Bottom line: Observe BM247 at "roughly" one month intervals.
LF

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From vlbiobs@nrao.edu Tue Aug  8 16:39:24 2006
Date: Tue, 8 Aug 2006 16:39:24 -0600 (MDT)
From: "VLBI Observers (Aspen only)" <vlbiobs@nrao.edu>
To: Scheduling Officer <schedsoc@nrao.edu>
Cc: Peggy Perley <pperley@nrao.edu>, Phillip Hicks <phicks@nrao.edu>
Subject: Key files for combined programs BM247 and BM248? (fwd)


Hi,

According to the scheduler's notes, bm247 was granted 12X10 hours,
one of which has already observed. Bm248 got 10X16 & 2X8, two 14.4
hour files under that name have already observed (all at 128 Mbps).
With an approximate total of 255 hours left, he's submitted two
combined files, one of 16 hours to be used in Oct. & Nov., one
of 24 hours for the remaining 9 epochs. I've called the 24 hour
files the new bm247, the 16 hour files will bm248c and d. Will
reorganize the OMS windows to reflect these changes.

Please let me know if i've made an error. Probably should have
talked him out of this...

Lisa


---------- Forwarded message ----------
Date: Mon, 07 Aug 2006 19:00:19 -0400
From: Alan Marscher <marscher@bu.edu>
To: "VLBI Observers (Aspen only)" <vlbiobs@nrao.edu>
Subject: Key files for combined programs BM247 and BM248?

Hi,

Attached are two .key files that combine my two programs BM247 and BM248.
For most months, the combined run is for 24 hours, which should make it
easier to schedule and also requires 2 hours less time per month than the
individual programs do. The main advantage to me is that I can use the same
polarization calibration. The usually trustworthy bright, polarized sources
at RA=0400+/-4 hr. haven't been cooperating lately.

For October and November only, when some of the BM248 program sources are
close to the sun so that we can't observe them in X-rays with RXTE, the
program is shortened to 18 hours, which combines the 10 hours from BM247
with the 8 hours from BM248 approved for those two months only.

I have named the .key files as follows:

bm247comb.key: for the combined 24-hour program that should be observed most
months

bm247k.key: for the combined 18-hour program to be observed in Oct. and Nov.
only

Please let me know if you notice any problems.

Thanks 1.0E6,
Al

VLBI Observers (Aspen only) wrote:

> 
> Hi Al,
> 
> No one has objected to your suggestion, so do
> whatever you think is best.
> 
> Cheers,
> 
> Lisa Foley
> NRAO Data Analyst
> 
> 
> ---------- Forwarded message ----------
> Date: Mon, 31 Jul 2006 16:12:13 -0400
> From: Alan Marscher <marscher@bu.edu>
> To: "VLBI Observers (Aspen only)" <vlbiobs@nrao.edu>
> Subject: Combine programs BM247 and BM248?
> 
> Hi,
> 
> I'm reducing my VLBA data from June 2006 and noticed an error in a source
> position. I ended up observing NRAO150 as a calibrator instead of CTA26 as
> I had intended. It's of no particular consequence, although I want to fix
> it.
> 
> It occurred to me, though, that for scheduling purposes it might be easier
> for you if I were to combine BM247 and BM248 into single 24-hour
> observations. That would save 2 hours per month of total time, since
> currently the two projects combined take 26 hours per month. And they
> could be started at any time of the day since the combined program would
> run for a full day. It would be helpful for my program as well, since I
> would only need to do the polarization calibration once.
> 
> Would you like me to submit a 24-hour version of BM247/248 or is the
> current mode better?
> 
> Thanks,
> Al
>