Archive for May 21st, 2011

The new monthly MPC circular released – MPC 74769- 75106.

ISON-NM statistic for the previous month (April 12 – May 13):

Number of measurements: 11871

Measured objects: 2948

Discovered objects: 31

Sky coverage: 560 sq. degrees

Observing nights*: 27

* – include partial nights