Date: Fri, 4 May 2018 01:08:58 +0200 From: =?utf-8?Q?Jos=C3=A9_S=C3=A1nchez-Gallego?= Subject: Re: [sloan-25mlog 4055] Re: 2.5m obslog 20180501 (SJD 58240) --5aeb9691_3352255a_e36 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hi all, Sorry for the late notice. I tagged 3.8.1 without the computed offsets bu= t with the fix to centre up. If you want to try it, just restarting the g= uider to the current version should give you 3.8.1. Otherwise we can try = it tomorrow. Cheers, Jos=C3=A9 On May 3, 2018, 00:21 +0200, Kaike Pan , wrote: > The comparison is between v3=5F7 and v3=5F8dev. I don=E2=80=99t know ho= w v3=5F7 and v3=5F8.0 compare each other. But > from my previous experience, they seems guide equally well. Yes, we can= use v3=5F8.0 if you prefer (But I > thought I have the center-up issue with v3=5F8.0, do we=3F). > > -Kaike > > > On May 2, 2018, at 4:11 PM, Jos=C3=A9 S=C3=A1nchez-Gallego wrote: > > > > Hi Renbin, Kaike, all, > > > > Sorry for chiming in late. With =E2=80=9Cold=E2=80=9D guider are we t= alking about v3=5F7 (the old old fitting code) or 3.8.0 (the one with the= new fitting code but without the slow slews)=3F > > > > Unless there is a good reason to doubt the new fitting code I=E2=80=99= d prefer to keep using 3.8.0 now that the pointing model has improved. > > > > Cheers, > > > > Jos=C3=A9 > > > > On May 2, 2018, 21:34 +0200, Renbin Yan , wrot= e: > > > Hi Kaike, > > > > > > Let's use the old guider for MaNGA this run. > > > > > > best, > > > -renbin > > > > > > On Wed, May 2, 2018 at 2:33 PM, Kaike Pan wro= te: > > > > Considering that v3=5F8dev updates slower (even after reduce the = SlewAdvTime), has higher correction oscillations, > > > > that MaNGA requires better guiding, and that we are not in engine= ering time, Renbin and/or other MaNGA team need > > > > to decide which version of guider they want to use for the coming= dark run. If they decide to use the old tested version, > > > > let=E2=80=99s work on the guider code, and test the new version i= n coming engineering run. > > > > > > > > -Kaike > > > > > > > > > > > > > On May 2, 2018, at 12:07 PM, Conor Sayres wr= ote: > > > > > > > > > > v3=5F8dev uses computed offsets, which behave like slews. Compu= ted offsets are how we should be guiding... > > > > > > > > > > I would like to try continue using v3=5F8dev, but reduce the Sl= ewAdvTime from 3.5 to 1.5 seconds in the TCC=E2=80=99s tune block. I thin= k this will speed up the guide loop significantly. > > > > > > > > > > If you notice a high amount of out of closed loop instances, th= en I think change SlewAdvTime back to 3.5 seconds, and run v3=5F8 (rather= than v3=5F7). > > > > > > > > > > In the coming weeks I=E2=80=99m going to be modifying the TCC t= o perform all guide offsets (ra/dec rotation, mirrors, etc) to run in par= allel, this will also speed up the guide loop significantly. > > > > > > > > > > But ultimately up to you guys. > > > > > > > > > > > > > > > On May 2, 2018, at 10:34 AM, Kaike Pan wr= ote: > > > > > > > > > > > =46or your information, guiding with the old guider v3=5F7 wa= s at high altitude, between > > > > > > 81 to 84.5. If the old version is indeed better (since we onl= y compared two versions > > > > > > on one cartridges, the statement is not conclusive), I think = that we should use the > > > > > > old version for MaNGA, and intend to do so. If MaNGA team, Jo= se and Conor feel > > > > > > that we should use the new one, v3=5F8dev, please let us know= . MaNGA starts tonight. > > > > > > > > > > > > -Kaike > > > > > > > > > > > > > > > > > > > > > > > > > On May 2, 2018, at 5:03 AM, kgrabowski=40apo.nmsu.edu wrote= : > > > > > > > > > > > > > > > > > > > > > It looks like the older guider corrections oscillate less t= hroughout the > > > > > > > plate than the newer one, and may have smaller errors. > > > > > > > -------- > > > > > > > > > > > > > > > > =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F > > > > > > > > Logs of Nightly APO Activities > > > > > > > https://trac.sdss.org/tracmailman/browser/private/sloan-2= 