Integration time (running total):
    * OSC 624 X 60s (624m)
    * Total: 10h24m
    

    Integration time (running total):
    * OSC 81 X 60s (81m)
    * Total: 1h21m
    

Seeing index: Ave (3)
Jet stream: Ave (16 m/s)
Transparency: Ave (3)

    Integration time (running total):
    * OSC 21 X 300s (105m)
    * Total: 1h45m

    Integration time target
    * Target: 6 hours
    * Progress: 29%

Seeing index: OK/Poor (3/2)
Jet stream: Average (11 m/s)
Transparency: OK (3)

    Integration time (running total):
    * OSC 37 X 120s (74m)
    * Total: 1h14m
    
    Integration time target
    * Target: 6 hours
    * Progress: 25%

Seeing index: OK (3)
Transparency: Good (4)

    Integration time (running total):
    * OSC Between 30 and 60 X 60s per image

Seeing index: Poor (2)
Jet stream: Ave/Good (12 m/s)
Transparency: Good (4)

    Integration time (running total):
    * OSC 75 X 120s (150m)
    * Total: 2h30m

Seeing index: Poor/average (1/2)
Jet stream: Poor (30 m/s)
Transparency: Average (3)

    Integration time (running total):
    * OSC 5 X 300s (30m)
    * Total: 0h30m
    

Between the clouds the other day I squeezed in 30 minutes of exposure time on the border between Cassiopeia and Cepheus, a region full of interesting objects. The view in the photo is wide field - 6.6 x 4.8 degrees. Due to the short exposure the H alpha clouds are mainly colourless (e.g. the Lobster Claw Nebula) and the resolution is somewhat poor but I thought it quite an interesting exercise to point the…

    Integration time (running total):
    * OSC 365 X 60s (365m)
    * Total: 6h05m
    
    Integration time target
    * Target: 6 hours
    * Progress: 100%

Notes

Seeing index: Excellent 5/4
Jet stream: Poor (32m/s) Moon phase: 80%
Transparency: Poor

    Integration time:
    * OSC 33 X 120s (66m)
    * Total: 1h06m

This evening was unexpectedly clear though with a thin layer of high, semi-tramsparent cloud which affected guiding and visibility. Around half the gathered frames were discarded. The clouds got thicker around 1 am so I closed the observatory roof and left the calibration frames for the morning. As has been the case recently, calibration frames have been very problematic but I did finally resolve two outstanding issues:

    Integration time (running total):
    * OSC best 15-25% of 500 frames
    

Last night was beautifully clear and remarkably timed for the occultation of Mars. At 1.5°W this took place at 04h58. The exit from the occutation exactly one hour later could not be imaged from the observatory because the Moon and Mars had disappeared behind the large oak tree in the West-North-West direction.

10th July 2022 In the end it took five hours to stack the subs! The end result was good though.