RA/DEC (2000)
11:40:41.756 +18:14:18.79
175.1739845 +18.2385516
Type
TDE-H-He
Redshift
0.182
Discovery ReportClassification Report
Related AstroNotes: 2025-212
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-04-18 21:28:46.272
TNS AT
Y
Public
Y
Discovery Mag
19.34
Filter
L-GOTO
Reporter/s
D. O'Neill, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, B. Godson, T. Killestein, A. Kumar, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌TDE_2025iuh - 2025-06-25 00:00:00 Keck1 / LRIS (ZTF)z=
▌Show H at z=vexp= km/s
▌Show He at z=vexp= km/s
▌Show He II at z=vexp= km/s
▌Show C II at z=vexp= km/s
▌Show C III at z=vexp= km/s
▌Show C IV at z=vexp= km/s
▌Show N II at z=vexp= km/s
▌Show N III at z=vexp= km/s
▌Show N IV at z=vexp= km/s
▌Show N V at z=vexp= km/s
▌Show O at z=vexp= km/s
▌Show [O I] at z=vexp= km/s
▌Show O II at z=vexp= km/s
▌Show [O II] at z=vexp= km/s
▌Show [O III] at z=vexp= km/s
▌Show O V at z=vexp= km/s
▌Show O VI at z=vexp= km/s
▌Show Na at z=vexp= km/s
▌Show Mg at z=vexp= km/s
▌Show Mg II at z=vexp= km/s
▌Show Si II at z=vexp= km/s
▌Show S II at z=vexp= km/s
▌Show Ca II at z=vexp= km/s
▌Show [Ca II] at z=vexp= km/s
▌Show Fe II at z=vexp= km/s
▌Show Fe III at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Tellurics 
▌Show Galaxy lines at z=
▌Show WR-WN at z=vexp= km/s
▌Show WR-WC/O at z=vexp= km/s
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌GOTO-N_GOTO-2_L
 ▌P48_ZTF-Cam_g
 ▌ATLAS-HKO_ATLAS-02_cyan
   
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
Spectra
 ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
21520 2025-06-25 00:00:00 Keck1 / LRIS R. Chornock ZTF tns_2025iuh_2025-06-25_Keck1_LRIS_ZTF.flm Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-04-16 00:23:34 - 2025-04-18 21:28:46 2460781.516358 - 2460784.394982 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
485035 2025-04-18 21:28:46 2460784.394982 19.34 0.16 ABMag L-GOTO GOTO-N_GOTO-2 180
485034 2025-04-16 00:23:34 2460781.516358 19.2 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
g-ZTF P48_ZTF-Cam 2025-04-22 06:05:28 - 2025-05-01 05:53:23 2460787.7537963 - 2460796.7454051 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
501960 2025-05-01 05:53:23 2460796.7454051 19.426 0.127444 ABMag g-ZTF P48_ZTF-Cam
501959 2025-04-23 06:56:39 2460788.7893403 19.4038 0.119423 ABMag g-ZTF P48_ZTF-Cam
501958 2025-04-22 06:05:28 2460787.7537963 20.8064 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
cyan-ATLAS ATLAS-HKO_ATLAS-02 2025-05-18 08:35:59 - 2025-05-19 07:39:30 2460813.85832 - 2460814.8191 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
490921 2025-05-19 07:39:30 2460814.8191 19.123 0.141 19.48 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
490920 2025-05-18 08:35:59 2460813.85832 19.46 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
AT Reports
ID Time received (UT) Sender Reporter/s Reporting group Disc. Data Source RA DEC Discovery date (UT) Discovery Mag. Filter Related files AT Type Host name Internal name Assoc. Groups End prop. period Remarks ADS Bibcode Unreal Auto classification
262133 2025-07-11 19:31:36 tdescore_bot Robert Stein (UMD) on behalf of the ZTF AGN/TDE working group ZTF ZTF 11:40:41.756 +18:14:18.79 2025-04-23 06:56:39.001 19.4038 g-ZTF PSN ZTF25aaooewz ZTF N
256395 2025-05-24 12:37:53 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 11:40:41.734 +18:14:19.13 2025-05-19 07:39:30.240 19.123 cyan-ATLAS PSN ATLAS25fif ATLAS N
253139 2025-04-30 09:52:06 GOTO_bot D. O'Neill, K. Ackley, M. Dyer et al. GOTO GOTO 11:40:41.763 +18:14:18.53 2025-04-18 21:28:46.272 19.34 L-GOTO Other GOTO25ces GOTO 2025TNSTR1594....1O N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21520 2025-07-14 13:39:20 Robert Stein R. Stein (JSI), K. Das (Caltech), R. Chornock (UC Berkeley), X. J. Hall (CMU), J. Carney (UNC), I. Andreoni (UNC), E. Hammerstein (UC Berkeley), X. Guo (UC Berkeley), M. Kasliwal (Caltech) on behalf of the ZTF AGN/TDE working group ZTF TDE-H-He 0.182 1 ZTF 2025TNSCR2706....1S
Spectra
ID Obs-date (UT) Tel / Inst Exp-Time Observer/s Reducer/s Group Spectrum ascii file Spectrum fits file Spec. Type Assoc. Groups End prop. period Remarks
21520 2025-06-25 00:00:00 Keck1 / LRIS R. Chornock ZTF tns_2025iuh_2025-06-25_Keck1_LRIS_ZTF.flm Object

Comments

TNS
System

Fri, 07/11/2025 - 19:31

Object coordinates updated

Object coordinates updated according to AT-report 262133 of Group ZTF
Previous RA, DEC: 11:40:41.734, +18:14:19.13 (175.173892, +18.238646)
Updated RA, DEC: 11:40:41.756, +18:14:18.79 (175.1739845, +18.2385516)

TNS
System

Sat, 05/24/2025 - 12:37

Object coordinates updated

Object coordinates updated according to AT-report 256395 of Group ATLAS
Previous RA, DEC: 11:40:41.763, +18:14:18.53 (175.174013, +18.238481)
Updated RA, DEC: 11:40:41.734, +18:14:19.13 (175.173892, +18.238646)