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17022 Huisjen (1999 DN7)
Classification: Main-belt Asteroid          SPK-ID: 2017022
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1876472681364666 2.4828e-08  
a 2.458586084046605 7.8924e-09 au
q 1.997239121896926 6.14e-08 au
i 4.237601919072805 4.0842e-06 deg
node 88.41903739895442 4.0104e-05 deg
peri 222.7163048911173 4.1892e-05 deg
M 101.3040651703635 1.2331e-05 deg
tp 2458804.266739605965
(2019-Nov-16.76673961)
4.7895e-05 TDB
period 1408.077489308721
3.86
6.7802e-06
1.856e-08
d
yr
n .2556677475021192 1.2311e-09 deg/d
Q 2.919933046196284 9.3734e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2003  
   data-arc span      15887 days (43.50 yr)  
   first obs. used      1977-08-19  
   last obs. used      2021-02-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45991  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 01:51:32  

Additional Information
 Earth MOID = .983306 au 
 Jupiter MOID = 2.34877 au 
 T_jup = 3.463 
[ 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 14.23   n/a E2021B10  
diameter diameter 8.443 km 0.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.043   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

17022 Huisjen           Discovered 1999 Feb. 18 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Martin A. Huisjen (b. 1944) was the manager at Ball Aerospace and Technology Corporation for the development of all the scientific instruments on the Deep Impact spacecraft. His technical and programmatic contributions include identifying alternative readout modes for the detector in the near-infrared spectrometer.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050721/MPCPages.arcLast Updated: 2005-07-21

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Alternate Designations
 1999 DN7 = 1977 QZ1 = 1993 VC8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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