RA/DEC (2000)
17:08:43.347 +33:20:42.13
257.180611762 +33.3450361358
Type
SN Ia-91T-like
Redshift
0.055
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-04-05 12:49:47.712
TNS AT
Y
Public
Y
Discovery Mag
18.948
Filter
cyan-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), 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_2025gxf - 2025-04-29 17:41:53 Lick-3m / KAST (UCSC)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_y
 ▌GOTO-N_GOTO-1_L
 ▌ATLAS-HKO_ATLAS-02_cyan
   
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
21003 2025-04-29 17:41:53 Lick-3m / KAST 1500 P. Arunachalam (UCSC), K.C. Patra (UCSC) UCSC tns_2025gxf_2025-04-29_17-41-53_Lick-3m_KAST_UCSC.flm Object We measure a Si II 6355 velocity of -10,200 km/s
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
y-P1 PS2_GPC2 2025-04-09 13:40:38 - 2025-04-09 13:40:38 2460775.06988 - 2460775.06988 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
481656 2025-04-09 13:40:38 2460775.06988 18.82 0.11 18.3 ABMag y-P1 PS2_GPC2 27 Robot
L-GOTO GOTO-N_GOTO-1 2025-02-23 03:29:10 - 2025-04-05 01:37:41 2460729.645251 - 2460770.567837 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
481145 2025-04-05 01:37:41 2460770.567837 19.25 0.18 ABMag L-GOTO GOTO-N_GOTO-1 180
481144 2025-02-23 03:29:10 2460729.645251 19.5 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
cyan-ATLAS ATLAS-HKO_ATLAS-02 2025-04-04 12:34:32 - 2025-04-05 12:49:48 2460770.02398 - 2460771.03458 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
481112 2025-04-05 12:49:48 2460771.03458 18.948 0.124 19.52 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
481111 2025-04-04 12:34:32 2460770.02398 18.93 ABMag cyan-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
251342 2025-04-09 20:49:04 YSE_Bot1 D. O. Jones (UC Santa Cruz),K. D. French (Carnegie,Illinois) et al. YSE Pan-STARRS 17:08:43.347 +33:20:42.13 2025-04-09 13:40:37.632 18.82 y-P1 PSN PS25bei Pan-STARRS N
251124 2025-04-07 07:24:00 GOTO_bot A. Kumar,D. O'Neill,K. Ackley et al. GOTO GOTO 17:08:43.358 +33:20:42.39 2025-04-05 01:37:41.376 19.25 L-GOTO Other GOTO25btb GOTO N
251111 2025-04-07 05:24:05 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 17:08:43.349 +33:20:42.42 2025-04-05 12:49:47.712 18.948 cyan-ATLAS PSN ATLAS25dpz ATLAS 2025TNSTR1310....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
21003 2025-05-08 20:50:23 Prasiddha Arunachalam Prasiddha Arunachalam UCSC SN Ia-91T-like 0.055 1 Add UCSC 2025TNSCR1722....1A
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
21003 2025-04-29 17:41:53 Lick-3m / KAST 1500 P. Arunachalam (UCSC), K.C. Patra (UCSC) UCSC tns_2025gxf_2025-04-29_17-41-53_Lick-3m_KAST_UCSC.flm Object We measure a Si II 6355 velocity of -10,200 km/s

Comments

TNS
System

Wed, 04/09/2025 - 20:49

Object coordinates updated

Object coordinates updated according to AT-report 251342 of Group Pan-STARRS
Previous RA, DEC: 17:08:43.349, +33:20:42.42 (257.18062, +33.3451157143)
Updated RA, DEC: 17:08:43.347, +33:20:42.13 (257.180611762, +33.3450361358)