RA/DEC (2000)
00:11:57.955 +21:46:29.76
2.99147795091 +21.774934699
Type
SN Ia
Redshift
0.08
Related AstroNotes: 2025-228
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-07-19 01:11:34.944
TNS AT
Y
Public
Y
Discovery Mag
19.033
Filter
wide-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)

Spectra

 SN_2025rob - 2025-07-24 07:56:45 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
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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
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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
 GOTO-N_GOTO-2_L
 GOTO-N_GOTO-1_L
 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
21629 2025-07-24 07:56:45 ESO-NTT / EFOSC2-NTT 1200 G. Martins, R. Santos S. González-Gaitán, J. Duarte ePESSTO+ tns_2025rob_2025-07-24_07-56-45_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025rob_2025-07-24_07-56-45_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-07-16 02:49:00 - 2025-07-19 01:11:35 2460872.61736 - 2460875.54971 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
503601 2025-07-19 01:11:35 2460875.54971 19.033 0.143 19.51 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
503600 2025-07-16 02:49:00 2460872.61736 18.31 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot [Last non detection]
L-GOTO GOTO-N_GOTO-2 2025-07-13 03:38:04 - 2025-07-13 03:38:04 2460869.651445 - 2460869.651445 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
506045 2025-07-13 03:38:04 2460869.651445 18.8 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-07-29 04:22:35 - 2025-07-29 04:22:35 2460885.682354 - 2460885.682354 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
506046 2025-07-29 04:22:35 2460885.682354 19.61 0.14 ABMag L-GOTO GOTO-N_GOTO-1 360
r-ZTF P48_ZTF-Cam 2025-06-30 10:09:02 - 2025-06-30 10:09:02 2460856.9229398 - 2460856.9229398 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
504559 2025-06-30 10:09:02 2460856.9229398 20.8458 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-07-03 09:13:47 - 2025-07-24 07:52:20 2460859.8845718 - 2460880.8280093 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
504561 2025-07-24 07:52:20 2460880.8280093 19.4063 0.062946 ABMag g-ZTF P48_ZTF-Cam
504560 2025-07-03 09:13:47 2460859.8845718 20.8115 0.217027 ABMag g-ZTF P48_ZTF-Cam
i-P1 PS1_GPC1 2025-07-26 12:58:58 - 2025-07-26 12:58:58 2460883.04095 - 2460883.04095 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
505463 2025-07-26 12:58:58 2460883.04095 19.65 0.05 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
264285 2025-07-29 22:30:35 GOTO_bot A. Kumar,D. O'Neill,K. Ackley et al. GOTO GOTO 00:11:57.983 +21:46:29.30 2025-07-29 04:22:35.040 19.61 L-GOTO Other GOTO25fmd GOTO N
263994 2025-07-27 12:07:00 YSE_Bot1 D. O. Jones (UC Santa Cruz),K. D. French (Carnegie,Illinois) et al. YSE Pan-STARRS 00:11:57.955 +21:46:29.76 2025-07-26 12:58:58.080 19.65 i-P1 PSN PS25fjk Pan-STARRS N
263571 2025-07-24 10:10:59 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 00:11:57.951 +21:46:29.78 2025-07-03 09:13:47.003 20.8115 g-ZTF PSN ZTF25aazqalk ZTF N
263051 2025-07-20 01:04:52 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 00:11:57.955 +21:46:29.95 2025-07-19 01:11:34.944 19.033 wide-ATLAS PSN ATLAS25hxs ATLAS 2025TNSTR2782....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
21629 2025-07-24 19:15:51 ePESSTOplus_Bot1 G. Martins, R. Santos, S. González-Gaitán, J. Duarte, O. Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia 0.08 1 ePESSTO+ 2025TNSCR2879....1M
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
21629 2025-07-24 07:56:45 ESO-NTT / EFOSC2-NTT 1200 G. Martins, R. Santos S. González-Gaitán, J. Duarte ePESSTO+ tns_2025rob_2025-07-24_07-56-45_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025rob_2025-07-24_07-56-45_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 263994 of Group Pan-STARRS
Previous RA, DEC: 00:11:57.951, +21:46:29.78 (2.9914644, +21.774938)
Updated RA, DEC: 00:11:57.955, +21:46:29.76 (2.99147795091, +21.774934699)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 263571 of Group ZTF
Previous RA, DEC: 00:11:57.955, +21:46:29.95 (2.99147833333, +21.774985)
Updated RA, DEC: 00:11:57.951, +21:46:29.78 (2.9914644, +21.774938)