http://umtof.umd.edu/pm/crn/CARRTIME.HTML

The synodic  rotation rate varies a little during the year because of the 
eccentricity of the Earth's orbit; the mean synodic value is about 27.2753 
days. As a consequence the apparent (synodic) solar rotation period is a 
bit longer than the true (sidereal) period. (Hint: it may help to think of 
the sideREAL period as the 'real' period.) If you think about it you can 
convince yourself that the sidereal period is equal to the synodic period 
divided by (1+frac), where frac = 27.2753/365.25 = the fraction of a year 
the Earth moves in its orbit during one synodic solar rotation. 

The Earth is farthest from the Sun in July and closest in January. Objects 
that are farther from the Sun have a smaller angular velocity (a longer 
'year') than do closer objects. Hence the synodic period is a bit smaller 
in July than in January. 

CR2079:360                    2009:01:13_22h:34m:00s

 CT2079:360         <=  times 2009:01:13_22h:34m:00s
 CT2079:360         <=  times 2009:01:13_22h:00m:00s
 CT2079:360         <=  times 2009:01:13_22h:59m:00s
 CT2079:360         <=  times 2009:01:13_21h:59m:00s
 CT2079:359         <=  times 2009:01:13_23h:34m:00s   Sensitive to 2 hurs
 times CT2079:360   =>  2009:01:13_22h:13m:23s         Sensitive to 1 degs
 times CT2079:359   =>  2009:01:14_00h:02m:30s

 CT2079:360.04      <=  suninfo -pu 2009:01:13_22h:34m:00s
 CT2079:360.03      <=  suninfo -pu 2009:01:13_22h:34m:59s
 CT2079:360.02      <=  suninfo -pu 2009:01:13_22h:36m:00s
 CT2079:359.99      <=  suninfo -pu 2009:01:13_22h:40m:00s
 CT2079:359.99      <=  suninfo -pu 2009:01:13_22h:39m:00s
 CT2079:359.98      <=  suninfo -pu 2009:01:13_22h:40m:30s
 CT2079:359.98      <=  suninfo -pu 2009:01:13_22h:41m:00s Sensitive to 1 min

 CT2079:360.024     <=  cl0_date,'2009:01:13_22h:34m:00s'
 CT2079:360.015     <=  cl0_date,'2009:01:13_22h:34m:59s'
 CT2079:359.969     <=  cl0_date,'2009:01:13_22h:40m:00s' 
 CT2079:359.973     <=  cl0_date,'2009:01:13_22h:39m:30s'
 CT2079:359.996     <=  cl0_date,'2009:01:13_22h:37m:05s'
 CT2079:359.996     <=  cl0_date,'2009:01:13_22h:37m:00s'
 CT2079:359.999     <=  cl0_date,'2009:01:13_22h:36m:40s'
 CT2079:360.000     <=  cl0_date,'2009:01:13_22h:36m:30s' Sensitive to 10sec 






CR2072:360                    2008:07:06_23h:37m:00s
CR2072:360                    times 
times                         2008:07:06_23h:58m:46s
CR2072:360.03                 suninfo