Planet Hunters Talk

C17 - C18 overlap targets request options

  • ajamyajax by ajamyajax

    All right, hope Kepler keeps going to give us more chances for continued observations. Lots of target options here from k2fov (6.3.dev0) for you to consider. If interested, of course.

    "Request for input on the Campaign 17 and 18 field placement"

    https://keplergo.arc.nasa.gov/request-for-input-on-the-campaign-17-and-18-field-placement.html

    The data files are also organized by the request option and campaign. And only stellar targets are included here (no extended targets).

    171 - Mar 3 - Apr 18, 2018 46 days 14 modules of C10

    172 - Mar 3 - May 8, 2018 66 days 14 modules of C6

    173 - Mar 3 - May 23, 2018 81 days 1 module of C6

    181 - Apr 23 - Jul 18, 2018 86 days 17 modules of C9*

    182 - May 13 - Aug 09, 2018 88 days 9 modules of C7

    184 - Apr 23 - Jul 18, 2018 86 days 1/2 module of C5

    185 - May 13 - Aug 09, 2018 88 days 14 modules of C5 and C16

    186 - May 28 - Aug 25, 2018 88 days 2 modules of C14 (data not yet available)

    https://www.dropbox.com/s/sgzq89rhea89e56/c17-c18-k2fov-6.3.dev0-files.zip?dl=0

    Posted

  • Artman40 by Artman40

    Is the chances of these 2 campaigns happening dependent on how many times Kepler spacecraft enters safe or emergency mode?

    Posted

  • zoo3hans by zoo3hans in response to Artman40's comment.

    Fuel runs out!

    Posted

  • Artman40 by Artman40

    I know that fuel runs out but is the fuel running out mainly dependent on the happenings of safe and emergency modes? Does campaign 18 only happen when these events don't happen?

    Posted

  • ajamyajax by ajamyajax

    If it interests, these Keck targets with recently released data are also in these (possible) field of views according to k2fov 6.3.dev0:

    c171/c10:

    201258223,183.120178,-3.084473,7.29

    201242698,184.806215,-3.319789,8.43

    229056929,186.419094,-0.282177,8.41

    229110376,188.285029,1.043995,8.2

    228865298,190.747189,-4.049332,7.7

    c173/c6:

    212667055,211.29454,-9.048507,8.53

    c185/c5:

    211811597,134.19162,17.48135,7.48

    Posted

  • ajamyajax by ajamyajax

    Ivan and Hans Martin,

    Since there are many possible cross-matches with our finds here, how about we do this the easy way? I just wrote a python script that reads through our PH campaign 10 list of periodic candidates, RR Lyrae, etc and produces a list of those matches. There were 311 just for c17a/c10, the first three here for example:

    229024057,190.850556,-1.0188,12.93

    228954821,190.401463,-2.306612,14.44

    228991609,187.586162,-1.642388,13.94

    So I could automatically generate such PH lists for all c17/c18 request options, and send those to the K2 office as periodic candidates, possible RR Lyrae etc. for consideration. Any more specific lists can be done with anyone else interested in just those targets.

    What do you think?

    Posted

  • zoo3hans by zoo3hans in response to ajamyajax's comment.

    Dear Mark

    I think this is a good idea. Please go ahead and send them your list. It would be a pity to miss our candidates. Although for the RR_Lyrae ii's probably not needed since one campaign coveres them well enough in my opinion.

    Posted

  • ajamyajax by ajamyajax in response to zoo3hans's comment.

    Dear Hans Martin,

    Ok, makes sense about the RR Lyrae. Some are contamination and those could be cleared up perhaps. But I believe the periodic candidates are of most interest to us so will stick with those, the single transits, DN candidates etc. Also can add SF's and JKD's and anyone else who posted these kind of observations. Unless Ivan or the others don't want to do this of course.

    Posted

  • Dolorous_Edd by Dolorous_Edd

    I am perfectly fine with this

    Posted

  • Shellface by Shellface

    I don't know if NASA will be expecting so many targets, but I suppose it can't hurt to try it. So yeah, have at it.

    From my understanding there is a substantial probability that K2 will not have enough fuel for C17, so we should not be surprised if the mission ends before these observations can be carried out. Still, any and all K2 data is valuable, and C17/18 are not off the table yet.

    Fuel limitations notwithstanding, 60-70 days of C6 overlap sounds enticing. There are plenty of stars that could be reobserved there. A C18-C7 overlap or even a second reobservation of C5 are also both very interesting possibilites.

    Posted

  • Artman40 by Artman40

    So did emergency mode in C9 terminate 3-4 potential campaigns?

    Posted

  • ajamyajax by ajamyajax in response to Shellface's comment.

    The numbers occurred to me also, so I asked about that but no reply just yet. You are of course welcome to work up another splendid summary as you did before. 😃

    Posted

  • ajamyajax by ajamyajax

    Ok, I heard back from Dr. Geert at the K2 office and what they would like to see first is a reason to prefer one c17/c18 field placement over another.
    The larger list of targets are welcome later after these placements have been decided. So any ideas you all have with this will be helpful. What I'll do for round one then is review our observed candidates that overlap, but summarize them by likely EB's to speculative single transits. And with that hopefully will have a short list to send of better field placement ideas from our point of view anyway.

    Posted

  • ajamyajax by ajamyajax

    Here are the overlapping stellar target candidates that were selected so far using k2fov 7.0.0. Will post campaign 16 when archive data available. And we helped with some summary information: pc, eb, st, and other totals observed in each field option.

    c17: 14926 count from c6

    c18: 22243 count from c5

    c19: 238 count from c3

    c19: 15782 count from c12

    https://www.dropbox.com/s/l6qth1w1drr6de0/c17_c18_c19_k2fov_700.zip?dl=0

    From: https://keplergo.arc.nasa.gov/fields-selected-for-k2-campaigns-17-18-and-19.html

    Update: I ran the 22243 c5 in c18 stellar targets found by k2fov through this program again for c16. It found 6413 targets that overlap both:

    https://www.dropbox.com/s/ebyh2ocavugin0w/c5_in_c16_and_c18.zip?dl=0

    Posted

  • Shellface by Shellface

    Very good to see that the Kepler team are on the overlap train. The total overlap between C18 and C5 makes me very happy.

    I am hopeful that there will be enough spacecraft fuel to reach beyond C16. Fingers crossed!

    Posted

  • ajamyajax by ajamyajax in response to Shellface's comment.

    Yes indeed about the spacecraft, and glad you are pleased about c18 too. Do you want to talk to Andrew and Tabby if interested in another proposal? You are certainly welcome to take the lead on this as before.

    Posted

  • Shellface by Shellface in response to ajamyajax's comment.

    It will be a lot of work, but seeing how well the Cycle 5 (C14-16) proposal went, I would be up for it. There is also the possibility of a C16 DDT proposal, suggested by Andrew.

    Posted