Approved DDT Proposals
The table below lists proposals approved for Director's Discretionary Time (DDT) on the VLA and VLBA. The following is provided for each approved proposal: PI name, proposal ID, proposal title, date approved, maximum hours approved, and proprietary period in months.
For an approved DDT proposal, the Proposal Finder Tool will have access to its authors, title, abstract, and approved hours
| PI | Proposal ID | Proposal Title | Date Approved | Hours Approved | Proprietary Period |
| Tao An | VLA/25B-410 | ultra-long GRB 251129A: central-engine shutdown or external energy injection | 01/21/2026 | 3.4 | 6 |
| Mark Claussen | VLA/25B-409 | The Current Water/OH Maser Spectra from the Water-Fountain PPNe IRAS16342-3814 | 01/15/2026 | 3 | 6 |
| Elisa Amenta | VLA/25B-406 | Radio Emission and Wind Feedback in the SUBWAYS Sample - completing the sample | 01/02/2026 | 1 | 6 |
| Genevieve Schroeder | VLA/25B-407 | The Radio Bright SN2025shf: Off-axis Jet or Circumstellar Material Interaction? | 12/30/2025 | 0.8 | 6 |
| Carl Ingebretsen | VLA/25B-405 | Low-Frequency Characterization of Disk and Planet Hosting System WISPIT-2 | 12/17/2025 | 5 | 6 |
| Tao An | VLA/25B-403 | ultra-long GRB 251129A: central-engine shutdown or external energy injection | 12/11/2025 | 4.5 | 6 |
| Dejan Urosevic | VLA/25B-401 | Radio continuum emission of non-radiative filaments in Cygnus Loop - v2 | 12/04/2025 | 17 | 6 |
| Lorena Hernandez-Garcia | VLA/25B-390 | Continued VLA monitoring of the nuclear transient AT20201hdr | 11/05/2025 | 7 | 6 |
| Poonam Chandra | VLA/25B-389 | Searching for radio emission from candidate supernovae for high energy neutrinos | 10/31/2025 | 1.42 | 6 |
| Dana Baylis-Aguirre | VLBA/25B-387 | Exploring the dynamic inner circumstellar environment of Mira variable, V CVn | 10/24/2025 | 1 | 6 |
| Adam Lanman | VLA/25B-384 | Localizing the Low-DM FRB 20250906A with realfast | 10/14/2025 | 4 | 6 |
| Yi Feng | VLA/25B-378 | Revealing the nature of the persistent radion source FRB 20240114A | 09/13/2025 | 3 | 6 |
| Adam Deller | VLA/25B-372 | Confirming the JWST-identified host galaxy of FRB 20210912A | 08/26/2025 | 0.5 | 6 |
| Anna Ho | VLA/25B-366 | SN2025mkn: A Likely Lensed Fast Transient at High Redshift | 08/13/2025 | 2.5 | 6 |
| Matteo Fanelli | VLA/25A-505 | The duty cycle of restarted giant radio galaxies: a continuation | 07/30/2025 | 8 | 6 |
| Silvia Belladitta | VLA/25A-499 | Pushing the quasar redshift frontier with Euclid and VLA | 07/18/2025 | 11.6 | 6 |
| Pikky Atri | VLBA/25A-501 | Establishing the Galactic or extragalactic nature of a new, curious transient | 07/14/2025 | 14 | 6 |
| Thomas Russell | VLA/25A-496 | Measuring the jet speed of GS 1826-238 with type-I X-ray bursts | 07/09/2025 | 7.5 | 6 |
| Wouter Vlemmings | VLA/25A-494 | Confirming unexpected temperatures in the outer atmosphere of R Leo | 07/01/2025 | 2.5 | 6 |
| Noa Grollimund | VLA/25A-491 | Superluminal jets from the new transient MAXI J1744-294? | 06/26/2025 | 4.0 | 6 |
| Raphael Baer-Way | VLA/25A-488 | VLA followup of the intriguing X-ray bright calcium-strong transient SN 2025coe | 06/13/2025 | 1.5 | 6 |
| Itai Sfaradi | VLA/25A-483 | The peculiar radio emission from the first radio bright off-nuclear TDE | 05/28/2025 | 2.0 | 6 |
| Myles Sherman | VLA/25A-481 | Confirming Radio Detection of Magnetar SGR J0418+5729 | 05/26/2025 | 1.4 | 6 |
| Joseph Michail | VLBA/25A-480 | Localizing and Classifying the Structure of MAXI J1744-292 with the VLBA | 05/22/2025 | 8.0 | 6 |
| Joseph Michail | VLA/25A-476 | Monitoring the Radio SED of a New Transient within 20" of SgrA* | 05/21/2025 | 6.72 | 6 |
| Murray Brightman | VLA/25A-475 | Radio follow-up of a fast X-ray transient candidate discovered by NuSTAR | 05/19/2025 | 1.5 | 6 |
| Michael Rugel | VLA/25A-473 | Deep OH absorption observations in the Galactic plane | 05/15/2025 | 16.0 | 6 |
| Megan Lewis | VLA/25A-471 | IRAS18199-1452 A Possible Water Fountain in a Nascent Pre-planetary Nebula | 05/13/2025 | 1.0 | 6 |
| Anna Ho | VLA/25A-470 | AT2025inl: A Candidate Relativistic Stellar Explosion | 05/09/2025 | 1.0 | 6 |
| Deanne Coppejans | VLA/25A-468 | Constraining the Mass-loss of the Closest Pair-Instability Supernova Candidate | 05/07/2025 | 8.5 | 6 |
| Tao An | VLA/25A-467 | Radio Follow-up of the Peculiar Fast X-ray Transient EP250427a | 05/01/2025 | 6.0 | 6 |
| Walter Golay | VLA/25A-460 | Radio Observations of a Pair-Instability Supernova | 04/16/2025 | 1.5 | 6 |
| Antonio Rodriguez | VLA/25A-452 | A 27-sec Spinning White Dwarf: Establishing a Class of Rapid Propellers | 04/10/2025 | 1.0 | 6 |
| Jesse Miller | VLA/25A-450 | Pathway to the Plane: A Pilot HI Study of VLASS Galactic Transient Candidates | 04/04/2025 | 4.0 | 6 |
| Tao An | VLA/25A-435 | VLA Study of the First Extragalactic FRB with an X-ray Counterpart |
04/03/2025 | 7.2 | 6 |
| Mattias Lazda | VLA/25A-434 | A search for incoherent radio emission in the field of a local Universe FRB |
04/03/2025 | 8.52 | 6 |
| Anna Ho | VLA/25A-429 | AT2025cez: A Candidate Relativistic Stellar Explosion | 03/25/2025 | 4.75 | 6 |
| Jian Jiang | VLA/25A-427 | Disclosing the Final Activities of Fast Blue Luminous Transients WFST0533buha | 03/21/2025 | 3.44 | 6 |
| Cuiyuan Dai | VLA/25A-421 | VLA Observations of the Radio Afterglow of a soft x-ray transient EP250302a |
03/06/2025 | 4.06 | 6 |
| Giulia Gianfagna | VLA/25A-419 | A collapsar origin for the X-ray transient EP241021a | 03/04/2025 | 2.5 | 6 |
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