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13274 Roygross (1998 QX37)
Classification: Main-belt Asteroid          SPK-ID: 2013274
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04674455290844905 9.9061e-08  
a 2.457608083182668 3.2631e-08 AU
q 2.342728292110104 2.4327e-07 AU
i 7.609627127064301 1.0193e-05 deg
node 335.132693957893 5.3216e-05 deg
peri 317.1938213831741 0.00020199 deg
M 123.6208883132597 0.00021061 deg
tp 2456517.266842381560
(2013-Aug-12.76684238)
0.00081825 JED
period 1407.237394232338
3.85
2.8027e-05
7.673e-08
d
yr
n .2558203764876385 5.095e-09 deg/d
Q 2.572487874255233 3.4156e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      478  
   data-arc span      9364 days (25.64 yr)  
   first obs. used      1989-02-11  
   last obs. used      2014-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56693  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:24:47  

Additional Information
 Earth MOID = 1.33436 AU 
 T_jup = 3.478 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.9 mag n/a PDS3 (MPC 37560)  

13274 Roygross           Discovered 1998 Aug. 17 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Roy James Gross (b. 1987) is a finalist in the 2002 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his botany and zoology project. He attends the Penndale Middle School, Lansdale, Pennsylvania.
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
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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