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: 2022-02-24
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 |
07027 | Krucker | 80710201 to 209 | The Sun | 119.8876 | 20.5287 | 25 | Coordinated with STIX on 2021-07-20 |
07027 | Krucker | 80711201 | The Sun | 25 | Coordinated with STIX | ||
07037 | Brightman | 80701507 | NGC 4045 ULX | 180.6765 | 1.96903 | 100 | Coordinated with XMM-Newton |
07052 | Ballhausen | 80701320 | EXO 2030+375 | 308.063643 | 37.637456 | 50 | Triggered 2021-08-23 |
07055 | Jiang | 80701321 | Black hole transient | 30 | | ||
07070 | Doroshenko | 80702322 | IXPE Transient X-Ray pulsar | 10, 20, 30, 40, 50 | Coordinated with IXPE | ||
07072 | Doroshenko | 80702323 | GK Persei | 52.8 | 43.90428 | 3 x 30 | |
07106 | Margutti | 80702508 | SN2022ffg | 153.450929 | 18.127325 | 2 x 50 | Coordinated with XMM-Newton Triggered 2022-03-29 |
07112 | Yao | 80701509 | AT2021ehb | 46.9492547 | 40.3113484 | 40 | Triggered 2021-11-15 |
07112 | Yao | 80701510 | AT2022cmc | 203.6800149 | 33.2167887 | 40 | Triggered 2022-02-17 |
07113 | Neilsen | 80702324 | V4641 Sgr | 274.8401428 | -25.4071803 | 5 x 20 | Coordinated with NICER (5x10 ks) Triggered 2021-10-14 |
07114 | Li | 80701325 | LAT-undetected Nova | 60 | | ||
07119 | Borghese | 80701326 | 1E 161348-5055 | 244.40096 | -51.04017 | 75 | Coordinated with XMM-Newton |
07128 | Xu | 80701327 | Black hole Hard State | 60 | | ||
07137 | Ballhausen | 80701328 | Cep X4 | 324.87787 | 56.98622 | 100 | Trigger on one of three possible targets |
07137 | Ballhausen | 80701329 | MXB 0656-072 | 104.57204 | -7.20978 | | |
07137 | Ballhausen | 80701330 | Low luminosity CRSF source | | |||
07164 | McBride | 80701610 | IceCube-220303A | 267.7157325 | 10.9488175 | 40 | Triggered 2022-03-04 |
07164 | McBride | 80701611 | ICECUBE2 | 40 | | ||
07167 | Tsuruta | 80701331 | SAX J1808.4-3658 | 272.11475 | -36.97897 | 50 | |
07179 | Krumpe | 80701612 | EC 04570-5206 | 74.565 | -52.034 | 100 | Triggered 2022-05-25 |
07179 | Krumpe | 80701613 | AGN flux drop2 | 100 | | ||
07221 | Somalwar | 80702614 | TC0052 | 307.6972094 | 4.225268866 | 3 x 20 | Coordinated with Swift Triggered 2022-03-08 |
07259 | Mehdipour | 80701616 | MRK 841 | 226.00487 | 10.43789 | 50 | Triggered 2022-01-03 |
07266 | Coughenour | 80701332 | MAXI J1803-298 | 270.76162 | -29.83046 | 50 | Triggered 2021-05-12 |
07277 | Yao | 80702511 | FBOT | 30 + 50 | | ||
07286 | Feng | 80701621 | PKS 0735+17 | 114.5308071 | 17.7052772 | 40 | Triggered 2021-12-09 |
07302 | Jaodand | 80702333 | Transitional ms pulsar | 3 x 30 | Coordinated with NICER | ||
08003 | Mori | 80802325 | GC X-ray Transient | 2x20 | Cycle-8 begins 2022-06-01 | ||
08033 | Ballhausen | 80801326 | New CRSF source | 50 | Cycle-8 begins 2022-06-01 | ||
08041 | Jiang | 80801327 | Black hole transient | 30 | Cycle-8 begins 2022-06-01 | ||
08079 | Coughenour | 80801328 | Transient Black Hole XRB | 50 | Cycle-8 begins 2022-06-01 Coordinated with NICER | ||
08107 | Krucker | 80802200 | The SUN | 2x25 | Cycle-8 begins 2022-06-01 | ||
08110 | Paliya | 80801629 | Swift-BAT blazar 1 | 20 | Cycle-8 begins 2022-06-01 | ||
08110 | Paliya | 80801630 | Swift-BAT blazar 2 | 20 | Cycle-8 begins 2022-06-01 | ||
08115 | Miller | 80801631 | Bright TDE | 50 | Cycle-8 begins 2022-06-01 | ||
