Tuesday, February 16, 2016

ground vs. roof

I took some SQM readings at the CAO with the hand-held meter at the end of my Sunday night observing session. The time was approximately 11:15 PM.

First reading was 19.62. If I remember correctly, I noted as high as 19.80. Last was 19.70.

I examined the data from the roof-top sensor.


The 11:00 PM reading was 19.55 and the 11:30 PM reading 19.75. Very similar!

No comments: