# Latest **URL:** https://www.rubin.community/latest.md?page=2 [Latest](https://www.rubin.community/latest.md) · [Categories](https://www.rubin.community/categories.md) · [Tags](https://www.rubin.community/tags.md) **Page:** 3 --- ## [DP2 photometry for AGN](https://www.rubin.community/t/dp2-photometry-for-agn/12672)
**Author:** [@mmarculewicz](https://www.rubin.community/u/mmarculewicz)\ **Replies:** 9\ **Last updated:** [September 18, 2026, 7:22pm UTC](https://www.rubin.community/t/dp2-photometry-for-agn/12672 "2026-09-18T19:22:08Z")
Hi, I’ve been working on DP2, searching for light curves of AGN. I checked known AGN from Boutsia et al. (2009) using the official DP2 tutorial. Variability-selected AGN in ECDFS from Boutsia et al. (2009) I found t… --- ## [Request for IDAC OIDC](https://www.rubin.community/t/request-for-idac-oidc/11641)
**Author:** [@alec\_b612](https://www.rubin.community/u/alec_b612)\ **Replies:** 19\ **Last updated:** [September 18, 2026, 7:01pm UTC](https://www.rubin.community/t/request-for-idac-oidc/11641 "2026-09-18T19:01:02Z")
@rra @frossie Hi Rubin team, We reviewed RTN-003 and related authentication/authorization guidance (including DMTN-253), and we’re implementing our cutout workflow to be compliant for proprietary Rubin data access as a… --- ## [Community forum migration coming @ September 24th 2026](https://www.rubin.community/t/community-forum-migration-coming-september-24th-2026/12695)
**Author:** [@frossie](https://www.rubin.community/u/frossie)\ **Replies:** 3\ **Last updated:** [September 17, 2026, 11:36pm UTC](https://www.rubin.community/t/community-forum-migration-coming-september-24th-2026/12695 "2026-09-17T23:36:14Z")
On September 24th, community.lsst.org will go into read-only mode for the day because major changes are afoot! When work is complete, the forum will be available at a new domain: rubin.community Links to content on co… --- ## [Rubin Science Assembly, Thu 17 Sep 2026: Rubin DP2 at CosmoHub](https://www.rubin.community/t/rubin-science-assembly-thu-17-sep-2026-rubin-dp2-at-cosmohub/12691)
**Author:** [@jeffcarlin](https://www.rubin.community/u/jeffcarlin)\ **Replies:** 1\ **Last updated:** [September 17, 2026, 10:42pm UTC](https://www.rubin.community/t/rubin-science-assembly-thu-17-sep-2026-rubin-dp2-at-cosmohub/12691 "2026-09-17T22:42:49Z")
All are welcome to attend the Rubin Science Assemblies: weekly virtual sessions that focus on learning to use the Rubin data products, pipelines, and services. Date: Sep 17 2026, 9am Pacific Daylight Time (UTC-7; 2026-0… --- ## [DP2 coadd sigma and PSF extraction](https://www.rubin.community/t/dp2-coadd-sigma-and-psf-extraction/12701)
**Author:** [@Debasish\_Hazarika](https://www.rubin.community/u/Debasish_Hazarika)\ **Replies:** 2\ **Last updated:** [September 17, 2026, 6:22pm UTC](https://www.rubin.community/t/dp2-coadd-sigma-and-psf-extraction/12701 "2026-09-17T18:22:45Z")
Hi Rubin team & the community, I have two questions on extracting the sigma & PSF images for a DP2 cutout: Sigma / correlated noise: for a band (say ‘g’) I am taking a 324 × 324 pixel region from .variance.array, set… --- ## [EDP2: blendedness is negative for ~85% of primary objects, and mostly unflagged](https://www.rubin.community/t/edp2-blendedness-is-negative-for-85-of-primary-objects-and-mostly-unflagged/12616)
**Author:** [@lrspeiser](https://www.rubin.community/u/lrspeiser)\ **Replies:** 5\ **Last updated:** [September 17, 2026, 5:34pm UTC](https://www.rubin.community/t/edp2-blendedness-is-negative-for-85-of-primary-objects-and-mostly-unflagged/12616 "2026-09-17T17:34:54Z")
Forgive my post if I just completely messed something up! In the EDP2 Object catalog, blendedness is negative far more often and far more extremely than in DP1. It is defined as a flux fraction, so I expected it on \[0,… --- ## [Efficiently Switching Between DP1 and DP2 Pipeline Versions](https://www.rubin.community/t/efficiently-switching-between-dp1-and-dp2-pipeline-versions/12640)
