RA/DEC (2000)
19:18:40.028 -34:55:08.30
289.666784028 -34.9189709286
Type
SN Ia
Redshift
0.016
Discovery ReportClassification Report
Related AstroNotes: 2025-252
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-08-03 22:06:23.040
TNS AT
Y
Public
Y
Discovery Mag
18.335
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_2025ter - 2025-08-11 04:31:15 ESO-NTT / EFOSC2-NTT (ePESSTO+)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-S_GOTO-4_L
 ▌ATLAS-STH_ATLAS-03_orange
 ▌ATLAS-HKO_ATLAS-02_orange
 ▌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
21755 2025-08-11 04:31:15 ESO-NTT / EFOSC2-NTT 1200 Joyce Naomi Dominique van Dalen, Daniele Bjørn Malesani Antonio Martin-Carrillo, Gregory Corcoran, Laura Cotter ePESSTO+ tns_2025ter_2025-08-11_04-31-15_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025ter_2025-08-11_04-31-15_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-07-18 13:20:25 - 2025-09-15 13:03:05 2460875.055836 - 2460934.043811 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
517640 2025-09-15 13:03:05 2460934.043811 18.57 0.11 ABMag L-GOTO GOTO-S_GOTO-4 180
517639 2025-07-18 13:20:25 2460875.055836 20 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-08-03 22:06:23 - 2025-08-03 22:06:23 2460891.4211 - 2460891.4211 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
507341 2025-08-03 22:06:23 2460891.4211 18.335 0.146 18.8 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-07-30 10:24:57 - 2025-07-30 10:24:57 2460886.93399 - 2460886.93399 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
507340 2025-07-30 10:24:57 2460886.93399 19.16 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
w-P1 PS1_GPC1 2025-08-19 06:51:32 - 2025-08-19 06:51:32 2460906.78579 - 2460906.78579 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514272 2025-08-19 06:51:32 2460906.78579 16.7 0.01 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
270281 2025-09-16 07:14:30 GOTO_bot D. O'Neill,G. Ramsay,K. Ackley et al. GOTO GOTO 19:18:40.007 -34:55:08.04 2025-09-15 13:03:05.184 18.57 L-GOTO Other GOTO25hbw GOTO N
268650 2025-08-30 17:27:22 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 19:18:40.028 -34:55:08.30 2025-08-19 06:51:32.256 16.7 w-P1 PSN PS25hgc Pan-STARRS N
264978 2025-08-04 00:47:55 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 19:18:40.066 -34:55:08.11 2025-08-03 22:06:23.040 18.335 orange-ATLAS PSN ATLAS25jao ATLAS 2025TNSTR3062....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
21755 2025-08-11 16:13:54 ePESSTOplus_Bot1 Joyce Naomi Dominique van Dalen, Daniele Bjørn Malesani, Antonio Martin-Carrillo, Gregory Corcoran, Laura Cotter, A. Horowicz on behalf of ePESSTO+ ePESSTO+ SN Ia 0.016 1 ePESSTO+ 2025TNSCR3147....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
21755 2025-08-11 04:31:15 ESO-NTT / EFOSC2-NTT 1200 Joyce Naomi Dominique van Dalen, Daniele Bjørn Malesani Antonio Martin-Carrillo, Gregory Corcoran, Laura Cotter ePESSTO+ tns_2025ter_2025-08-11_04-31-15_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025ter_2025-08-11_04-31-15_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Sat, 08/30/2025 - 17:27

Object coordinates updated

Object coordinates updated according to AT-report 268650 of Group Pan-STARRS
Previous RA, DEC: 19:18:40.066, -34:55:08.11 (289.66694, -34.91892)
Updated RA, DEC: 19:18:40.028, -34:55:08.30 (289.666784028, -34.9189709286)