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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2623197964185985 4.1209e-08  
a 3.084638763831186 2.1485e-08 au
q 2.275476951278072 1.2419e-07 au
i 18.90331728688266 5.3487e-06 deg
node 233.4581555194356 1.3913e-05 deg
peri 43.16239175544347 1.6704e-05 deg
M 143.5712135346362 9.9575e-06 deg
tp 2458211.331457446329
(2018-Apr-02.83145745)
5.3209e-05 TDB
period 1978.813637671057
5.42
2.0674e-05
5.66e-08
d
yr
n .1819271876575997 1.9008e-09 deg/d
Q 3.8938005763843 2.7121e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1675  
   data-arc span      10421 days (28.53 yr)  
   first obs. used      1991-07-17  
   last obs. used      2020-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42267  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:50:22  

Additional Information
 Earth MOID = 1.29553 au 
 Jupiter MOID = 1.35188 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-August); 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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