**Author:** [@anindya\_26](https://www.rubin.community/u/anindya_26)\ **Replies:** 9\ **Last updated:** [September 17, 2026, 3:50pm UTC](https://www.rubin.community/t/efficiently-switching-between-dp1-and-dp2-pipeline-versions/12640 "2026-09-17T15:50:10Z")
Hi, I wanted to ask if there is an efficient way to toggle between the DP1 and DP2 tutorial environments without having to log in and out each time. Since DP1 and DP2 are currently running different versions of the LSS… --- ## [Adding information about year 1 baseline statistics to the survey strategy website](https://www.rubin.community/t/adding-information-about-year-1-baseline-statistics-to-the-survey-strategy-website/11780)
**Author:** [@mschwamb](https://www.rubin.community/u/mschwamb)\ **Replies:** 9\ **Last updated:** [September 15, 2026, 9:41pm UTC](https://www.rubin.community/t/adding-information-about-year-1-baseline-statistics-to-the-survey-strategy-website/11780 "2026-09-15T21:41:14Z")
Hi, I’ve been getting questions about expectations for how much data will taken per field in Year 1 split per filter for observing proposals. This information is easy to extract if you know how to get the rubin\_sim sim… --- ## [2026 Schweickart Prize $10K award - Open for applications](https://www.rubin.community/t/2026-schweickart-prize-10k-award-open-for-applications/10967)
**Author:** [@Danicaremy](https://www.rubin.community/u/Danicaremy)\ **Replies:** 7\ **Last updated:** [September 15, 2026, 8:12pm UTC](https://www.rubin.community/t/2026-schweickart-prize-10k-award-open-for-applications/10967 "2026-09-15T20:12:03Z")
It would be wonderful if you could help spread the word about this year’s application cycle for the Schweickart Prize by sharing it with graduate students or recent grads who might be strong applicants for this unique aw… --- ## [2027 Schweickart Prize $10K award - Open for Applications](https://www.rubin.community/t/2027-schweickart-prize-10k-award-open-for-applications/12693)
**Author:** [@Danicaremy](https://www.rubin.community/u/Danicaremy)\ **Replies:** 0\ **Last updated:** [September 15, 2026, 8:10pm UTC](https://www.rubin.community/t/2027-schweickart-prize-10k-award-open-for-applications/12693 "2026-09-15T20:10:36Z")
If you are a graduate student or know someone who is, please spread the word about this year’s application cycle for the prize! Learn more here https://www.schweickartprize.org/for-students Applications for the 2027 S… --- ## [ALeRCE LSST stamp classifier tags quasars as variable stars](https://www.rubin.community/t/alerce-lsst-stamp-classifier-tags-quasars-as-variable-stars/12430)
**Author:** [@kkruszynska](https://www.rubin.community/u/kkruszynska)\ **Replies:** 4\ **Last updated:** [September 15, 2026, 7:57pm UTC](https://www.rubin.community/t/alerce-lsst-stamp-classifier-tags-quasars-as-variable-stars/12430 "2026-09-15T19:57:50Z")
Hello, For the past couple of weeks, since the official start of LSST, I have been reviewing the results of the ALeRCE stamp classifier (Stamp Classifier Rubin Beta, 20260421). I noticed that some objects tagged as “VS”… --- ## [Table upload of objectId on RSP problem](https://www.rubin.community/t/table-upload-of-objectid-on-rsp-problem/12667)
**Author:** [@jgizis](https://www.rubin.community/u/jgizis)\ **Replies:** 3\ **Last updated:** [September 14, 2026, 9:03pm UTC](https://www.rubin.community/t/table-upload-of-objectid-on-rsp-problem/12667 "2026-09-14T21:03:38Z")
This might a version or return of a problem mentioned on community some years ago and marked as solved. I am getting a problem where the (huge!) integers used for objectIds are not read properly if I upload them as a s… --- ## [Empty psfMagErr in objectForcedSource for DP2](https://www.rubin.community/t/empty-psfmagerr-in-objectforcedsource-for-dp2/12458)
