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JPL Small-Body Database Browser
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26722 (2001 HK7)
Classification: Main-belt Asteroid          SPK-ID: 2026722
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .262435015664981 4.2321e-08  
a 3.083422749428735 2.2134e-08 au
q 2.274224651880646 1.2864e-07 au
i 18.90734406969959 5.3546e-06 deg
node 233.4577848927833 1.5925e-05 deg
peri 43.07357500516954 1.8824e-05 deg
M 70.884747484244 1.0124e-05 deg
tp 2458211.097862475744
(2018-Apr-02.59786248)
5.5313e-05 TDB
period 1977.643632572606
5.41
2.1295e-05
5.83e-08
d
yr
n .1820348186451045 1.9601e-09 deg/d
Q 3.892620846976824 2.7943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1560  
   data-arc span      10333 days (28.29 yr)  
   first obs. used      1991-07-17  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43443  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 04:55:03  

Additional Information
 Earth MOID = 1.29379 au 
 Jupiter MOID = 1.35162 au 
 T_jup = 3.093 
[ 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 12.6   n/a MPO452543  
diameter diameter 16.349 km 0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 20.252 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Moravec, P.; Letfullina, A.; Ditteon, R. (2013) Minor Planet Bull. 40, 17-20.]
geometric albedo albedo 0.035   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26722 (2001 HK7)          Discovered 2001-Apr-21 by LINEAR at Socorro
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2001 HK7 = 1998 XM81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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