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JPL Small-Body Database Browser
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266587 (2008 HN49)
Classification: Main-belt Asteroid          SPK-ID: 2266587
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .198375136542806 4.4222e-08  
a 2.374157324614599 1.3832e-08 au
q 1.903183541170074 1.1112e-07 au
i 4.486985100303448 6.1026e-06 deg
node 339.6361671234981 6.1007e-05 deg
peri 284.9954504343827 6.416e-05 deg
M 328.2615119381953 1.6692e-05 deg
tp 2458718.300301449355
(2019-Aug-22.80030145)
6.1747e-05 TDB
period 1336.172927934879
3.66
1.1677e-05
3.197e-08
d
yr
n .2694262041039836 2.3545e-09 deg/d
Q 2.845131108059122 1.6576e-08 au
  Orbit Determination Parameters
   # obs. used (total)      302  
   data-arc span      6550 days (17.93 yr)  
   first obs. used      2001-07-29  
   last obs. used      2019-07-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57636  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:36:42  

Additional Information
 Earth MOID = .893156 au 
 Jupiter MOID = 2.26224 au 
 T_jup = 3.512 
[ 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 17.0   n/a MPO338791  

266587 (2008 HN49)          Discovered 2008-Apr-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20110218/Numbers.arcLast Updated: 2011-02-22

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