**Author:** [@scharney](https://www.rubin.community/u/scharney)\ **Replies:** 4\ **Last updated:** [September 14, 2026, 8:35pm UTC](https://www.rubin.community/t/empty-psfmagerr-in-objectforcedsource-for-dp2/12458 "2026-09-14T20:35:55Z")
Hi folks! I’m currently using the object catalog in EDP2, particularly the light curves in objectForcedSource. I’m a bit confused because some objects have ~40 epochs in their light curves, with ~30 filled psfMag values… --- ## [R.U.N. Student Highlight - Student RUNdown](https://www.rubin.community/t/r-u-n-student-highlight-student-rundown/12293)
**Author:** [@ChristinaAdair](https://www.rubin.community/u/ChristinaAdair)\ **Replies:** 3\ **Last updated:** [September 14, 2026, 6:50pm UTC](https://www.rubin.community/t/r-u-n-student-highlight-student-rundown/12293 "2026-09-14T18:50:41Z")
Rubin Undergraduate Network - Student RUNdown Student: Virginia J. Major: Astrophysics Research Project A Long Tidal Feature Extending from a Low-Redshift Galaxy Revealed in Rubin Data Preview One Imaging About the R… --- ## [Summit technical progress (week ending 2026-09-11)](https://www.rubin.community/t/summit-technical-progress-week-ending-2026-09-11/12676)
**Author:** [@bstalder](https://www.rubin.community/u/bstalder)\ **Replies:** 0\ **Last updated:** [September 11, 2026, 8:23pm UTC](https://www.rubin.community/t/summit-technical-progress-week-ending-2026-09-11/12676 "2026-09-11T20:23:49Z")
Following up on Bob Blum’s note last week about power, cooling and communications, here’s a closer look at what the team on Cerro Pachón has been doing and where things stand as of September 11. Although we are still off… --- ## [AU IDAC OIDC Client Registration Details](https://www.rubin.community/t/au-idac-oidc-client-registration-details/12436)
**Author:** [@james.tocknell](https://www.rubin.community/u/james.tocknell)\ **Replies:** 4\ **Last updated:** [September 11, 2026, 5:56pm UTC](https://www.rubin.community/t/au-idac-oidc-client-registration-details/12436 "2026-09-11T17:56:55Z")
Hi All Can the client\_id/client\_secret for a test OIDC client at the Australian IDAC be created. I believe the following covers all the required details: Client name: AU IDAC (test) Grant type: authorization\_code Scope… --- ## [Request for information re MOA data sharing](https://www.rubin.community/t/request-for-information-re-moa-data-sharing/11968)
**Author:** [@pcowan](https://www.rubin.community/u/pcowan)\ **Replies:** 23\ **Last updated:** [September 10, 2026, 11:39pm UTC](https://www.rubin.community/t/request-for-information-re-moa-data-sharing/11968 "2026-09-10T23:39:23Z")
Hello @rra, Our cloud team need the following information to provide the Rubin team a OIDC Redirect URI. : client\_id = “oidc-client-id” client\_secret = “oidc-client-secret” oidc\_issuer … --- ## [Request for new OIDC Client Credential](https://www.rubin.community/t/request-for-new-oidc-client-credential/12593)
**Author:** [@eric-el-tan](https://www.rubin.community/u/eric-el-tan)\ **Replies:** 2\ **Last updated:** [September 10, 2026, 11:38pm UTC](https://www.rubin.community/t/request-for-new-oidc-client-credential/12593 "2026-09-10T23:38:46Z")
Request for new OIDC Client Credentials (client\_id / client\_secret) for Production Organization & Contact Information Organization Name: University of Auckland - Faculty of Science - Vera Rubin Data Sharing API Primary … --- ## [Data rights request — multiband light-curve anomaly search (existing RSP account)](https://www.rubin.community/t/data-rights-request-multiband-light-curve-anomaly-search-existing-rsp-account/12665)
