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-10-28

[ show close-approach data ]
Alternate Designations
 2004 HF4 = 2006 SB95 = 2006 SO371 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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