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2612 Kathryn (1979 DE)
Classification: Main-belt Asteroid          SPK-ID: 2002612
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 42 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1612372852408459 3.5748e-08  
a 2.902338268317765 1.6507e-08 au
q 2.43437312508359 1.0261e-07 au
i 20.20087018034333 3.9453e-06 deg
node 132.6452530598509 1.0503e-05 deg
peri .2772754872191995 1.5976e-05 deg
M 154.3784682846155 1.4124e-05 deg
tp 2458226.029827917753
(2018-Apr-17.52982792)
6.8412e-05 TDB
period 1806.011324296792
4.94
1.5407e-05
4.218e-08
d
yr
n .1993342982720075 1.7006e-09 deg/d
Q 3.370303411551939 1.9169e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2551  
   data-arc span      17972 days (49.20 yr)  
   first obs. used      1971-08-16  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .37772  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:07:42  

Additional Information
 Earth MOID = 1.44882 au 
 Jupiter MOID = 1.68627 au 
 T_jup = 3.176 
[ 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 11.1   n/a MPO347540  
diameter diameter 25.144 km 0.259 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
rotation period rot_per 7.71 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Stephens, R.D. (2004) Minor Planet Bull. 31, 95-97.]
[Pray, D. (2005) Minor Planet Bull. 32, 48-51.]
geometric albedo albedo 0.087   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

2612 Kathryn (1979 DE)          Discovered 1979-Feb-28 by Thomas, N. G. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1979 DE = 1969 BD = 1971 QC 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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