**Author:** [@omegaflow](https://www.rubin.community/u/omegaflow)\ **Replies:** 1\ **Last updated:** [September 10, 2026, 9:30pm UTC](https://www.rubin.community/t/data-rights-request-multiband-light-curve-anomaly-search-existing-rsp-account/12665 "2026-09-10T21:30:54Z")
Hello, I have an RSP account (CILogon via GitHub) but no data-rights role; the registry reports “You do not have any current roles”. I would like to request data rights. I am an independent researcher doing non-profit … --- ## [diaObject summary stats are only provided for the observed filter](https://www.rubin.community/t/diaobject-summary-stats-are-only-provided-for-the-observed-filter/11991)
**Author:** [@genghisken](https://www.rubin.community/u/genghisken)\ **Replies:** 8\ **Last updated:** [September 10, 2026, 1:38am UTC](https://www.rubin.community/t/diaobject-summary-stats-are-only-provided-for-the-observed-filter/11991 "2026-09-10T01:38:26Z")
Each time we receive an alert, we get summary stats with the diaObject relating to the current band only. All the other bands are NaN or zero (see r-band example below). Is there a reason for this? I assume this is a spe… --- ## [Sky-estimation box size used for DP2 deep coadds](https://www.rubin.community/t/sky-estimation-box-size-used-for-dp2-deep-coadds/12455)
**Author:** [@ggolini](https://www.rubin.community/u/ggolini)\ **Replies:** 4\ **Last updated:** [September 10, 2026, 1:35am UTC](https://www.rubin.community/t/sky-estimation-box-size-used-for-dp2-deep-coadds/12455 "2026-09-10T01:35:40Z")
Hello community! I am trying to understand to which extent we can use LSST DP2 data to study intracluster light and I am trying to asses the impact of sky subtraction on measurements taken at large cluster-centric radii… --- ## [Join us for a full day Rubin workshop at the AAS, Sun Jan 10 2027](https://www.rubin.community/t/join-us-for-a-full-day-rubin-workshop-at-the-aas-sun-jan-10-2027/12659)
**Author:** [@MelissaGraham](https://www.rubin.community/u/MelissaGraham)\ **Replies:** 0\ **Last updated:** [September 9, 2026, 8:10pm UTC](https://www.rubin.community/t/join-us-for-a-full-day-rubin-workshop-at-the-aas-sun-jan-10-2027/12659 "2026-09-09T20:10:57Z")
If you’re planning to attend the 249th American Astronomical Society meeting in January 2027 in Salt Lake City UT, consider joining us for a full-day introductory AAS Workshop on Rubin data analysis. This workshop will … --- ## [Invitation to submit your AAS 2027 abstract to the Rubin special session (talks and posters; due Oct 5)](https://www.rubin.community/t/invitation-to-submit-your-aas-2027-abstract-to-the-rubin-special-session-talks-and-posters-due-oct-5/12658)
**Author:** [@MelissaGraham](https://www.rubin.community/u/MelissaGraham)\ **Replies:** 0\ **Last updated:** [September 9, 2026, 7:35pm UTC](https://www.rubin.community/t/invitation-to-submit-your-aas-2027-abstract-to-the-rubin-special-session-talks-and-posters-due-oct-5/12658 "2026-09-09T19:35:06Z")
Update: the abstract deadline is now Oct 5 2026. If you’re submitting an abstract for the 249th American Astronomical Society meeting in January 2027, and your work uses Rubin data products derived from LSSTCam observa… --- ## [Diasources without any Source](https://www.rubin.community/t/diasources-without-any-source/12623)
**Author:** [@ljones](https://www.rubin.community/u/ljones)\ **Replies:** 6\ **Last updated:** [September 8, 2026, 11:55pm UTC](https://www.rubin.community/t/diasources-without-any-source/12623 "2026-09-08T23:55:22Z")
Is it expected that there would be Diasources reported for which there is no corresponding Source, even though the expected magnitude is above the “magLim” value for the visit detector? I ran a TAP query on the data.lss… --- ## [Account Approval Help](https://www.rubin.community/t/account-approval-help/12639)
