NuSTAR ToO targets approved within the NuSTAR, Chandra, XMM-Newton, Swift, NICER, and INTEGRAL General Observer programs
NuSTAR Target of Opportunity (ToO) observations may be proposed for in the NuSTAR, Chandra, XMM-Newton, Neil Gehrels Swift Observatory, NICER mission, and INTEGRAL General Observer (GO) programs.
Last update: 2023-10-31
Proposal title and abstracts are available here, or click on the Proposal number in the table below. Note that NuSTAR ToO and DDT observations may be requested at any time through the ToO/DDT observation request form which provides a list of currently active unanticipated ToO/DDT targets.
Proposals will be marked with an orange background when they are triggered and a green background when they are completed. Targets that have yet to be identified have blank J2000 coordinates.
NuSTAR GO ToO programs | |||||||
---|---|---|---|---|---|---|---|
Proposal | ObsID | Target Name | Comments | ||||
08166 | Feng | 80802636 | B3 2247+381 | 342.524 | 38.410 | 2x40 | Triggered 2022-09-24 Coordinated with Swift & VERITAS |
08233 | Daniel Lawther | 80802652 | Mrk 590 | 33.63992 | -0.76675 | 20+20+60+50 | Triggered 2023-09-25Multi-cycle ToO programCoordinated with XMM-Newton or NICER |
09029 | Kaya Mori | 80960302-15 | Polar WD in high accretion | 14 x 20 | Multi-cycle ToO program | ||
09029 | Kaya Mori | 80960301 | VV Pup | 123.778337 | -19.054935 | 20 | Triggered 2023-06-08 |
09047 | Mariko Kimura | 80902330 | SS Cyg | 325.67833 | 43.58608 | 100 + 30 | Coordinated with XRISM |
09050 | Sam Krucker | 80910201 | The Sun | 2 x 25 | |||
09085 | Sibasish Laha | 80902632 | 1ES 1927+654 | 291.831208 | 65.565103 | 4 x 40 | Triggered 2023-05-22 Coordinated with NICER |
09094 | Joseph Neilsen | 80902333 | Swift J1727.8-1613 | 261.930583 | -16.205322 | 5 x 20 | Triggered 2023-08-27Coordinated with NICER |
09108 | Reshmi Mukherjee | 80902634 | Candidate neutrino blazar | 2 x 40 | |||
09109 | Dheeraj Pasham | 80902635 | Relativistic TDE | 2x20 + 40 | Coordinated with NICER | ||
09124 | Amruta Jaodand | 80902336 | Binary neutron star merger | 100 + 2x75 | |||
09138 | Marina Orio | 80902337 | New Symbotic Nova | 3 x 20 | |||
09180 | Megumi Shidatsu | 80901338 | Disk-wind black hole binary | 50 | Coordinated with XRISM | ||
09191 | Svetlana Jorstad | 80901639 | BL Lac | 330.680380 | 42.277772 | 20 | Coordinated with Gehrels-Swift and IXPE |
80901640 | Flaring blazar 2 | 20 | |||||
09198 | Kirill Sokolovsky | 80901341 | New Nova | 60 | Coordinated with XMM-Newton | ||
09235 | Aarran Shaw | 80902342 | GX 339-4 | 255.70579 | -48.78975 | 2 x 20 | Coordinated with JWST |
80902343 | Black hole LMXB | 2 x 20 | |||||
09251 | Koji Mukai | 80901344 | T CrB | 239.87567 | 25.92017 | 40 | Coordinated with XRISM |
09257 | Sean Pike | 80911301 | Unknown MAXI source 1 | 2 x 20 | |||
80912301 | Unknown MAXI source 2 | 2 x 20 | |||||
80913301 | Unknown MAXI source 3 | 2 x 20 | |||||
09271 | Jennifer Sokoloski | 80902345 | T CrB | 239.87567 | 25.92017 | 2 x 20 | Coordinated with NICER |
09274 | Oluwashina Adegoke | 80902346 | Black hole binary | 3 x 25 | Coordinated with NICER | ||
