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215775 (2004 HF6)
Classification: Main-belt Asteroid          SPK-ID: 2215775
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3934178622314795 4.7988e-08  
a 2.999979563074601 2.8482e-08 au
q 1.819734016631664 1.3618e-07 au
i 8.175563720797838 1.0433e-05 deg
node 206.6617813220389 3.5059e-05 deg
peri 93.92913060492437 3.8803e-05 deg
M .7863355187821622 1.886e-05 deg
tp 2458996.354458534159
(2020-May-26.85445853)
9.9383e-05 TDB
period 1897.911123249494
5.20
2.7029e-05
7.4e-08
d
yr
n .1896822225182119 2.7013e-09 deg/d
Q 4.180225109517539 3.9688e-08 au
  Orbit Determination Parameters
   # obs. used (total)      416  
   data-arc span      7614 days (20.85 yr)  
   first obs. used      1999-07-22  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5494  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 04:14:51  

Additional Information
 Earth MOID = .827113 au 
 Jupiter MOID = 1.28174 au 
 T_jup = 3.116 
[ 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 15.8   n/a MPO348583  
diameter diameter 4.546 km 0.543 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.054   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

215775 (2004 HF6)          Discovered 2004-Apr-17 by LINEAR at Socorro
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Alternate Designations
 2004 HF6 = 1999 RN99 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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