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6625 Nyquist (1981 EX41)
Classification: Main-belt Asteroid          SPK-ID: 2006625
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1880055108500257 5.2104e-08  
a 3.15729858228301 2.5027e-08 au
q 2.563709049414831 1.6325e-07 au
i 1.307058832549985 6.6738e-06 deg
node 200.3525010531194 0.0002546 deg
peri 205.871694174142 0.0002558 deg
M 182.4930758563928 1.9689e-05 deg
tp 2458410.879919918207
(2018-Oct-19.37991992)
0.00011779 JED
period 2049.141310545627
5.61
2.4364e-05
6.67e-08
d
yr
n .175683345090604 2.0889e-09 deg/d
Q 3.750888115151189 2.9732e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1128  
   data-arc span      13385 days (36.65 yr)  
   first obs. used      1978-09-26  
   last obs. used      2015-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53744  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:55:33  

Additional Information
 Earth MOID = 1.57215 au 
 Jupiter MOID = 1.6497 au 
 T_jup = 3.178 
[ 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 13.4 mag n/a MPO253409  

6625 Nyquist           Discovered 1981 Mar. 2 by S. J. Bus at Siding Spring in the course of the U.K. Schmidt-Caltech Asteroid Survey.
Laurence E. Nyquist (b. 1939) is a planetary scientist at NASA's Johnson Space Center. His meticulous work on the chronometry of a wide range of planetary materials has been pivotal in unraveling the time scales for accretion, differentiation and impacts on meteorite parent bodies.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060809/MPCPages.arcLast Updated: 2007-08-08

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Alternate Designations
 1981 EX41 = 1978 SC3 = 1984 UL1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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