08121 | Mondal | 80801332 | FXT/VFXT | 30 | Cycle-8 begins 2022-06-01 | ||
08125 | Jaisawal | 80801333 | 4U 1820-30 | 275.91904 | -30.36128 | 45 | Cycle-8 begins 2022-06-01 Coordinated with NICER |
08131 | Krumpe | 80801634 | AGN flux drop | 100 | Cycle-8 begins 2022-06-01 | ||
08136 | Sokolovsky | 80801335 | New Nova | 60 | Cycle-8 begins 2022-06-01 | ||
08166 | Feng | 80802636 | Candidate Nu-Blazar | 2x40 | Cycle-8 begins 2022-06-01 | ||
08167 | Krumpe | 80801637 | AGN-ignition 1 | 50 | Cycle-8 begins 2022-06-01 | ||
08167 | Krumpe | 80801638 | AGN ignition 2 | 50 | Cycle-8 begins 2022-06-01 | ||
08171 | McBride | 80801639 | ICECUBE 1 | 40 | Cycle-8 begins 2022-06-01 | ||
08171 | McBride | 80801640 | ICECUBE 2 | 40 | Cycle-8 begins 2022-06-01 | ||
08201 | Shaw | 80801341 | GX 339-4 | 255.70575 | -48.78978 | 20 | Cycle-8 begins 2022-06-01 |
08201 | Shaw | 80801342 | Generic Black Hole LMXB | 20 | Cycle-8 begins 2022-06-01 | ||
08211 | Arbet-Engels | 80801643 | BL Lac type transient | 40 | Cycle-8 begins 2022-06-01 | ||
08219 | Draghis | 80802344 | Black hole transient 1 | 2x30 | Cycle-8 begins 2022-06-01 | ||
08219 | Draghis | 80802345 | Black hole transient 2 | 2x30 | Cycle-8 begins 2022-06-01 | ||
08219 | Draghis | 80802346 | Black hole transient 3 | 2x30 | Cycle-8 begins 2022-06-01 | ||
08226 | Pike | 80802347 | Unknown MAXI source 1 | 2x20 | Cycle-8 begins 2022-06-01 | ||
08226 | Pike | 80802348 | Unknown MAXI source 2 | 2x20 | Cycle-8 begins 2022-06-01 | ||
08226 | Pike | 80802349 | Unknown MAXI source 3 | 2x20 | Cycle-8 begins 2022-06-01 | ||
08227 | Arbet-Engels | 80801650 | 1ES 2344+514 low state | 356.77017 | 51.70497 | 20 | Cycle-8 begins 2022-06-01 |
08227 | Arbet-Engels | 80801651 | 1ES 2344+514 high state | 356.77017 | 51.70497 | 20 | Cycle-8 begins 2022-06-01 |
08233 | Lawther | 80802652 | Mrk 590 | 33.63992 | -0.76675 | 20+20+60+50 | Cycle-8 begins 2022-06-01 Coordinated with XMM-Newton & NICER |
08234 | Haemmerich | 80801653 | Flaring Blazar | 50 | Cycle-8 begins 2022-06-01 Coordinated with Gehrels-Swift | ||
08236 | Bonnoli | 80801654 | New VHE FSRQ | 40 | Cycle-8 begins 2022-06-01 | ||
08246 | Jaodand | 80802755 | Binary NS merger afterglow | 100+75+75 | Cycle-8 begins 2022-06-01 | ||
Joint NuSTAR/Chandra GO ToO programs | |||||||
21400516 | K Mori | 80602301 | Galactic Center transient | tbd | tbd | 2x20 | |
22400400 | K Mori | 80702304 | Galactic Center VFXT | tbd | tbd | 2x20 | |
22400529 | M Bachetti | 80701305 | M82 X-2 | 148.962667 | 69.679303 | 80 | |
22500172 | P Scholz | 80701506 | FRB 20200120E | 149.4850 | 68.8180 | 27 | Triggered 2020-12-02 Coordinated with Effelsberg 100m |
22500192 | D Matthews | 80701407 | AT2020xnd (Fast Blue Optical Transient) | 335.008458 | -2.8403611 | 2x25, 2x40 | Triggered 2020-10-26 |
23400247 | Neilsen | 80802303 | Black Hole Transient | 4 x 25 | |||
23500541 | Chornock | 80802504 | Intereacting SN | 2 x 50 | |||
Joint NuSTAR/XMM-Newton GO ToO programs | |||||||
078214 | Felix Fuerst | 80201011 | BH ToO | 40 | Coordinated with 10 x 2 ks Swift observations. Program extended into cycle-17 | ||
078430 | Nanda Rea | 80202013 | XTE J1810-197 | 272.46 | -19.731 | 20+30+40+80 | Observations to be obtained over ~3 months. Triggered 2018-12-20 |
