[mmaimcal] Error in ALG minutes for 28 June
Al Wootten
awootten at nrao.edu
Fri Sep 1 10:36:06 EDT 2000
Hi, Carolyn
Yesterday, there appeared on the ALG WWW site, minutes of the 28-29 June
meeting. These need to be corrected (page 3).
ALMA LIASON GROUP
Minutes of 28-29 June 2000
...snip
* The ASAC also recommends implementation of the following frequency bands in all front-end - 3, 6, 7, 9, 4, 8, 1, 10 (in order of priority) plus water vapor radiometer.
...snip
This is incorrect. The order is incorrect, and two bands are missing.
I suggest adding a statement:
CORRECTION: The ASAC report
(http://www.cv.nrao.edu/~awootten/mmaimcal/asacreport/node3.html)
says:
First Priority: Bands 3, 6, 7, and 9
Second Priority: Bands 1, 4, and 2 (see below)
Third Priority: Bands 5, 8, and 10
On 10 June, the ASAC reaffirmed this by stating:
b) Receivers. Japan proposed that it provide bands 8 and 10. However, in the
ASAC a strong interest in the 2 mm band (number 4) was expressed, especially
for high-redshift objects. The importance of band 1 was also reiterated. A
concern was expressed as to whether band 10 was technologically feasible yet.
On 28 June, in response to the JRDG receiver specifications document
the ASAC clarified its earlier statement:
Issue: lower frequency range of Band 3 (now 86 GHz)
ASAC: The ASAC actually wrote
(http://www.cv.nrao.edu/~awootten/mmaimcal/asacreport/node3.html):
"We strongly urge that the JRDG study the possibility of extending
the lower frequency range of Band 3 to include the SiO maser
transition near 86 GHz. If this is possible, Band 2 would drop to
third priority."
Since the VLBA 3 mm receivers will go down to 84 GHz, perhaps
some attention should be paid to the actual number of the lower
limit. We recommend that 84 GHz is adopted.
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