SAGAMORE HILL SOLAR RADIO FLUX VALUES (from SGD Explanation of Data Reports)

Daily Solar Flux Values - Sagamore Hill -- The Sagamore Hill Solar Radio 
Observatory (located at 42 deg 37' 54.36" N 70 deg 49' 15.15"W) began 
operating solar patrols at 8800, 4995, 2695, 1415, and 609 MHz in 1966.  The 
patrol was extended to 15400 MHz in 1967, to 242 MHz in early 1969, and to 
410 MHz in early 1971.  Flux calibrations in units of 10-22Wm-2Hz-1 are made 
at about meridian transit each day.  All flux data are corrected to Sun-Earth 
distance of 1 AU.

The Air Force Geophysics Laboratory (AFGL -- currently Phillips Lab (PL)) 
transferred operation of the observatory to Detachment 2, 3rd Weather Wing of 
the US Air Weather Service in October 1978.  However, AFGL(PL) continues to 
work in an advisory capacity to the observatory.  Det 2, 4WW and AFGL 
completed an absolute calibration of several frequencies using Cassiopeia A 
and the moon as a reference source.  The results are presented in the table 
below (apply correction factor to all data before indicated date).

Frequency                                           Correction
 (MHz)                    Data to Date                Factor 
==============================================================
 242                      1 Aug 79                    1.55
 410                      3 Aug 79                    1.33
 609                     21 Nov 79                    1.33
 609                21 Nov 79 - 27 Sep 80              1.17
1415                     15 Nov 79                    1.11
8800                     23 Oct 81                    0.85
8800                23 Oct - 21 Nov 81                1.07