RA/DEC (2000)
20:27:35.014 -29:01:18.46
306.8958925 -29.02179375
Type
SN Ia
Redshift
0.105
Discovery ReportClassification Report
Related AstroNotes: 2025-220
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-06-26 12:24:48.672
TNS AT
Y
Public
Y
Discovery Mag
19.78
Filter
L-GOTO
Reporter/s
A. Kumar, D. O'Neill, K. Ackley, M. Dyer, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, B. Godson, T. Killestein, M. Pursiainen, on behalf of GOTO collaboration
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025pbc - 2025-07-18 09:42:26 ESO-NTT / EFOSC2-NTT (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-S_GOTO-4_L
 ▌GOTO-N_GOTO-2_L
 ▌ATLAS-STH_ATLAS-03_cyan
 ▌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
21575 2025-07-18 09:42:26 ESO-NTT / EFOSC2-NTT 1200 G. Csoernyei G. Csoernyei None tns_2025pbc_2025-07-18_09-42-25.611_ESO-NTT_EFOSC2-NTT_None.asci tns_2025pbc_2025-07-18_09-42-25.611_ESO-NTT_EFOSC2-NTT_None.fits Object Quick-reduction spectrum
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-06-26 12:24:49 - 2025-06-26 12:24:49 2460853.017229 - 2460853.017229 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
498538 2025-06-26 12:24:49 2460853.017229 19.78 0.19 ABMag L-GOTO GOTO-S_GOTO-4 360
L-GOTO GOTO-N_GOTO-2 2025-06-22 04:04:20 - 2025-06-22 04:04:20 2460848.669675 - 2460848.669675 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
498537 2025-06-22 04:04:20 2460848.669675 19.5 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
cyan-ATLAS ATLAS-STH_ATLAS-03 2025-06-29 22:34:47 - 2025-06-29 22:34:47 2460856.44082 - 2460856.44082 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
499552 2025-06-29 22:34:47 2460856.44082 19.35 0.131 19.83 ABMag cyan-ATLAS ATLAS-STH_ATLAS-03 30 Robot
cyan-ATLAS ATLAS-HKO_ATLAS-02 2025-06-28 12:31:44 - 2025-06-28 12:31:44 2460855.02204 - 2460855.02204 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
499551 2025-06-28 12:31:44 2460855.02204 19.16 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
260651 2025-06-30 16:42:12 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 20:27:35.014 -29:01:18.46 2025-06-29 22:34:46.848 19.35 cyan-ATLAS PSN ATLAS25gqv ATLAS N
260183 2025-06-26 17:35:05 GOTO_bot A. Kumar, D. O'Neill, K. Ackley et al. GOTO GOTO 20:27:35.018 -29:01:18.72 2025-06-26 12:24:48.672 19.78 L-GOTO Other GOTO25eho GOTO 2025TNSTR2409....1K N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21575 2025-07-19 21:34:16 Geza Csornyei G. Csoernyei, M. Vioque, M. Mirabile (ESO), G. Fernandes Goncalves (Federal University of Technology), L. Hauer (University of Vienna), P. M. Lequizamon Pineda (Università degli Studi di Padova), A. Moore (University College Cork), E. Nilson (Lund University), A. Pisapia (INAF-OAS), J. Willingham (Macquarie University) None SN Ia 0.105 1 1 GELATO (Harutyunyan et al. 2008, 2008A&A...488..383H) finds good matches with SN 1994D at a redshift of 0.105. The redshift was adopted from the template matching. 2025TNSCR2777....1C
Related files
File Comments Last Modified (UT) Modified By
tns_2025pbc_atrep_21575.png GELATO comparison plot 2025-07-19 21:34:16 Geza Csornyei
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
21575 2025-07-18 09:42:26 ESO-NTT / EFOSC2-NTT 1200 G. Csoernyei G. Csoernyei None tns_2025pbc_2025-07-18_09-42-25.611_ESO-NTT_EFOSC2-NTT_None.asci tns_2025pbc_2025-07-18_09-42-25.611_ESO-NTT_EFOSC2-NTT_None.fits Object Quick-reduction spectrum

Comments

TNS
System

Mon, 06/30/2025 - 16:42

Object coordinates updated

Object coordinates updated according to AT-report 260651 of Group ATLAS
Previous RA, DEC: 20:27:35.018, -29:01:18.72 (306.89591, -29.021866)
Updated RA, DEC: 20:27:35.014, -29:01:18.46 (306.8958925, -29.02179375)