RA/DEC (2000)
14:56:15.269 -05:54:37.35
224.0636207 -5.9103762
Type
SN Ia
Redshift
0.1
Discovery ReportClassification Report
Related AstroNotes: 2025-176
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-04-22 09:08:24.999
TNS AT
Y
Public
Y
Discovery Mag
21.2746
Filter
g-ZTF
Reporter/s
Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025iww - 2025-06-01 22:37:21 NOT / ALFOSC (BlackGEM)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-S_GOTO-3_L
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌BG3_BlackGEM-Cam3_BG-q
 ▌P48_ZTF-Cam_g
   
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
21239 2025-06-01 22:37:21 NOT / ALFOSC 1300 Gerard Garcia-Moreno, Mathias Gort Gerard Garcia-Moreno BlackGEM tns_2025iww_2460828.4426_NOT_ALFOSC_BlackGEM.txt tns_2025iww_2460828.4426_NOT_ALFOSC_BlackGEM.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-3 2025-04-20 14:14:11 - 2025-05-06 14:30:27 2460786.093184 - 2460802.104476 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
487981 2025-05-06 14:30:27 2460802.104476 19.56 0.16 ABMag L-GOTO GOTO-S_GOTO-3 180
487980 2025-04-20 14:14:11 2460786.093184 19.2 ABMag L-GOTO GOTO-S_GOTO-3 90 [Last non detection]
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-05-20 02:05:32 - 2025-05-20 02:05:32 2460815.5871759 - 2460815.5871759 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
490947 2025-05-20 02:05:32 2460815.5871759 19.42 0.08 21.29 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
BG-q-BlackGem BG3_BlackGEM-Cam3 2025-05-13 04:51:24 - 2025-05-13 04:51:24 2460808.7023611 - 2460808.7023611 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
490946 2025-05-13 04:51:24 2460808.7023611 18.87 ABMag BG-q-BlackGem BG3_BlackGEM-Cam3 60 robotic [Last non detection]
g-ZTF P48_ZTF-Cam 2025-04-22 09:07:44 - 2025-05-01 08:29:51 2460787.8803704 - 2460796.8540625 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
485250 2025-05-01 08:29:51 2460796.8540625 19.7923 0.156634 ABMag g-ZTF P48_ZTF-Cam
485249 2025-04-22 09:08:25 2460787.8808449 21.2746 0.307109 ABMag g-ZTF P48_ZTF-Cam
485248 2025-04-22 09:07:44 2460787.8803704 20.4743 ABMag g-ZTF P48_ZTF-Cam [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
256411 2025-05-24 15:01:09 BlackGEM_Bot1 P. Groot,H. Tranin,F. Stoppa et al. BlackGEM BlackGEM 14:56:15.304 -05:54:37.63 2025-05-20 02:05:32.000 19.42 BG-q-BlackGem 1 PSN BGEM J145615.30-055437.6 BlackGEM N
Related files
File Comments Last Modified (UT) Modified By
tns_2025iww_atrep_256411_BlackGEM.pdf Finding Chart 2025-05-24 15:01:11 BlackGEM_Bot1
254865 2025-05-12 14:53:29 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 14:56:15.306 -05:54:37.38 2025-05-06 14:30:27.072 19.56 L-GOTO Other GOTO25ckw GOTO N
253267 2025-05-01 09:14:55 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 14:56:15.269 -05:54:37.35 2025-04-22 09:08:24.999 21.2746 g-ZTF PSN ZTF25aaoqyej ZTF 2025TNSTR1616....1S N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21239 2025-06-06 22:04:33 Nadejda Blagorodnova Mujortova Nadejda Blagorodnova Mujortova BlackGEM SN Ia 0.1 1 Add BlackGEM, CET-3PO Good match to normal SN Ia and 91bg-like post-peak. 2025TNSCR2126....1M
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
21239 2025-06-01 22:37:21 NOT / ALFOSC 1300 Gerard Garcia-Moreno, Mathias Gort Gerard Garcia-Moreno BlackGEM tns_2025iww_2460828.4426_NOT_ALFOSC_BlackGEM.txt tns_2025iww_2460828.4426_NOT_ALFOSC_BlackGEM.fits Object

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