082145 | Alessandro Papitto | 80401306 | ms pulsar | 60 | |||
082359 | Nanda Rea | 80402308 | Swift J1818.0-1607 | 274.5009167 | -16.1311944 | 20,30,40,80 | Triggered 2020-03-20 |
084079 | Fiona Harrison | 80501303 | BH hard state | 40 | |||
084080 | Norbert Schartel | 80502606 | NGC 1566 | 65.00167 | -54.9378056 | 50 | Triggered 2019-05-30 |
084080 | Norbert Schartel | 80502607 | IRAS 23226-3843 | 351.350833 | -38.446944 | 50 | Triggered 2019-10-16 |
084355 | Raffaella Margutti | 80502405 | AT2018cow | 244.001004 | 22.268024 | 2x25 + 2x40 | Triggered 2022-02-07(single 130 ks exposure) |
084377 | Norbert Schartel | 80501606 | AGN minimum | 80 | |||
084434 | Jelle Kaastra | 80502609 | NGC 3227 | 155.8775 | 19.8650 | 2x25 | Triggered 2019-11-11 |
084469 | Jian Li | 80501608 | muon track neutrino | 40 | |||
084526 | Luigi Piro | 80501609 | GW event | 150 | |||
084545 | James Court | 80502310 | GRO J1744-28 | 266.137875 | -28.740833 | 80 | |
086127 | Allesandro Papitto | 80601304 | transitional ms pulsar | 60 | |||
086276 | Hannah Earnshaw | 8061305 | NGC 925 ULX-3 | 36.864583 | 33.570278 | 100 | Triggered 2020-08-11 |
086342 | Raffaella Margutti | 80602406 | SN2019yvr | 191.28389 | -0.45909 | 2x50 | Triggered 2020-06-18 |
086403 | Jennifer Sokoloski | 80602307 | T CrB | 239.875667 | 25.920167 | 50 | Triggered 2020-08-27 |
086460 | Nanda Rea | 80602315 | PSR J1846-0258 | 281.60391667 | -2.97502778 | 23,30,40,80 | Triggered 2020-08-02 |
088008 | Norbert Schartel | 80701608 | AGN outburst | 2x50 | Coordinated with SALT or HET | ||
088054 | Pierre-Olivier Petrucci | 80702310 | BH LMXB | 10x20 | |||
088218 | Nanda Rea | 80702311 | Magnetar outburst | ||||
088470 | Alessandro Papitto | 80701312 | accreting ms pulsar | 120 | 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 |
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 | |||||
Joint NuSTAR/INTEGRAL GO ToO programs | |||||||
1740029 | Riccardo La Placa | 80601314 | Millisecond X-ray pulsar | 30 | Also coordinated with XMM-Newton | ||
1740033 | Julia Alfonso-Garzon | 80501302 | H 1145-619 | 177.000083 | -62.2069167 | 25 | Also coordinated with Swift |
1840002 | Thomas Siegert | 80701501 | NS merger | 100 | |||
1840005 | Zhaosheng Li | 80701302 | Accreting 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 | |||
Joint NuSTAR/Swift GO ToO programs | |||||||
1619112 | Luigi Piro | 80601509 | FRB201124 | 77.0125 | 26.0606 | 20 | Fast Radio burst |
1619112 | Luigi Piro | 80601510 | Fast Radio burst 2 | tbd | tbd | 20 | |
1619139 | Liliana Sandoval | 80602511 | Fast-Evolving Luminous Transient | tbd | tbd | 3x20 | |
1821098 | Kirill Sokolovsky | 80801310 | New Nova | 40 | |||
1821161 | Maria-Carla Nicotra | 80801311 | FRB1 | 20 | |||
1821161 | Maria-Carla Nicotra | 80801312 | FRB2 | 20 | |||
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 | Transient XRB-1 | 2x30 + 20 | Coordinated 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 | Magnetar Outburst | 20+30+50 | Coordinated with DSN | ||
05079 | Alice Borghese | 80801318 | Magnetar Outburst-1 | 20 | |||
05079 | Alice Borghese | 80801319 | Magnetar Outburst-2 | 20 | |||
05099 | Federico Garcia | 80802320 | BH transient | 3x20 | |||
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 | BHB | 100 |