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19835 Zreda (2000 SQ252)
Classification: Main-belt Asteroid          SPK-ID: 2019835
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .179724471633937 3.2273e-08  
a 2.318553568638106 7.7026e-09 au
q 1.901852753559643 7.602e-08 au
i 3.587969126728844 5.0681e-06 deg
node 146.4304661856924 6.1153e-05 deg
peri 107.0477762897364 6.406e-05 deg
M 5.113944057089357 2.1573e-05 deg
tp 2459182.182019152805
(2020-Nov-28.68201915)
7.7235e-05 TDB
period 1289.508260429338
3.53
6.4259e-06
1.759e-08
d
yr
n .2791761875803254 1.3912e-09 deg/d
Q 2.735254383716569 9.0869e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1132  
   data-arc span      9725 days (26.63 yr)  
   first obs. used      1993-10-09  
   last obs. used      2020-05-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54174  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:06:18  

Additional Information
 Earth MOID = .889467 au 
 Jupiter MOID = 2.31302 au 
 T_jup = 3.555 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.32   n/a E2021B10  

19835 Zreda           Discovered 2000 Sept. 24 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Grazyna Zreda mentored a finalist in the 2003 Discovery Channel Youth Science Challenge, a middle school science competition. She teaches at the Emily Gray Junior High School, Tucson, Arizona.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20031010/MPCPages.arcLast Updated: 2003-10-10

[ show close-approach data ]
Alternate Designations
 2000 SQ252 = 1993 TW31 = 1994 YC3 = 1999 GH39 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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