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JPL Small-Body Database Browser
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268716 (2006 HL57)
Classification: Main-belt Asteroid          SPK-ID: 2268716
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2585425253353418 4.8146e-08  
a 3.197850150964115 3.8263e-08 au
q 2.371069897289849 1.5296e-07 au
i 26.17269035698738 9.8733e-06 deg
node 147.9561410828657 1.3322e-05 deg
peri 86.94582130594623 3.022e-05 deg
M 97.30412840294083 2.2184e-05 deg
tp 2458035.934472294880
(2017-Oct-09.43447229)
0.00012403 TDB
period 2088.745804619945
5.72
3.7489e-05
1.026e-07
d
yr
n .1723522312785702 3.0934e-09 deg/d
Q 4.024630404638381 4.8156e-08 au
  Orbit Determination Parameters
   # obs. used (total)      218  
   data-arc span      7157 days (19.59 yr)  
   first obs. used      2000-03-27  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5795  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 04:18:37  

Additional Information
 Earth MOID = 1.52937 au 
 Jupiter MOID = 1.70829 au 
 T_jup = 2.986 
[ 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 15.5   n/a MPO450150  
diameter diameter 6.317 km 1.067 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.031   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

268716 (2006 HL57)          Discovered 2006-Apr-18 by CSS at Catalina
Reference: 20110319/Numbers.arcLast Updated: 2011-03-23

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