Skip to main content

Director's Discretionary Time Observations

Director’s Discretionary Time (DDT) can be requested for time-critical observations that cannot plausibly be scheduled for the regular proposal cycle. These types of proposals might be appropriate for the follow-up of newly-discovered unexpected transient phenomena or when developments since the last proposal cycle make a time-critical observation necessary. They are also appropriate for timely follow-up of new discoveries that will provide a critical link in the understanding of the phenomena.

To view details about a specific program, click the Program ID. 

PID Title PI Instruments Allocated Hours/Cycle

4434

The late time spectrum of a kilonova in the exceptionally bright GRB 230307A Andrew Levan NIRCam
NIRSpec
4.9/1

4427

The impact of smaller accretion bursts on the planet-forming material in the disk of a young eruptive star Peter Abraham MIRI 2.2/1
2787 A sensitive search for rings and small moons in the Martian system using JWST Geronimo Villanueva NIRCam 5.7/1
2784 Late Time Observations of GRB 221009A: The First Search for r-Process Nucleosynthesis in a Collapsar Peter Blanchard NIRCam
NIRSpec
11.2/1
2783 MIRI LRS follow up on SO2 detection in WASP-39b Diana Powell MIRI 10.7/1
2782

Heavy element formation in the brightest gamma-ray burst of all time

Andrew Levan

MIRI

NIRSpec

2.2/1
2767 Imaging and Spectroscopy of Three Highly Magnified Images of a Supernova at z=1.5 Patrick Kelly NIRCam
NIRSpec
10.3/1
2756 Imaging and Spectroscopic Follow-up of a Supernova at Redshift z=3.47 Wenlei Chen NIRCam
NIRSpec

9.4/1

2754 Unique Constraints on Early Dust Growth in Core-Collapse Supernovae Justin Pierel MIRI 5.6/1
2750

Spectroscopic follow-up of ultra-high-z candidates in CEERS: Characterizing true z > 12 galaxies and z~4-7 interlopers in preparation for JWST Cycle 2

Pablo Arrabal Haro NIRSpec 8.0/1

2747

The Volatile Content of Oort Cloud Comet C/2014 UN271 Bryce Bolin NIRSpec

4.4/1

2739

JWST Cycle 1 Outreach Campaign

Klaus Pontoppidan

MIRI

NIRCam

45.4/1

 

This site is protected by reCAPTCHA and the Google

Webb Space Telescope insignia

 

For technical assistance, please contact the JWST Help Desk.

 

The NASA James Webb Space Telescope, developed in partnership with ESA and CSA, is operated by AURA’s Space Telescope Science Institute.