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215588 (2003 HF2)
Classification: Apollo [NEO, PHA]          SPK-ID: 2215588
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 95 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .6755677441988661 1.6633e-08  
a 1.11376416461514 2.4478e-09 au
q .3613410203565553 1.8111e-08 au
i 3.056043096508193 4.0224e-06 deg
node 189.9543924587179 7.3289e-05 deg
peri 230.972020635601 7.3673e-05 deg
M 318.5760619223 2.7804e-06 deg
tp 2458649.901162695504
(2019-Jun-15.40116270)
3.4743e-06 TDB
period 429.3270846683587
1.18
1.4153e-06
3.875e-09
d
yr
n .8385215209007566 2.7643e-09 deg/d
Q 1.866187308873725 4.1015e-09 au
  Orbit Determination Parameters
   # obs. used (total)      356  
   # delay obs. used      11  
   # Doppler obs. used      0  
   data-arc span      5491 days (15.03 yr)  
   first obs. used      2002-05-10  
   last obs. used      2017-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45771  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-May-22 06:20:27  

Additional Information
 Earth MOID = .00317985 au 
 Jupiter MOID = 3.49206 au 
 T_jup = 5.353 
[ 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 19.4   n/a MPO338572  
diameter diameter 0.488 km 0.158 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  
geometric albedo albedo 0.118   0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)  

215588 (2003 HF2)          Discovered 2003-Apr-24 by LONEOS at Anderson Mesa
Reference: 20090607/Numbers.arcLast Updated: 2009-06-08

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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