RA/DEC (2000)
16:59:49.529 +74:04:10.46
254.9563729 +74.06957202
Type
SN Ia
Redshift
0.06
Discovery ReportClassification Report
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2025-06-19 05:45:54.999
TNS AT
Y
Public
Y
Host Name
SDSS J165949.41+740410.5
Discovery Mag
20.2294
Filter
g-ZTF
Reporter/s
A. Munoz-Arancibia, F.E. Bauer, G. Pignata, F. Forster, A. Mourao, S. Jurado, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, F. Andrades, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025obr - 2025-07-03 00:00:00 FTN / FLOYDS-N (StarDestroyers)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_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-HKO_ATLAS-02_orange
   
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
21471 2025-07-03 00:00:00 FTN / FLOYDS-N 3600 Kathryn Wynn StarDestroyers tns_AT_2025obr_2025-07-03_FTN_FLOYDS-N_StarDestroyers.txt tns_AT_2025obr_2025-07-03_FTN_FLOYDS-N_StarDestroyers.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-06-23 00:05:58 - 2025-06-29 22:22:47 2460849.504139 - 2460856.432495 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
499425 2025-06-29 22:22:47 2460856.432495 18.62 0.13 ABMag L-GOTO GOTO-N_GOTO-2 180
499424 2025-06-23 00:05:58 2460849.504139 19.2 ABMag L-GOTO GOTO-N_GOTO-2 360 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-06-17 07:49:39 - 2025-06-19 06:39:22 2460843.8261458 - 2460845.777338 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
496458 2025-06-19 06:39:22 2460845.777338 20.2019 0.168529 20.5119 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
496456 2025-06-17 07:49:39 2460843.8261458 20.2291 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
g-ZTF P48_ZTF-Cam 2025-06-17 06:41:38 - 2025-06-19 05:45:55 2460843.778912 - 2460845.7402199 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
496457 2025-06-19 05:45:55 2460845.7402199 20.2294 0.211275 20.3395 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
498836 2025-06-19 05:45:55 2460845.7402199 20.2294 0.211275 20.3395 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
498835 2025-06-17 06:41:38 2460843.778912 20.4415 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-06-21 12:25:21 - 2025-06-23 09:40:19 2460848.0176 - 2460849.903 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
498287 2025-06-23 09:40:19 2460849.903 18.909 0.157 19.36 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
498286 2025-06-21 12:25:21 2460848.0176 19.23 ABMag orange-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
260591 2025-06-30 06:56:49 GOTO_bot D. O'Neill,G. Ramsay,K. Ackley et al. GOTO GOTO 16:59:49.420 +74:04:10.17 2025-06-29 22:22:47.136 18.62 L-GOTO Other GOTO25emg GOTO N
260323 2025-06-27 18:16:08 Fink Julien Peloton,Anais Moller,Emille E. O. Ishida on behalf of the Fink broker et al. Fink ZTF 16:59:49.529 +74:04:10.46 2025-06-19 05:45:54.999 20.2294 g-ZTF PSN ZTF25aavsjkg ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25aavsjkg N
260070 2025-06-25 21:34:03 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 16:59:49.679 +74:04:10.51 2025-06-23 09:40:19.200 18.909 orange-ATLAS PSN ATLAS25gmg ATLAS N
259176 2025-06-19 18:28:45 ALeRCE A. Munoz-Arancibia,F.E. Bauer,G. Pignata et al. ALeRCE ZTF 16:59:49.540 +74:04:10.40 2025-06-19 05:45:54.999 20.2294 g-ZTF PSN SDSS J165949.41+740410.5 ZTF25aavsjkg ZTF SN candidate classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF25aavsjkg 2025TNSTR2284....1M N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21471 2025-07-04 11:35:09 Sara Faris Sara Faris, Iair Arcavi (TAU), and Kathryn Wynn (Las Cumbres). StarDestroyers SN Ia 0.06 1 StarDestroyers We find the best-fit template of the obtained spectrum corresponds to a Type Ia supernova at a redshift of z = 0.06. The spectrum shows strong similarity to normal SNe Ia at this redshift. The closest galaxy is SDSS J165949.42+740410.5, which we suggest as the likely host. 2025TNSCR2566....1F
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
21471 2025-07-03 00:00:00 FTN / FLOYDS-N 3600 Kathryn Wynn StarDestroyers tns_AT_2025obr_2025-07-03_FTN_FLOYDS-N_StarDestroyers.txt tns_AT_2025obr_2025-07-03_FTN_FLOYDS-N_StarDestroyers.fits Object

Comments

TNS
System

Fri, 06/27/2025 - 18:16

Object coordinates updated

Object coordinates updated according to AT-report 260323 of Group ZTF
Previous RA, DEC: 16:59:49.540, +74:04:10.40 (254.95641864815, +74.06955603668)
Updated RA, DEC: 16:59:49.529, +74:04:10.46 (254.9563729, +74.06957202)