RA/DEC (2000)
14:05:56.873 +09:01:26.15
211.4869708 +9.0239297
Type
SN Ia
Redshift
0.02331
Discovery ReportClassification Report
Related AstroNotes: 2025-257
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-08-13 06:05:15.360
TNS AT
Y
Public
Y
Discovery Mag
19.012
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_2025tta - 2025-08-15 04:21:26 P60 / SEDM (ZTF)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

 ▌P48_ZTF-Cam_r
 ▌ATLAS-HKO_ATLAS-02_orange
   
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
21785 2025-08-15 04:21:26 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025tta_2025-08-15_04-21-26.447499_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-ZTF P48_ZTF-Cam 2025-08-11 04:00:37 - 2025-08-14 03:56:12 2460898.6670949 - 2460901.6640278 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
508604 2025-08-14 03:56:12 2460901.6640278 18.5011 0.0732655 ABMag r-ZTF P48_ZTF-Cam
508603 2025-08-13 03:49:08 2460900.6591204 19.0989 0.0590139 ABMag r-ZTF P48_ZTF-Cam
508602 2025-08-11 04:00:37 2460898.6670949 19.7043 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-08-09 07:03:17 - 2025-08-13 06:05:15 2460896.79395 - 2460900.75365 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
508496 2025-08-13 06:05:15 2460900.75365 19.012 0.091 19.67 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 110 Robot
508495 2025-08-09 07:03:17 2460896.79395 18.17 ABMag orange-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
265734 2025-08-14 06:18:22 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 14:05:56.873 +09:01:26.15 2025-08-13 03:49:08.002 19.0989 r-ZTF PSN ZTF25abigmxz ZTF N
265675 2025-08-13 12:56:17 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 14:05:56.912 +09:01:25.88 2025-08-13 06:05:15.360 19.012 orange-ATLAS PSN ATLAS25jho ATLAS 2025TNSTR3176....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
21785 2025-08-15 05:43:39 ZTF_Bot1 J. Sollerman, S. Covarrubias, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN Ia 0.02331 1 ZTF 2025TNSCR3222....1S
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
21785 2025-08-15 04:21:26 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025tta_2025-08-15_04-21-26.447499_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Thu, 08/14/2025 - 06:18

Object coordinates updated

Object coordinates updated according to AT-report 265734 of Group ZTF
Previous RA, DEC: 14:05:56.912, +09:01:25.88 (211.487132, +9.023856)
Updated RA, DEC: 14:05:56.873, +09:01:26.15 (211.4869708, +9.0239297)