RA/DEC (2000)
02:06:36.960 +15:13:11.22
31.6539979791 +15.2197837818
Type
SN Ia
Redshift
0.043
Discovery ReportClassification Report
Related AstroNotes: 2025-304
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2025-10-13 06:56:24.996
TNS AT
Y
Public
Y
Discovery Mag
18.9042
Filter
r-ZTF
Reporter/s
Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025aafh - 2025-10-21 04:39:05 NOT / ALFOSC (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

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌LAST_LAST-Cam_Clear
 ▌PS2_GPC2_w
 ▌GOTO-N_GOTO-1_L
 ▌BG3_BlackGEM-Cam3_BG-q
 ▌BG2_BlackGEM-Cam2_BG-q
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌PS1_GPC1_w
   
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
22264 2025-10-21 04:39:05 NOT / ALFOSC 2000 Jouni Valkjärvi, Emma Johtela, Emily Sageser, Uliana Pylypenko None tns_2025aafh_2025-10-21_04-39-05_NOT_ALFOSC_None.txt tns_2025aafh_2025-10-21_04-39-05_NOT_ALFOSC_None.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-10-11 03:31:18 - 2025-10-12 02:28:25 2460959.64674 - 2460960.60307 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
524045 2025-10-12 02:28:25 2460960.60307 19.362 0.139 19.73 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
524044 2025-10-11 03:31:18 2460959.64674 19.4 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
Clear- LAST_LAST-Cam 2025-09-02 00:01:59 - 2025-10-24 20:13:58 2460920.50138 - 2460973.34303 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
526635 2025-10-24 20:13:58 2460973.34303 18.86 ABMag Clear- LAST_LAST-Cam 400
526634 2025-09-02 00:01:59 2460920.50138 20.72 ABMag Clear- LAST_LAST-Cam 400 [Last non detection]
w-P1 PS2_GPC2 2025-11-23 06:21:25 - 2025-11-23 06:21:25 2461002.76487 - 2461002.76487 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
540269 2025-11-23 06:21:25 2461002.76487 19.43 0.04 22 ABMag w-P1 PS2_GPC2 45 Robot
L-GOTO GOTO-N_GOTO-1 2025-10-06 03:21:55 - 2025-10-11 02:17:28 2460954.640219 - 2460959.595464 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
524860 2025-10-11 02:17:28 2460959.595464 19.5 0.19 ABMag L-GOTO GOTO-N_GOTO-1 180
524859 2025-10-06 03:21:55 2460954.640219 18.9 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
BG-q-BlackGem BG3_BlackGEM-Cam3 2025-09-16 07:07:57 - 2025-09-16 07:07:57 2460934.7971875 - 2460934.7971875 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
527396 2025-09-16 07:07:57 2460934.7971875 20.74 ABMag BG-q-BlackGem BG3_BlackGEM-Cam3 60 robotic [Last non detection]
BG-q-BlackGem BG2_BlackGEM-Cam2 2025-10-28 03:45:33 - 2025-10-28 03:45:33 2460976.6566319 - 2460976.6566319 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
527397 2025-10-28 03:45:33 2460976.6566319 18.57 0.09 20.45 ABMag BG-q-BlackGem BG2_BlackGEM-Cam2 60 robotic
r-ZTF P48_ZTF-Cam 2025-10-13 06:56:25 - 2025-10-13 06:56:25 2460961.7891782 - 2460961.7891782 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
523440 2025-10-13 06:56:25 2460961.7891782 18.9042 0.0955133 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-10-13 05:42:39 - 2025-10-13 08:19:19 2460961.7379514 - 2460961.8467477 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
523441 2025-10-13 08:19:19 2460961.8467477 19.6963 0.168421 ABMag g-ZTF P48_ZTF-Cam
523439 2025-10-13 05:42:39 2460961.7379514 20.1659 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
w-P1 PS1_GPC1 2025-10-12 12:29:39 - 2025-10-12 12:29:39 2460961.02059 - 2460961.02059 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
523614 2025-10-12 12:29:39 2460961.02059 19.12 0.03 22 ABMag w-P1 PS1_GPC1 45 Robot
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
281235 2025-12-18 14:38:48 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 02:06:36.960 +15:13:11.22 2025-11-23 06:21:24.768 19.43 w-P1 PSN PS25ich Pan-STARRS N
275034 2025-10-28 08:00:03 BlackGEM_Bot1 G. Ramsay,H. Tranin,F. Stoppa et al. BlackGEM BlackGEM 02:06:36.956 +15:13:11.50 2025-10-28 03:45:33.000 18.57 BG-q-BlackGem PSN BGEM J020636.96+151311.5 BlackGEM N
274701 2025-10-24 20:32:03 LAST_Bot1 R. Konno (WIS),E. A. Zimmerman (WIS),A. Horowicz (WIS) et al. LAST LAST 02:06:36.938 +15:13:11.21 2025-10-24 20:13:57.792 18.86 Clear- PSN LAST N
273901 2025-10-19 10:41:13 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 02:06:36.963 +15:13:11.75 2025-10-11 02:17:27.744 19.5 L-GOTO Other GOTO25irq GOTO N
273456 2025-10-15 12:47:35 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 02:06:36.917 +15:13:11.72 2025-10-12 02:28:25.248 19.362 wide-ATLAS PSN ATLAS25msb ATLAS N
273210 2025-10-14 00:39:43 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 02:06:36.960 +15:13:11.23 2025-10-12 12:29:38.976 19.12 w-P1 PSN PS25ich Pan-STARRS N
273141 2025-10-13 11:21:52 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 02:06:36.947 +15:13:11.28 2025-10-13 06:56:24.996 18.9042 r-ZTF PSN ZTF25abwrrpt ZTF 2025TNSTR4104....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
22264 2025-10-21 13:34:06 Tuomas Kangas Jouni Valkjärvi, Emma Johtela, Emily Sageser, Uliana Pylypenko, Tuomas Kangas, Christina Humina, Erkki Kankare (University of Turku), Niko Pyykkinen (NOT) None SN Ia 0.043 1 Classification was done using SNID (Blondin & Tonry 2007 2007ApJ...666.1024B) as part of a remote observing course at the University of Turku. AT 2025aafh is reproduced well by a SN Ia spectrum (normal or 91T-type) slightly before peak brightness. The redshift of AT 2025aafh was obtained from the NASA/IPAC Extragalactic Database (host galaxy CGCG 438-028). 2025TNSCR4231....1V
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
22264 2025-10-21 04:39:05 NOT / ALFOSC 2000 Jouni Valkjärvi, Emma Johtela, Emily Sageser, Uliana Pylypenko None tns_2025aafh_2025-10-21_04-39-05_NOT_ALFOSC_None.txt tns_2025aafh_2025-10-21_04-39-05_NOT_ALFOSC_None.fits Object

Comments

TNS
System

Thu, 12/18/2025 - 14:38

Object coordinates updated

Object coordinates updated according to AT-report 281235 of Group Pan-STARRS
Previous RA, DEC: 02:06:36.960, +15:13:11.23 (31.6540013251, +15.219786208)
Updated RA, DEC: 02:06:36.960, +15:13:11.22 (31.6539979791, +15.2197837818)

TNS
System

Tue, 10/14/2025 - 00:39

Object coordinates updated

Object coordinates updated according to AT-report 273210 of Group Pan-STARRS
Previous RA, DEC: 02:06:36.947, +15:13:11.28 (31.6539467, +15.2198002)
Updated RA, DEC: 02:06:36.960, +15:13:11.23 (31.6540013251, +15.219786208)