19:45 Ready to open. Cart 2 plt 634 up the telescope. The mostly clear sky, but
humidity gorwed rapidly up to 84% at the sunset. 
20:50 telescope open, clear sky. we go to field and didn't find stars -probably
the rotator's amplifier hasn't been reset. We axis init twice and found a fk5
star. 


All errors:
0 0 F Modu="mir_o_MoveOneGalil"; Text=" Sec returned an error message"
0 0 I Received="?GOCORR one or more axes did not end on a full step  0,  0,  0,  0,  1"
0 0 W Text="failed to adjust collimation and focus"
has been ignored.

Seeing varied from 2.5 - 3.4" (strong wind NE).

After 5-th exposure we gived up with this plate and according to the 
SOS recomendation:
QUICKEXTRACT: sdR-b2-00010729.fit: WARNING: Large flexure flat<->science 
(Post-calibs recommended!)
we did postcalib as well. 

23:20 cart 9 plt 644: gotoField bring us stars into the fibers at once.


PT reports seeing about 4 arc sec! But we are trying wtih a new cartridge:
9 plt 644.

00:10 SOS reports S/N  around 1 - the current seeing variable: 3.0" - 4.4"
Very bad S/N for this cartridge. 

01:42 Next cartidge 6 plt 656 on the telescope.

02:48 We lost the exposure due to the hardware fiducial reading problem 
(axies were halted):
Aug 27 02:43:08 sdssmcp    tLatch     dsc_I_trcInfo az fiducial 15.69 deg 
Aug 27 02:43:08 sdssmcp    tLatch     dsc_I_trcInfo      err = -3850915   
poserr = -3850958 ticks 

first time occured on:
Aug 27 01:56:54 sdssmcp    tLatch     dsc_E_trcErr Invalid barcode in azimuth:
 fididx = 12288, pos = 1096683686 
Aug 27 02:01:55 sdssmcp    tLatch     dsc_I_trcInfo rot fiducial 35 (204.52)
 deg 

We didn't refiducilized the telescope in  azimuth axis, since the telescope
was still tracking and we've been collecting data.