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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1856524230515467 4.9908e-08  
a 2.420054389848252 1.5596e-08 AU
q 1.970765428456392 1.1613e-07 AU
i 2.056845768344924 5.2771e-06 deg
node 182.6196501169346 0.00014258 deg
peri 92.71336372921294 0.00014337 deg
M 164.283836126945 1.647e-05 deg
tp 2456372.978729183951
(2013-Mar-21.47872918)
6.0553e-05 JED
period 1375.105809674512
3.76
1.3293e-05
3.639e-08
d
yr
n .2617980358073043 2.5307e-09 deg/d
Q 2.869343351240112 1.8491e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1003  
   data-arc span      12957 days (35.47 yr)  
   first obs. used      1979-07-30  
   last obs. used      2015-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55898  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:34:17  

Additional Information
 Earth MOID = .95716 AU 
 T_jup = 3.489 
[ 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 14.5 mag n/a MPO319250  

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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