**Author:** [@shkahn](https://www.rubin.community/u/shkahn)\ **Replies:** 8\ **Last updated:** [September 8, 2026, 11:27pm UTC](https://www.rubin.community/t/account-approval-help/12639 "2026-09-08T23:27:17Z")
Dear RSP Support Team, I am writing to check on the status of my account application for the Rubin Science Platform. I submitted my onboarding profile over two weeks ago, but my account has not yet been activated and a… --- ## [How is bboxSize determined for alerts?](https://www.rubin.community/t/how-is-bboxsize-determined-for-alerts/12543)
**Author:** [@carrieholt](https://www.rubin.community/u/carrieholt)\ **Replies:** 6\ **Last updated:** [September 8, 2026, 10:52pm UTC](https://www.rubin.community/t/how-is-bboxsize-determined-for-alerts/12543 "2026-09-08T22:52:28Z")
I’m trying to understand how the detection footprint of a DiaSource gets determined, and how that gets translated to the bboxSize for the alert. I can’t seem to find the code. For context, I am working with comet data i… --- ## [Power, cooling, communications](https://www.rubin.community/t/power-cooling-communications/12629)
**Author:** [@rblum5](https://www.rubin.community/u/rblum5)\ **Replies:** 0\ **Last updated:** [September 5, 2026, 3:52pm UTC](https://www.rubin.community/t/power-cooling-communications/12629 "2026-09-05T15:52:17Z")
Dear all, apologies for the late message. Much of the team was at SLAC this week (on line or in person) for our annual joint agency review, and I lost track of messaging. As expected, the team did a great job at the revi… --- ## [Observing Opportunities via Rubin In-Kind Program in NOIRLab Semester 2027A Call for Proposals](https://www.rubin.community/t/observing-opportunities-via-rubin-in-kind-program-in-noirlab-semester-2027a-call-for-proposals/12622)
**Author:** [@steven.margheim](https://www.rubin.community/u/steven.margheim)\ **Replies:** 0\ **Last updated:** [September 4, 2026, 7:41pm UTC](https://www.rubin.community/t/observing-opportunities-via-rubin-in-kind-program-in-noirlab-semester-2027a-call-for-proposals/12622 "2026-09-04T19:41:27Z")
The NOIRLab Semester 2027A Call for Proposals includes several observing opportunities provided through the Rubin In-Kind Program. Key Information for Proposers: Available Facilities: Time is available across multipl… --- ## [Weather impact on Ocean strategy](https://www.rubin.community/t/weather-impact-on-ocean-strategy/12556)
**Author:** [@sdcorle1](https://www.rubin.community/u/sdcorle1)\ **Replies:** 7\ **Last updated:** [September 4, 2026, 5:00pm UTC](https://www.rubin.community/t/weather-impact-on-ocean-strategy/12556 "2026-09-04T17:00:28Z")
Given the recent weather issues in Chile, has there been any consideration for the deep Ocean season for EDFS\_a and \_b, which was planned for the period of August-September, 2026 through March-April, 2027? --- ## [Resource Needs: an opportunity to receive new in-kind contributions](https://www.rubin.community/t/resource-needs-an-opportunity-to-receive-new-in-kind-contributions/8036)
**Author:** [@rblum5](https://www.rubin.community/u/rblum5)\ **Replies:** 1\ **Last updated:** [September 4, 2026, 3:18pm UTC](https://www.rubin.community/t/resource-needs-an-opportunity-to-receive-new-in-kind-contributions/8036 "2026-09-04T15:18:40Z")
In preparation for operations and early science, Rubin Observatory would like to consider any outstanding resources needed by those within the Rubin Community to meet their goals. Rubin is issuing a rolling call for exi… [Previous page](https://www.rubin.community/latest.md?page=1) [Next page](https://www.rubin.community/latest.md?page=3)