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6659 Pietsch (1992 YN)
Classification: Main-belt Asteroid          SPK-ID: 2006659
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1088624310346993 5.0806e-08  
a 2.37144462754352 1.3635e-08 au
q 2.113283400324955 1.151e-07 au
i 5.212243815253901 4.9776e-06 deg
node 258.7714211686385 6.1639e-05 deg
peri 159.4181838525792 6.8169e-05 deg
M 145.2572052835118 2.7728e-05 deg
tp 2456862.288351458086
(2014-Jul-23.78835146)
0.00010257 JED
period 1333.8835281659
3.65
1.1504e-05
3.15e-08
d
yr
n .2698886315021843 2.3276e-09 deg/d
Q 2.629605854762084 1.5119e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1244  
   data-arc span      13712 days (37.54 yr)  
   first obs. used      1977-11-09  
   last obs. used      2015-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46034  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:55:41  

Additional Information
 Earth MOID = 1.12558 au 
 Jupiter MOID = 2.66071 au 
 T_jup = 3.531 
[ 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 13.2 mag n/a MPO337311  
rotation period rot_per 12.9851 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

6659 Pietsch           Discovered 1992 Dec. 24 by T. Urata at Oohira.
Wolfgang Pietsch (b. 1948), at the Max-Planck-Institut für extraterrestrische Physik, started his career in the Astronomisches Institut Tübingen/MPE hard-x-ray group, building and analyzing balloon and space-based experiments that led to the detection of the cyclotron line in Her X-1 and hard x-ray emission from SN 1987A.
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

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Alternate Designations
 1992 YN = 1977 VH1 = 1988 UO1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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