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13278 Grotecloss (1998 QK42)
Classification: Main-belt Asteroid          SPK-ID: 2013278
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1858630198301514 5.0851e-08  
a 2.41970101890687 1.5099e-08 AU
q 1.969968080446745 1.1875e-07 AU
i 2.056957454352204 5.955e-06 deg
node 182.6270742319536 0.00014489 deg
peri 92.7023802016506 0.00014596 deg
M 111.9081375551006 1.7731e-05 deg
tp 2456373.133815834034
(2013-Mar-21.63381583)
6.6435e-05 JED
period 1374.804635846925
3.76
1.2868e-05
3.523e-08
d
yr
n .2618553870224827 2.4509e-09 deg/d
Q 2.869433957366995 1.7905e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      949  
   data-arc span      12594 days (34.48 yr)  
   first obs. used      1979-07-30  
   last obs. used      2014-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60524  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 18:19:11  

Additional Information
 Earth MOID = .954505 AU 
 T_jup = 3.490 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO279655  

13278 Grotecloss           Discovered 1998 Aug. 17 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Kristin Shannon Grotecloss (b. 1988) is a finalist in the 2002 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her behavioral science project. She attends the Southside Fundamental Middle School, St. Petersburg, Florida.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20021021/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1998 QK42 = 1979 OP15 = 1990 KU = 1994 NX1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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