RA/DEC (2000)
03:27:36.317 -03:46:20.48
51.9013213041 -3.77235424506
Type
SN Ia
Redshift
0.025992
Discovery ReportClassification Report
Related AstroNotes: 2025-243
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-07-29 03:46:34.176
TNS AT
Y
Public
Y
Discovery Mag
17.765
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland, R. Siverd (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 (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle (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_2025som - 2025-08-03 11:36:48 P200 / NGPS (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

 ▌PS2_GPC2_w
 ▌ATLAS-CHL_ATLAS-04_cyan
 ▌ATLAS-STH_ATLAS-03_orange
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌BG2_BlackGEM-Cam2_BG-q
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌PS1_GPC1_i
   
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
21705 2025-08-03 11:36:48 P200 / NGPS Rujula Yete (UNC Chapel Hill), Oleksandra Pyshna, Wynn Jacobson-Galán, Christoffer Fremling (Сaltech) Rujula Yete (UNC Chapel Hill), Oleksandra Pyshna, Wynn Jacobson-Galán, Christoffer Fremling (Сaltech) None tns_2025som_2025-08-03_11-36-48_P200_NGPS_None.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
w-P1 PS2_GPC2 2025-09-14 13:48:06 - 2025-09-14 13:48:06 2460933.07507 - 2460933.07507 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
545251 2025-09-14 13:48:06 2460933.07507 19.28 0.04 22 ABMag w-P1 PS2_GPC2 45 Robot
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-07-23 10:35:22 - 2025-07-23 10:35:22 2460879.94123 - 2460879.94123 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505920 2025-07-23 10:35:22 2460879.94123 18.84 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-07-29 03:46:34 - 2025-07-29 03:46:34 2460885.65734 - 2460885.65734 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505921 2025-07-29 03:46:34 2460885.65734 17.765 0.078 19.03 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-07-08 10:04:16 - 2025-07-08 10:04:16 2460864.9196296 - 2460864.9196296 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
512981 2025-07-08 10:04:16 2460864.9196296 20.99 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic [Last non detection]
BG-q-BlackGem BG2_BlackGEM-Cam2 2025-08-26 08:59:03 - 2025-08-26 08:59:03 2460913.8743403 - 2460913.8743403 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
512982 2025-08-26 08:59:03 2460913.8743403 18.34 0.05 20.8 ABMag BG-q-BlackGem BG2_BlackGEM-Cam2 60 robotic
r-ZTF P48_ZTF-Cam 2025-08-02 10:52:29 - 2025-08-02 10:52:29 2460889.9531134 - 2460889.9531134 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
508265 2025-08-02 10:52:29 2460889.9531134 17.112 0.037133 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-08-12 11:15:15 - 2025-08-12 11:15:15 2460899.9689236 - 2460899.9689236 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
508266 2025-08-12 11:15:15 2460899.9689236 17.5993 0.0328325 ABMag g-ZTF P48_ZTF-Cam
i-P1 PS1_GPC1 2025-08-26 14:48:37 - 2025-08-26 14:48:37 2460914.11709 - 2460914.11709 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
512589 2025-08-26 14:48:37 2460914.11709 18 0.02 20.7 ABMag i-P1 PS1_GPC1 27 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
284017 2025-12-30 19:30:58 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 03:27:36.317 -03:46:20.48 2025-09-14 13:48:06.048 19.28 w-P1 PSN PS25hbn Pan-STARRS N
267962 2025-08-28 07:32:02 BlackGEM_Bot1 G. Ramsay,H. Tranin,F. Stoppa et al. BlackGEM BlackGEM 03:27:36.313 -03:46:20.42 2025-08-26 08:59:03.000 18.34 BG-q-BlackGem PSN BGEM J032736.31-034620.4 BlackGEM N
267780 2025-08-26 22:00:51 YSE_Bot1 D. O. Jones (UC Santa Cruz),K. D. French (Carnegie,Illinois) et al. YSE Pan-STARRS 03:27:36.321 -03:46:20.49 2025-08-26 14:48:36.576 18 i-P1 PSN PS25hbn Pan-STARRS N
265563 2025-08-12 12:18:49 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 03:27:36.313 -03:46:20.42 2025-08-02 10:52:28.997 17.112 r-ZTF PSN ZTF25abgpaex ZTF N
264236 2025-07-29 13:19:15 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 03:27:36.289 -03:46:20.42 2025-07-29 03:46:34.176 17.765 orange-ATLAS PSN ATLAS25ile ATLAS 2025TNSTR2966....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
21705 2025-08-05 19:48:11 Oleksandra Pyshna Rujula Yete (UNC Chapel Hill), Oleksandra Pyshna, Wynn Jacobson-Galán, Christoffer Fremling (Сaltech) None SN Ia 0.025992 1 2025TNSCR3090....1Y
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
21705 2025-08-03 11:36:48 P200 / NGPS Rujula Yete (UNC Chapel Hill), Oleksandra Pyshna, Wynn Jacobson-Galán, Christoffer Fremling (Сaltech) Rujula Yete (UNC Chapel Hill), Oleksandra Pyshna, Wynn Jacobson-Galán, Christoffer Fremling (Сaltech) None tns_2025som_2025-08-03_11-36-48_P200_NGPS_None.txt Object

Comments

TNS
System

Tue, 12/30/2025 - 19:30

Object coordinates updated

Object coordinates updated according to AT-report 284017 of Group Pan-STARRS
Previous RA, DEC: 03:27:36.321, -03:46:20.49 (51.9013381498, -3.77235936505)
Updated RA, DEC: 03:27:36.317, -03:46:20.48 (51.9013213041, -3.77235424506)

TNS
System

Tue, 08/26/2025 - 22:00

Object coordinates updated

Object coordinates updated according to AT-report 267780 of Group Pan-STARRS
Previous RA, DEC: 03:27:36.313, -03:46:20.42 (51.9013047, -3.7723382)
Updated RA, DEC: 03:27:36.321, -03:46:20.49 (51.9013381498, -3.77235936505)

TNS
System

Tue, 08/12/2025 - 12:18

Object coordinates updated

Object coordinates updated according to AT-report 265563 of Group ZTF
Previous RA, DEC: 03:27:36.289, -03:46:20.42 (51.901204, -3.77234)
Updated RA, DEC: 03:27:36.313, -03:46:20.42 (51.9013047, -3.7723382)