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: 2023-05-22
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 | ||||
06238 | Vestergaard | 80602604 | Mrk 590 | 33.63992 | -0.76675 | 50+40+30 | Joint with 3x25 ks XMM-Newton and 3x10 ks Swift observations Multi-cycle program Triggered 2021-12-17 |
07221 | Somalwar | 80702614 | TC0052 | 307.6972094 | 4.225268866 | 3 x 20 | Coordinated with Swift Triggered 2022-03-08 |
08003 | Mori | 80802325 | GC X-ray Transient | 2x20 | |||
08033 | Ballhausen | 80801326 | RX J0440.9+4431 | 70.247207 | 44.530349 | 50 | Triggered 2023-01-02 |
08041 | Jiang | 80801327 | 4U 1630-472 | 248.506708 | -47.3930 | 30 | Triggered 2023-03-07 |
08079 | Coughenour | 80801328 | AT2019wey | 68.846980 | 55.376190 | 50 | Coordinated with NICERTriggered 2022-12-12 |
08107 | Krucker | 80802200 | The SUN | 2x25 | |||
08110 | Paliya | 80801629 | Swift-BAT blazar 1 | 20 | |||
08110 | Paliya | 80801630 | Swift-BAT blazar 2 | 20 | |||
08115 | Miller | 80801631 | Bright TDE | 50 | |||
08121 | Mondal | 80801332 | XMM J173029-330920 | 262.622034 | -33.155719 | 30 | Triggered 2023-04-20 |
08125 | Jaisawal | 80801333 | 4U 1820-30 | 275.91904 | -30.36128 | 45 | Coordinated with NICER |
08131 | Krumpe | 80801634 | AGN flux drop | 100 | |||
08136 | Sokolovsky | 80801335 | PNV J17224490-4137160 | 260.6876667 | -41.6212500 | 60 | Coordinated with XMM-Newton Triggered 2023-04-20 |
08166 | Feng | 80802636 | B3 2247+381 | 342.524 | 38.410 | 2x40 | Triggered 2022-09-24 Coordinated with Swift & VERITAS |
08167 | Krumpe | 80801637 | AGN-ignition 1 | 50 | |||
08167 | Krumpe | 80801638 | AGN ignition 2 | 50 | |||
08171 | McBride | 80801639 | TXS 2320+343 | 350.683393 | 34.603854 | 40 | Triggered 2022-12-26 |
08171 | McBride | 80801640 | ICECUBE 2 | 40 | |||
08201 | Shaw | 80801341 | GX 339-4 | 255.70575 | -48.78978 | 20 | Triggered 2022-09-06 Coordinated with JWST |
08201 | Shaw | 80801342 | Generic Black Hole LMXB | 20 | Coordinated with JWST | ||
08211 | Arbet-Engels | 80801643 | Mrk 421 | 166.113790 | 38.208830 | 40 | Triggered 2023-05-12 Coordinated with MAGIC |
08219 | Draghis | 80802344 | XTE J2012+381 | 303.1573 | 38.1837 | 2x30 | Triggered 2022-12-26 |
08219 | Draghis | 80802345 | XTE J1901+014 | 285.410 | 1.393 | 30 | Triggered 2023-02-17 Second observation dropped |
08219 | Draghis | 80802346 | SLX 1746-331 | 267.4539 | -33.2032 | 3x30 | Triggered 2023-03-10 Third 30ks observation added |
08226 | Pike | 80801347 | MAXI J0655-013 | 103.7930 | -1.5310 | 40 | Triggered 2022-06-19 |
08226 | Pike | 80802348 | Unknown MAXI source 2 | 2x20 | |||
80802349 | Unknown MAXI source 3 | 2x20 | |||||
08227 | Arbet-Engels | 80801650 | 1ES 2344+514 low state | 356.77017 | 51.70497 | 20 | triggered 2022-07-28 Coordinated with XMM and MAGIC |
08227 | Arbet-Engels | 80801651 | 1ES 2344+514 high state | 356.77017 | 51.70497 | 20 | |
08233 | Lawther | 80802652 | Mrk 590 | 33.63992 | -0.76675 | 20+20+60+50 | Coordinated with XMM-Newton & NICER |
08234 | Haemmerich | 80801653 | Flaring Blazar | 50 | Coordinated with Gehrels-Swift | ||
08236 | Bonnoli | 80801654 | New VHE FSRQ | 40 | |||
08246 | Jaodand | 80802755 | Binary NS merger afterglow | 100+75+75 | |||
09029 | Kaya Mori | 80960301 | Polar WD in high accretion | 15 x 20 | NuSTAR cycle-9 begins on 2023-06-01 | ||
09047 | Mariko Kimura | 80902330 | SS Cyg | 325.67833 | 43.58608 | 100 + 30 | NuSTAR cycle-9 begins on 2023-06-01 Coordinated with XRISM |
09050 | Sam Krucker | 80910201 | The Sun | 2 x 25 | NuSTAR cycle-9 begins on 2023-06-01 | ||
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 | Black Hole Transient | 5 x 20 | NuSTAR cycle-9 begins on 2023-06-01 Coordinated with NICER | ||
