RA/DEC (2000)
15:57:43.578 +27:27:52.03
239.4315765 +27.4644528
Type
SN Ia
Redshift
0.03156
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-01-06 14:46:43.392
TNS AT
Y
Public
Y
Discovery Mag
18.391
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), 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 (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_2025gr - 2025-01-09 15:48:59 UH88 / SNIFS (SCAT)z=
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Show [Ca II] at z=vexp= km/s
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 GOTO-N_GOTO-1_L_
 P48_ZTF-Cam_r_
 P48_ZTF-Cam_g_
 ATLAS-MLO_ATLAS-01_orange_
 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
20168 2025-01-09 15:48:59 UH88 / SNIFS 1800 Hinkle SCAT tns_2025gr_2025-01-09_15-48-59_UH88_SNIFS_SCAT.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-1 2024-12-19 06:45:23 - 2025-01-10 05:56:46 2460663.781519 - 2460685.747753 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
461899 2025-01-10 05:56:46 2460685.747753 17.88 0.06 ABMag L-GOTO GOTO-N_GOTO-1 180
461898 2024-12-19 06:45:23 2460663.781519 17.1 ABMag L-GOTO GOTO-N_GOTO-1 135 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-01-06 13:23:43 - 2025-01-12 12:25:29 2460682.0581366 - 2460688.0176968 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
462088 2025-01-12 12:25:29 2460688.0176968 17.3996 0.0647372 ABMag r-ZTF P48_ZTF-Cam
462087 2025-01-06 13:23:43 2460682.0581366 18.5336 0.110824 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-01-04 13:21:01 - 2025-01-04 13:21:01 2460680.0562616 - 2460680.0562616 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
462086 2025-01-04 13:21:01 2460680.0562616 19.7904 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-01-04 15:17:21 - 2025-01-04 15:17:21 2460680.13705 - 2460680.13705 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
461652 2025-01-04 15:17:21 2460680.13705 19.49 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-01-06 14:46:43 - 2025-01-06 14:46:43 2460682.11578 - 2460682.11578 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
461653 2025-01-06 14:46:43 2460682.11578 18.391 0.129 19.36 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 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 Bibcode Unreal Auto classification
241018 2025-01-12 12:34:24 Fritz Nabeel Rehemtulla (CIERA,NU),Christoffer Fremling (Caltech) et al. ZTF ZTF 15:57:43.578 +27:27:52.03 2025-01-06 13:23:43.002 18.5336 r-ZTF PSN ZTF25aaazubi ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
240933 2025-01-10 10:30:00 GOTO_bot A. Kumar,G. Ramsay,K. Ackley et al. GOTO GOTO 15:57:43.592 +27:27:51.94 2025-01-10 05:56:45.600 17.88 L-GOTO Other GOTO25fp GOTO N
240812 2025-01-08 23:36:01 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 15:57:43.572 +27:27:52.41 2025-01-06 14:46:43.392 18.391 orange-ATLAS PSN ATLAS25aid ATLAS 2025TNSTR.104....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
20168 2025-01-15 12:54:46 Jason Hinkle Jason Hinkle (UH/IfA) on behalf of SCAT SCAT SN Ia 0.03156 1 SCAT The redshift is from the archival SDSS host spectrum. Cross-correlation with SNID (Blondin & Tonry 2007) gives matches to normal SNe Ia at this redshift. 2025TNSCR.199....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
20168 2025-01-09 15:48:59 UH88 / SNIFS 1800 Hinkle SCAT tns_2025gr_2025-01-09_15-48-59_UH88_SNIFS_SCAT.dat Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 241018 of Group ZTF
Previous RA, DEC: 15:57:43.572, +27:27:52.41 (239.431548, +27.464557)
Updated RA, DEC: 15:57:43.578, +27:27:52.03 (239.4315765, 27.4644528)