5mlog/index.html > > > > > > > > > > > > > > > =5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F > > > > > > > Logs of Nightly APO Activities > > > > > > https://trac.sdss.org/tracmailman/browser/private/sloan-25m= log/index.html > > > > > > > > > > > > =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F > > > > > > Logs of Nightly APO Activities > > > > > https://trac.sdss.org/tracmailman/browser/private/sloan-25mlo= g/index.html > > > > > > > > > > > > =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F > > > Logs of Nightly APO Activities > > https://trac.sdss.org/tracmailman/browser/private/sloan-25mlog/inde= x.html > --5aeb9691_3352255a_e36 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Hi all, Sorry for the late notice. I tagged 3.8.1 without the computed offsets bu= t with the fix to centre up. If you want to try it, just restarting the g= uider to the current version should give you 3.8.1. Otherwise we can try = it tomorrow. Cheers, Jos=C3=A9 On May 3, 2018, 00:21 +0200, Kaike Pan , wrote= : The comparison is between v3=5F7 and v3=5F8= dev. I don=E2=80=99t know how v3=5F7 and v3=5F8.0 compare each other. But= from my previous experience, they seems guide equally well. Yes, we can u= se v3=5F8.0 if you prefer (But I thought I have the center-up issue with v3=5F8.0, do we=3F). -Kaike On May 2, 2018, at 4:11 PM, Jos=C3=A9 S=C3=A1= nchez-Gallego wrote: Hi Renbin, Kaike, all, Sorry for chiming in late. With =E2=80=9Cold=E2=80=9D guider are we talki= ng about v3=5F7 (the old old fitting code) or 3.8.0 (the one with the new= fitting code but without the slow slews)=3F Unless there is a good reason to doubt the new fitting code I=E2=80=99d p= refer to keep using 3.8.0 now that the pointing model has improved.= Cheers, Jos=C3=A9 On May 2, 2018, 21:34 +0200, Renbin Yan , wr= ote: Hi Kaike, Let's use the old guider for MaNGA this run. best, -renbin On Wed, May 2, 2018 at 2:33 PM, Kaike Pan wro= te: Considering that v3=5F8dev updates slower (= even after reduce the SlewAdvTime), has higher correction oscillations, that MaNGA requires better guiding, and that we are not in engineering ti= me, Renbin and/or other MaNGA team need to decide which version of guider they want to use for the coming dark ru= n. If they decide to use the old tested version, let=E2=80=99s work on the guider code, and test the new version in coming= engineering run. -Kaike On May 2, 2018, at 12:07 PM, Conor Sayres &= lt;csayres=40uw.edu> wrote: v3=5F8dev uses computed offsets, which behave like slews. Computed offset= s are how we should be guiding... I would like to try continue using v3=5F8dev, but reduce the SlewAdvTime = from 3.5 to 1.5 seconds in the TCC=E2=80=99s tune block. I think this wil= l speed up the guide loop significantly. If you notice a high amount of out of closed loop instances, then I think= change SlewAdvTime back to 3.5 seconds, and run v3=5F8 (rather than v3=5F= 7). In the coming weeks I=E2=80=99m going to be modifying the TCC to perform = all guide offsets (ra/dec rotation, mirrors, etc) to run in parallel, thi= s will also speed up the guide loop significantly. But ultimately up to you guys. On May 2, 2018, at 10:34 AM, Kaike Pan wrote:= =46or your information, guiding with the ol= d guider v3=5F7 was at high altitude, between 81 to 84.5. If the old version is indeed better (since we only compared t= wo versions on one cartridges, the statement is not conclusive), I think that we shou= ld use the old version for MaNGA, and intend to do so. If MaNGA team, Jose and Conor= feel that we should use the new one, v3=5F8dev, please let us know. MaNGA star= ts tonight. -Kaike On May 2, 2018, at 5:03 AM, kgrabowski=40ap= o.nmsu.edu wrote: It looks like the older guider corrections oscillate less throughout the plate than the newer one, and may have smaller errors. -------- =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F Logs of Nightly APO Activities =5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F= =5F=5F=5F=5F=5F=5F Logs of Nightly APO Activities