|Proposer||(45204) Krzysztof Zieliński (firstname.lastname@example.org) obscode: ZKRA|
|Assigned To||(3663) Dirk Terrell|
|Date Submitted||March 26, 2023|
Observations start date:
Expiration date (DD-MM-YYYY):
Desired frequency of observations:
All data would be submitted to AAVSO database after VPhot analysis.
Krzysztof Zieliński (ZKRA)
|Target||RA (H.HH)||Dec (D.DD)||Magnitude||Telescope||Observation Frequency||Expiration Date||Proprietary Term|
|SY Dra||17.566050||53.96044||14.0–10.5||BSM_TX||5||Oct. 1, 2023||No|
|DF Cyg||19.814980||43.03739||13.88–10.12||BSM_TX||1||Oct. 1, 2023||No|
Why not just add DF Cyg to your existing proposal 300 on TX and NM? Easier for all?
Submitted to TX and NM on Proposal 300.
I recently received the first images. However, not only images of DF Cyg and SY Dra, but also V Dra were sent to me. I did not expect V Dra to be observed by AAVSOnet anymore (since the original proposal expired 01-04-2023).
1. Is this a misunderstanding? If not, I would like to point out that V Dra and Z Cep are no longer difficult for me to observe visually and therefore I have no need for AAVSOnet support. Moreover, there are other stars in my visual program that would be much more valuable to image. Also, DF Cyg currently has the highest priority for me and I would want it to be observed whenever possible. Removing V Dra and Z Cep from the queue would free up some valuable time.
2. Secondly, I received 2 images in the B band, 2 in V, 2 in Rc and 2 in Ic, although I asked for 3 in B, 2 in V, 2 in Rc and 1 in Ic. This was due to my previous experience, as the SNR of the imaged target stars was always relatively very high in the Ic band compared to the one in B or V band (which is actually nothing extraordinary for Mira-type stars).
V Dra and Z Cep removed. DF Cyg already has a cadence of 1 day as requested earlier.
What SNR are you getting with each exposure?
Listed below are the SNRs of DF Cyg in B, V, R, I bands from the two nights (from single, unstacked images). Aperture = 9 pixels.
2023-04-07 (BSM_NM2), ~11.8 mag in V:
~80 SNR in B (300s)
~240 SNR in V (240s)
~330 SNR in R (175s)
~250 SNR in I (150s)
2023-04-12 (BSM_NM2), ~11.5 mag in V:
~210 SNR in B (300s)
~400 SNR in V (240s)
~480 SNR in R (175s)
~300 SNR in I (150s)
Comments on this proposal are closed.