MIRC Observing Run 2010Dec: Difference between revisions

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'''Observing Strategy 2011 Dec 2-7:'''<br>
'''Observing Strategy 2011 Dec 2-7:'''<br>
We would like to observe AB Aurigae using MIRC-6T.  For the POP setup, I propose E1(POP1)-E2(POP3)-W1(POP1)-W2(POP5).   
We would like to observe AB Aurigae using MIRC-6T (V=7.1, H=5.1).  The target is very high priority, so we should record data even if we have only some of the baselines.  The fringe contrast might be quite low. 
I propose the following setup, which would require POP changes around LST 03:43 and LST 06:39 (times computed with ASPRO2 for 2011/12/02).  The night time is approximately between LST 23:00 and 11:00:


In case of poor conditions or, if it is clear that AB Aurigae is not feasible with MIRC, we plan to switch to CLIMB an to observe AB Aurigae and some other fainter YSOs.  In this case, I propose E1(POP?)-E2(POP?)-W1(POP?)-W2(POP?)-S1(POP?)-S2(POP?).  With this setup, we can access primary targets during any time of the night with any subtriplet (see possible observing sequence and triplet priorities below).  In order observe the faint objects (V=10..12), we should try turning up the gain on the telescopes.  Another trick is to acquire a bright, nearby star and to switch then to the target star.
=== POPs S1-S2-W1-W2-E1-E2 = 2-3-1-5-5-5:<br>
S1-S2-W1-W2-E1-E2: LST 23:35-03:43  <br>
 
change POPs W1, E1, E2 (this will give another 2.5-hours of 6T-time; if the POP changes produce too much overhead, then you can also switch directly to the final POP-setup for the night which gives 5T coverage already starting at LST 02:07):
 
=== POPs S1-S2-W1-W2-E1-E2 = 2-3-3-5-1-3:<br>
S1-S2-W1-W2-E1-E2: LST 03:48-06:17  (zenith transit between 04:41-05:13)<br>
S1-S2-W1-W2-E2:    LST 03:48-06:39
 
change POP S1, S2, W1, W2:
 
=== POPs S1-S2-W1-W2-E1-E2 = 1-2-5-5-1-2:<br>
S1-S2-W2-E1-E2:    LST 02:07-06:17    (zenith transit between 04:41-05:13)<br>
S1-S2-W1-E1-E2:    LST 05:42-08:00<br>
S1-S2-E2-W1:      LST 05:43-09:35<br>
S1-S2-E1-E2:      LST 01:48-10:08    (zenith transit between 04:41-05:13)
 
In case of poor conditions (or if it gets clear that AB Aurigae is absolutely not feasible with MIRC), we plan to switch to CLIMB an to observe various YSOs.  For this case, I have listed different sequences below.  We can access primary targets during any time of the night with any subtriplet (see possible observing sequence and triplet priorities below).  In order observe the faint objects (V=10..12), we should try turning up the gain on the telescopes.  Another trick is to acquire a bright, nearby star and to switch then to the target star.


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Latest revision as of 07:43, 25 November 2011

(STILL IN PREPARATION)

Observing Strategy 2011 Dec 2-7:
We would like to observe AB Aurigae using MIRC-6T (V=7.1, H=5.1). The target is very high priority, so we should record data even if we have only some of the baselines. The fringe contrast might be quite low. I propose the following setup, which would require POP changes around LST 03:43 and LST 06:39 (times computed with ASPRO2 for 2011/12/02). The night time is approximately between LST 23:00 and 11:00:

=== POPs S1-S2-W1-W2-E1-E2 = 2-3-1-5-5-5:
S1-S2-W1-W2-E1-E2: LST 23:35-03:43

change POPs W1, E1, E2 (this will give another 2.5-hours of 6T-time; if the POP changes produce too much overhead, then you can also switch directly to the final POP-setup for the night which gives 5T coverage already starting at LST 02:07):

=== POPs S1-S2-W1-W2-E1-E2 = 2-3-3-5-1-3:
S1-S2-W1-W2-E1-E2: LST 03:48-06:17 (zenith transit between 04:41-05:13)
S1-S2-W1-W2-E2: LST 03:48-06:39

change POP S1, S2, W1, W2:

=== POPs S1-S2-W1-W2-E1-E2 = 1-2-5-5-1-2:
S1-S2-W2-E1-E2: LST 02:07-06:17 (zenith transit between 04:41-05:13)
S1-S2-W1-E1-E2: LST 05:42-08:00
S1-S2-E2-W1: LST 05:43-09:35
S1-S2-E1-E2: LST 01:48-10:08 (zenith transit between 04:41-05:13)

In case of poor conditions (or if it gets clear that AB Aurigae is absolutely not feasible with MIRC), we plan to switch to CLIMB an to observe various YSOs. For this case, I have listed different sequences below. We can access primary targets during any time of the night with any subtriplet (see possible observing sequence and triplet priorities below). In order observe the faint objects (V=10..12), we should try turning up the gain on the telescopes. Another trick is to acquire a bright, nearby star and to switch then to the target star.

Possible observing sequence for three configuations: Media:ObsPlan.2011Dec.txt
For the priority of the different triplets, I would suggest E1-W1-W2 (priority 1), E1-E2-W2 (priority 2), and E2-W1-W2 (priority 3).

Media:mircplan.MIRC.2011Dec.YSO.txt
(use mircplan to get precise delay times for each night) --> NO! Use Aspro2 if you care about the elevation :)

Calibrator List
Media:Cals_2011Dec.txt
(contains also some VLTI calibrators with rather large diameter, so please be careful when selecting a calibrator)

Observing Logs:
please put in here:
Media:CHARA_MIRC_2011Dec2.txt
Media:CHARA_MIRC_2011Dec3.txt
Media:CHARA_MIRC_2011Dec4.txt
Media:CHARA_MIRC_2011Dec5.txt
Media:CHARA_MIRC_2011Dec6.txt
Media:CHARA_MIRC_2011Dec7.txt

CHARA-ID numbers for YSOs:

MWC 297 = CHARA 320030
MWC 340 = CHARA 320079
MWC 342 = CHARA 320106
MWC 300 = CHARA 320108
V1057 Cyg = CHARA 320109
V1977 Cyg = CHARA 320107
VV Ser = CHARA 320105
Lkha234 = CHARA 320080
MWC1080 = CHARA 320081
AS205A = CHARA 320093
MWC863 = CHARA 187041
HD141569 = CHARA 178551

command, on terminal window e.g.: dbadd MWC 863

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