RA/DEC (2000)
14:17:59.390 +26:24:52.71
214.497460145 +26.414641315
Type
SN Ia
Redshift
0.014744
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-11-27 15:11:00.096
TNS AT
Y
Public
Y
Discovery Mag
16.003
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), M. R. Alarcón, J. Licandro, P. Nichita (IAC), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill, P. J. Broda, A. J. Smith (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle, L. Eastman (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025afdy - 2025-12-01 12:49:47 P60 / SEDM (ZTF)z=
 ▌SN_2025afdy - 2025-11-30 04:22:00 BL41 / FOSC-E5535 (None)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
 ▌PS2_GPC2_i
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_r
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌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
22542 2025-12-01 12:49:47 P60 / SEDM 2160 SEDmRobot ZTF tns_2025afdy_2025-12-01_12-49-46.697225_P60_SEDM_ZTF.ascii Object
22472 2025-11-30 04:22:00 BL41 / FOSC-E5535 900 Claudio Balcon Claudio Balcon None tns_2025afdy_2025-11-30_04-22-00_BL41_FOSC-E5535_None.dat tns_2025afdy_2025-11-30_04-22-00_BL41_FOSC-E5535_None.fit Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-12-05 06:34:27 - 2025-12-05 06:34:27 2461014.773921 - 2461014.773921 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
536086 2025-12-05 06:34:27 2461014.773921 16.01 0.02 ABMag L-GOTO GOTO-N_GOTO-2 180
i-P1 PS2_GPC2 2026-01-07 15:17:54 - 2026-01-07 15:17:54 2461048.13743 - 2461048.13743 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
547565 2026-01-07 15:17:54 2461048.13743 17.59 0.02 20.7 ABMag i-P1 PS2_GPC2 45 Robot
L-GOTO GOTO-N_GOTO-1 2025-07-26 22:33:45 - 2025-07-26 22:33:45 2460883.440097 - 2460883.440097 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
536085 2025-07-26 22:33:45 2460883.440097 19.9 ABMag L-GOTO GOTO-N_GOTO-1 360 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-12-04 12:18:34 - 2025-12-04 12:18:34 2461014.0128935 - 2461014.0128935 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
535979 2025-12-04 12:18:34 2461014.0128935 15.9428 0.0356138 18.6248 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-11-27 15:11:00 - 2025-11-27 15:11:00 2461007.13264 - 2461007.13264 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
534604 2025-11-27 15:11:00 2461007.13264 16.003 0.02 18.87 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-09-11 05:48:54 - 2025-09-11 05:48:54 2460929.74229 - 2460929.74229 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
534603 2025-09-11 05:48:54 2460929.74229 19.08 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
286026 2026-01-08 17:23:35 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 14:17:59.390 +26:24:52.71 2026-01-07 15:17:53.952 17.59 i-P1 PSN PS26an Pan-STARRS N
279365 2025-12-05 09:34:27 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 14:17:59.389 +26:24:52.82 2025-12-05 06:34:26.688 16.01 L-GOTO Other GOTO25lbr GOTO N
279334 2025-12-04 15:34:12 ALeRCE A. Munoz-Arancibia,G. Pignata,F.E. Bauer et al. ALeRCE ZTF 14:17:59.411 +26:24:52.46 2025-12-04 12:18:33.998 15.9428 r-ZTF PSN IC 4397 ZTF25acfgklb 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/ZTF25acfgklb N
278623 2025-11-28 19:55:23 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland (IfA et al. ATLAS ATLAS 14:17:59.396 +26:24:52.65 2025-11-27 15:11:00.096 16.003 orange-ATLAS PSN ATLAS25pci ATLAS 2025TNSTR4744....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
22541 2025-12-08 21:24:31 ZTF_Bot1 J. Sollerman, J. Castaneda Jaimes, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN Ia 0.014744 1 ZTF 2025TNSCR4887....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
22542 2025-12-01 12:49:47 P60 / SEDM 2160 SEDmRobot ZTF tns_2025afdy_2025-12-01_12-49-46.697225_P60_SEDM_ZTF.ascii Object
22471 2025-11-30 04:58:22 Claudio Balcon Claudio Balcon (Belluno A.O. ISSP) None SN Ia 0.014744 1 GELATO Harutyunyan et al., 2008, A&A, 488, 383 (gelato@tng.iac.es) suggests that this spectrum resembles that of a type Ia supernova about two weeks after peak at the redshift of the host galaxy, value from NED. 2025TNSCR4774....1B
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
22472 2025-11-30 04:22:00 BL41 / FOSC-E5535 900 Claudio Balcon Claudio Balcon None tns_2025afdy_2025-11-30_04-22-00_BL41_FOSC-E5535_None.dat tns_2025afdy_2025-11-30_04-22-00_BL41_FOSC-E5535_None.fit Object

Comments

TNS
System

Thu, 01/08/2026 - 17:23

Object coordinates updated

Object coordinates updated according to AT-report 286026 of Group Pan-STARRS
Previous RA, DEC: 14:17:59.411, +26:24:52.46 (214.4975449, +26.4145736)
Updated RA, DEC: 14:17:59.390, +26:24:52.71 (214.497460145, +26.414641315)

TNS
System

Fri, 12/05/2025 - 09:34

Object coordinates updated

Object coordinates updated according to AT-report 279334 of Group ZTF
Previous RA, DEC: 14:17:59.411, +26:24:52.46 (214.4975449, +26.4145736)
Updated RA, DEC: 14:17:59.411, +26:24:52.46 (214.4975449, +26.4145736)

TNS
System

Thu, 12/04/2025 - 15:34

Object coordinates updated

Object coordinates updated according to AT-report 279334 of Group ZTF
Previous RA, DEC: 14:17:59.396, +26:24:52.65 (214.497485, +26.414625)
Updated RA, DEC: 14:17:59.411, +26:24:52.46 (214.4975449, +26.4145736)