RA/DEC (2000)
04:57:18.700 +45:36:08.39
74.3279163125 +45.6023306625
Type
SN Ia
Redshift
0.02
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-09-14 13:13:52.320
TNS AT
Y
Public
Y
Discovery Mag
18.578
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, P. J. Broda (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_2025xrc - 2025-09-17 14:48:06 UH88 / SNIFS (SCAT)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-N_GOTO-2_L
 ▌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
22046 2025-09-17 14:48:06 UH88 / SNIFS 1500 M. E. Huber SCAT tns_2025xrc_2025-09-17_14-48-06_UH88_SNIFS_SCAT.dat Object Poor dichroic correction for ~490-525 nm
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-09-13 03:50:38 - 2025-09-16 02:33:42 2460931.660161 - 2460934.606736 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
519547 2025-09-16 02:33:42 2460934.606736 18.81 0.17 ABMag L-GOTO GOTO-N_GOTO-2 180
519546 2025-09-13 03:50:38 2460931.660161 18.5 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-09-09 10:24:04 - 2025-09-11 09:47:22 2460927.9333796 - 2460929.9078935 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
519954 2025-09-11 09:47:22 2460929.9078935 19.4942 0.16855 19.5489 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
519953 2025-09-09 10:24:04 2460927.9333796 19.834 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-09-13 13:55:55 - 2025-09-14 13:13:52 2460932.0805 - 2460933.0513 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
517574 2025-09-14 13:13:52 2460933.0513 18.578 0.136 18.85 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
517573 2025-09-13 13:55:55 2460932.0805 18.44 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
271307 2025-09-25 18:17:49 Fink Julien Peloton,Anais Moller,Emille E. O. Ishida on behalf of the Fink broker et al. Fink ZTF 04:57:18.700 +45:36:08.39 2025-09-11 09:47:21.998 19.4942 r-ZTF PSN ZTF25abqaxii ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25abqaxii N
271140 2025-09-24 08:49:42 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 04:57:18.670 +45:36:09.26 2025-09-16 02:33:42.336 18.81 L-GOTO Other GOTO25hpn GOTO N
270251 2025-09-15 21:21:44 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 04:57:18.699 +45:36:08.39 2025-09-14 13:13:52.320 18.578 orange-ATLAS PSN ATLAS25lmg ATLAS 2025TNSTR3706....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
22046 2025-09-17 22:03:51 Mark Huber M. E. Huber (IfA, UH Manoa) on behalf of the SCAT team SCAT SN Ia 0.02 1 ATLAS, SCAT Spectrum matches type Ia SN days before maximum light. Classification, redshift and age from template cross-correlation with SNID (Blondin and Tonry 2007) 2025TNSCR3749....1H
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
22046 2025-09-17 14:48:06 UH88 / SNIFS 1500 M. E. Huber SCAT tns_2025xrc_2025-09-17_14-48-06_UH88_SNIFS_SCAT.dat Object Poor dichroic correction for ~490-525 nm

Comments

TNS
System

Thu, 09/25/2025 - 18:17

Object coordinates updated

Object coordinates updated according to AT-report 271307 of Group ZTF
Previous RA, DEC: 04:57:18.699, +45:36:08.39 (74.3279142857, +45.6023307143)
Updated RA, DEC: 04:57:18.700, +45:36:08.39 (74.3279163125, +45.6023306625)