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11681 Ortner (1998 EP6)
Classification: Main-belt Asteroid          SPK-ID: 2011681
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1026515818912083 6.4482e-08  
a 2.188701849787357 1.0177e-08 AU
q 1.964028142618471 1.424e-07 AU
i 2.017712701072064 5.8558e-06 deg
node 324.7854576260264 0.00014004 deg
peri 215.6153870072933 0.0001424 deg
M 52.88014476718216 2.5177e-05 deg
tp 2456826.772540433379
(2014-Jun-18.27254043)
8.2657e-05 JED
period 1182.710178259525
3.24
8.2494e-06
2.259e-08
d
yr
n .3043856446131 2.1231e-09 deg/d
Q 2.413375556956243 1.1222e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1230  
   data-arc span      26367 days (72.19 yr)  
   first obs. used      1943-04-03  
   last obs. used      2015-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51312  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:07:33  

Additional Information
 Earth MOID = .968559 AU 
 T_jup = 3.667 
[ 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 13.8 mag n/a MPO250328  

11681 Ortner           Discovered 1998 Mar. 1 by the OCA-DLR Asteroid Survey at Caussols.
Johannes Ortner (b. 1933) is founder and unique director of the Summer School Alpbach. Held annually since 1975, Alpbach provides in-depth teaching on all aspects of space science and technology for European students, culminating in the design of innovative space-mission proposals.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20081113/MPCPages.arcLast Updated: 2008-11-17

Alternate Designations
 1998 EP6 = 1943 GD = 1980 UP1 = 1985 DW3 = 1986 RY8 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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