09276 | Javier Garcia | 80901347 | Black hole transient | 30 | Coordinated with NICER | ||
09289 | James Steiner | 80902348 | SwiftJ1727.8-1613 | 261.930583 | -16.205322 | 4 x 20 | Coordinated with NICERTriggered 2023-10-16 |
Joint NuSTAR/Chandra GO ToO programs | |||||||
23400247 | Neilsen | 80802303 | Black Hole Transient | 4 x 25 | |||
23500541 | Chornock | 80802504 | SN2012ap | 75.057167 | -3.347560 | 2 x 50 | Triggered 2022-12-28 |
24400072 | Mori | 80902301 | GC transient | 2x20 | |||
24400242 | Neilsen | 80902302 | Black Hole transient | 4x25 | |||
24500203 | Brethauer | 80902503 | SN2022xxf | 172.524751 | 9.282604 | 2x50 | Triggered 2023-04-24 |
24500280 | Matthews | 80902404 | AT2022tsd | 50.045282 | 8.748878 | 2x25,2x40 | Triggered 2022-10-07 |
25400276 | Kosec | 81002301 | LMC/SMC ULX | 3x20 | Cycle-25 begins 2024-01-01 | ||
25400338 | Neilsen | 81002302 | Black Hole Transient | 4x25 | Cycle-25 begins 2024-01-01 | ||
25500335 | Margutti | 81002403 | FBOT | 2x25 + 2x40 | Cycle-25 begins 2024-01-01 | ||
Joint NuSTAR/XMM-Newton GO ToO programs | |||||||
086127 | Allesandro Papitto | 80601304 | Terzan 5 | 267.02083 | -24.7800 | 60 | Triggered 2023-03-01 |
088008 | Norbert Schartel | 80701608 | RX J0128.1-1848 | 22.0280 | -18.808625 | 50 | Triggered 2022-11-29Coordinated with SALT or HET |
088008 | Norbert Schartel | 80701609 | AGN outburst 2 | 50 | Coordinated with SALT or HET | ||
088054 | Pierre-Olivier Petrucci | 80702310 | Swift J1727.8-1613 | 261.930583 | -16.205322 | 10x20 | Triggered 2023-08-29 |
088218 | Nanda Rea | 80702311 | SGR J1935+2154 | 293.7320 | 21.896720 | 50+40+80 | Triggered 2022-10-17 |
088470 | Alessandro Papitto | 80701312 | SAX J1808.4-3658 | 272.114750 | -36.978970 | 120 | Triggered 2022-08-20 Coordinated with IXPE |
090022 | Norbert Schartel | 80801601 | AGN Minimum 1 | 80 | Coordinated with HST | ||
80801602 | AGN Minimum 2 | 80 | |||||
090023 | Norbert Schartel | 80801603 | PG 0043+039 | 11.446792 | 4.173156 | 60 | Coordinated with HST and HET/SALT Triggered 2022-06-16 |
090067 | Adam Ingram | 80802309 | GRS 1915+105 | 288.798125 | 10.945778 | 3x30 | Coordinated with IXPE |
090245 | Missagh Mehdipour | 80801604 | AGN obscuration | 30 | Coordinated with HST | ||
090251 | Daniel Stern | 80860601 | eROSITA-fader1 | 20 | |||
80860602 | eROSITA-fader6 | 20 | |||||
80860603 | eROSITA-fader6 | 20 | |||||
80860604 | eROSITA-fader6 | 20 | |||||
80860605 | eROSITA-fader6 | 20 | |||||
80860606 | eROSITA-fader6 | 20 | |||||
090284 | Javier Garcia | 80801305 | BH transient | 40 | |||
090332 | David Matthews | 80802406 | FBOT | 2x25+2x40 | |||
090357 | Sergio Campana | 80801507 | GW counterpart1 | 60 | Coordinated with HST and NRAO | ||
80801508 | GW counterpart2 | 60 | |||||
092118 | Raffaella Margutti | 80902505 | SN2023ixf | 210.910667 | 54.311675 | 2x50 | Triggered 2023-06-04 |
092270 | Elias Kammoun | 80902606 | SMSS J114447.77-430859.3 | 176.199 | -43.14984 | 2x80 | Triggered 2023-06-15 |
092317 | Alessandro Papitto | 80901307 | Accreting ms pulsar | 120 | Coordinated with IXPE | ||