09108 | Reshmi Mukherjee | 80902634 | Candidate neutrino blazar | 2 x 40 | NuSTAR cycle-9 begins on 2023-06-01 | ||
09109 | Dheeraj Pasham | 80902635 | Relativistic TDE | 2x20 + 40 | NuSTAR cycle-9 begins on 2023-06-01 Coordinated with NICER | ||
09124 | Amruta Jaodand | 80902336 | Binary neutron star merger | 100 + 2x75 | NuSTAR cycle-9 begins on 2023-06-01 | ||
09138 | Marina Orio | 80902337 | New Symbotic Nova | 3 x 20 | NuSTAR cycle-9 begins on 2023-06-01 | ||
09180 | Megumi Shidatsu | 80901338 | Disk-wind black hole binary | 50 | NuSTAR cycle-9 begins on 2023-06-01 Coordinated with XRISM | ||
09191 | Svetlana Jorstad | 80901639 | Flaring blazar 1 | 20 | NuSTAR cycle-9 begins on 2023-06-01 Coordinated with Gehrels-Swift and IXPE | ||
80901640 | Flaring blazar 2 | 20 | |||||
09198 | Kirill Sokolovsky | 80901341 | New Nova | 60 | NuSTAR cycle-9 begins on 2023-06-01 Coordinated with XMM-Newton | ||
09235 | Aarran Shaw | 80902342 | GX 339-4 | 255.70579 | -48.78975 | 2 x 20 | NuSTAR cycle-9 begins on 2023-06-01 Coordinated with JWST |
80902343 | Black hole LMXB | 2 x 20 | |||||
09251 | Koji Mukai | 80901344 | T CrB | 239.87567 | 25.92017 | 40 | NuSTAR cycle-9 begins on 2023-06-01 Coordinated with XRISM |
09257 | Sean Pike | 80911301 | Unknown MAXI source 1 | 2 x 20 | NuSTAR cycle-9 begins on 2023-06-01 | ||
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 | NuSTAR cycle-9 begins on 2023-06-01 Coordinated with NICER |
09274 | Oluwashina Adegoke | 80902346 | Black hole binary | 3 x 25 | NuSTAR cycle-9 begins on 2023-06-01 Coordinated with NICER | ||
09276 | Javier Garcia | 80901347 | Black hole transient | 30 | NuSTAR cycle-9 begins on 2023-06-01 Coordinated with NICER | ||
09289 | James Steiner | 80902348 | Black hole transient | 4 x 20 | NuSTAR cycle-9 begins on 2023-06-01 Coordinated with NICER | ||
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 |
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 | BH LMXB | 10x20 | |||
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 | SNinteracting | 2x50 | |||
092270 | Elias Kammoun | 80902606 | SMSS J114447.77-430859.3 | 176.199 | -43.14984 | 2x80 | |
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 | |||||||
04163 | Jeroen Homan | 80702318 | 4U 1820-30 | 275.91904 | -30.361278 | 3x20 | Triggered 2021-06-12 |
05001 | Fiamma Capitanio | 80802313 | 4U1630-47 | 248.5067083 | -47.3930 | 2x30 + 20 | Triggered 2022-08-22Coordinated with IXPE |
05001 | Fiamma Capitanio | 80802314 | Transient XRB-2 | 2x30 + 20 | Coordinated with IXPE | ||
05001 | Fiamma Capitanio | 80802315 | Transient XRB-3 | 2x30 + 20 | Coordinated with IXPE | ||
05065 | Riley Connors | 80802316 | Transient BH Binary | 4x20 | |||
05076 | Teruaki Enoto | 80802317 | SGR J1935+2154 | 293.7320 | 21.89672 | 50+50 | Triggered 2022-10-12Coordinated with DSN |
05079 | Alice Borghese | 80801318 | Magnetar Outburst-1 | 20 | |||
05079 | Alice Borghese | 80801319 | Magnetar Outburst-2 | 20 | |||
05099 | Federico Garcia | 80802320 | GX 339-4 | 255.705754 | -48.78975 | 3x20 | Triggered 2022-08-30 |
05106 | Filippo D'Ammando | 80801605 | Blazar | 40 | |||
05118 | Jingyi Wang | 80802321 | IGR J17091-3624 | 257.2833 | -36.4067 | 3x20 | Triggered 2022-04-12 |
05131 | Joseph Neilsen | 80801322 | GRS 1915+105 | 288.798167 | 10.945806 | 25 | |
05140 | Guglielmo Mastroserio | 80801323 | BH transient | 50 | |||
05172 | Javier Garcia | 80801324 | IGR J17091-3624 | 257.2833 | -36.4067 | 100 | Triggered 2022-08-17 |
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 |
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 | BH transient #1 | 30 | |||
80901321 | BH transient #2 | 30 |