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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1846140765307285 4.9529e-08  
a 2.421784632649889 1.5747e-08 au
q 1.97468909913692 1.1524e-07 au
i 2.058600316036864 5.2486e-06 deg
node 182.5520497205577 0.00014196 deg
peri 92.72929439080364 0.00014276 deg
M 268.9459602361571 1.698e-05 deg
tp 2457748.675672783088
(2016-Dec-26.17567278)
6.6628e-05 JED
period 1376.580792318505
3.77
1.3426e-05
3.676e-08
d
yr
n .261517523714442 2.5506e-09 deg/d
Q 2.868880166162858 1.8654e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1027  
   data-arc span      13290 days (36.39 yr)  
   first obs. used      1979-07-30  
   last obs. used      2015-12-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55543  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:23:32  

Additional Information
 Earth MOID = .958123 au 
 Jupiter MOID = 2.24238 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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