092331 | Missagh Mehdipour | 80901608 | NGC 3516 | 166.697763 | 72.56869 | 60 | Coordinated with HSTTriggered 2023-04-23 |
092346 | Arianna Miraval Zanon | 80901309 | Transitional ms pulsar | 60 | Coordinated with VLA | ||
092410 | Erin Kara | 80902610 | Mrk 817 | 219.09200858 | 58.7942763 | 60 | Coordinated with HSTTriggered 2023_04-24 |
Joint NuSTAR/INTEGRAL GO ToO programs | |||||||
1840002 | Thomas Siegert | 80701501 | NS merger | 100 | |||
1840005 | Zhaosheng Li | 80701302 | ms pulsar | 30 | Also coordinated with XMM-Newton, NICER, and HXMT | ||
1840021 | Ingo Kreykenbohm | 80701303 | Accreting X-ray pulsar | 40 | |||
1940020 | Ingo Kreykenbohm | 80801301 | Transient accreting pulsar | 40 | |||
1940025 | Thomas Siegert | 80801502 | GW Neutron star merger | 100 | |||
2040002 | Thomas Siegert | 80901324 | NS merger | 100 | |||
2040026 | Maria Teresa Fiocchi | 80901325 | Ultracompact XRB in outburst | 25 | |||
Joint NuSTAR/Swift GO ToO programs | |||||||
1821098 | Kirill Sokolovsky | 80801310 | New Nova | 40 | |||
1821161 | Maria-Carla Nicotra | 80801311 | FRB1 | 20 | |||
1821161 | Maria-Carla Nicotra | 80801312 | FRB2 | 20 | |||
1922051 | Liliana Rivera Sandoval | 80902423 | Fast-evolving luminous transient | 3x20 | Swift cycle-19 begins on 2023-04-01 | ||
Joint NuSTAR/NICER GO ToO programs | |||||||
05099 | Federico Garcia | 80802320 | GX 339-4 | 255.705754 | -48.78975 | 3x20 | Triggered 2022-08-30 |
06039 | Teruaki Enoto | 80902311 | Magnetar Outburst | 20+30+50 | Coordinated with DSN | ||
06057 | Fiamma Capitanio | 80902312 | 4U 1630-47 | 248.50671 | -47.39300 | 3x20 + 20 | Triggered 2023-03-07 Coordinated with IXPE |
06057 | Fiamma Capitanio | 80902313 | SwiftJ1727.8-1613 | 261.930583 | -16.205322 | 4x20 | Triggered 2023-09-04 Coordinated with IXPE |
06078 | Yuhan Yao | 80901615 | Tidal Disruption Event | 50 | |||
06113 | Adam Ingram | 80902316 | GRS 1915+105 | 288.798167 | 10.945806 | 3x20 | Coordinated with IXPE |
06141 | Jingyi Wang | 80902317 | Transient BH Binary | 3x20 | |||
06143 | James Steiner | 80902318 | Cygnus X-1 | 299.590333 | 35.201611 | 3x20 | Coordinated with IXPE Triggered 2023-04-07 |
06197 | Joseph Neilsen | 80901320 | GRS 1915+105 | 288.798167 | 10.945806 | 25 | |
06203 | Paul Draghis | 80901321 | SwiftJ1727.8-1613 | 261.930583 | -16.205322 | 30 | Triggered 2023-08-28 |
80901321 | BH transient #2 | 30 | |||||
07041 | Alice Borghese | 81001304 | Magnetar outburst #1 | 20 | Cycle-6 begins on 2024-03-01 | ||
07041 | Alice Borghese | 81001304 | Magnetar outburst #2 | 20 | Cycle-6 begins on 2024-03-01 | ||
07082 | Teruaki Enoto | 81002306 | Magnetar outburst | 20+30+50 | Cycle-6 begins on 2024-03-01 | ||
07126 | Gugleilmo Mastroserio | 81001307 | Black hole transient | 50 | Cycle-6 begins on 2024-03-01 | ||
07141 | Muryel Guolo | 81001608 | New TDE | 50 | Cycle-6 begins on 2024-03-01 | ||
07164 | Keigo Fukumura | 81002309 | MAXI J1810-222 | 273.17 | -22.31 | 3x20 | Cycle-6 begins on 2024-03-01 |
07170 | Edward Nathan | 81001310 | GRS1915+105 | 288.798167 | 10.945806 | 30 | Cycle-6 begins on 2024-03-01 |