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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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1856524276453466 4.9989e-08  
a 2.420054395328462 1.5966e-08 AU
q 1.970765421801942 1.1621e-07 AU
i 2.056845286125718 5.6729e-06 deg
node 182.6196520013429 0.00014266 deg
peri 92.71335233315479 0.00014358 deg
M 164.2838418302762 1.6852e-05 deg
tp 2456372.978705267187
(2013-Mar-21.47870527)
6.2376e-05 JED
period 1375.1058143454
3.76
1.3608e-05
3.726e-08
d
yr
n .2617980349180423 2.5907e-09 deg/d
Q 2.869343368854983 1.893e-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      .56675  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 20:36:22  

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 14.4 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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