CHAMP/MIRC Observing Run 2011May: Difference between revisions
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Total cts. ~40 on each L4, R4. | Total cts. ~40 on each L4, R4. | ||
Searching for | Searching for fringe s. B34 offsets 0->8mm | ||
searched 0 -> -8mm | |||
no fringes. maybe we missed them. we searched pretty slow (10 micron/sec) | |||
maybe too bad seeing? | |||
Seeing: W1 9cm/W2 3cm | Seeing: W1 9cm/W2 3cm | ||
end of night. not so good. | |||
Revision as of 12:29, 22 May 2011
UT2011May20
UT2011May21
Beams 6 (W2) - 1 (W1)
Observed HD 192985.
image on L1 (both B1, b6) was bad. 40-50% of the flux.
UT2011May22
CHAMP B3(W1)-B4(W2)
Observers: JDM, FB, CF.
Goals:
- Observe targets under varying SNR conditions to test cophasing and gdt.
- Test the 3 readout modes (Fast, Normal (12Hz Dither, 120Hz Fringes), Slow (6Hz Dither/60Hz fringes)
- First YSO observations for CHAMP !!!!
2:47am Aligning on HD 197950 (K=5.1), cal for MWC 361 (HD 200775)
B3 W1 B4 W2
Using Normal mode (500Hz) B3 L3: max 15 cts. Image quality ok, maybe out of focus B3 R4: max 20 cts. Image quality ok, maybe out of focus B4 L4: max 3 cts. VERY VERY FAINT. B4 R4: max 5 counts. also very faint.
3-3:45am Re-aligned CHAMP table using red laser. There seemed to be some issues and it will be interesting to see if we improve the throughput.
B3 L3: 10-15cts. [same as earlier] B3 R4: 20-30cts. [ maybe slightly better] B4 L4: 15-20cts. [much better] B4 R4: 20 cts.
Total cts. ~40 on each L4, R4.
Searching for fringe s. B34 offsets 0->8mm
searched 0 -> -8mm
no fringes. maybe we missed them. we searched pretty slow (10 micron/sec)
maybe too bad seeing? Seeing: W1 9cm/W2 3cm
end of night. not so good.
