2025afti | Transient Name Server

RA/DEC (2000)

08:47:21.236 -25:31:58.91

131.8384815 -25.5330311

Type

SN Ia

Redshift

0.06

Discovery Report Classification Report

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2025-12-03 12:09:13.824

TNS AT

Y

Public

Y

Discovery Mag

18.377

Filter

orange-ATLAS

Reporter/s

J. Tonry, L. Denneau, H. Weiland (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, A. J. Smith (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle, L. Eastman (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

GOTO-S_GOTO-4_L

▌

P48_ZTF-Cam_r

▌

P48_ZTF-Cam_g

▌

ATLAS-HKO_ATLAS-02_orange

Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)

Spectra

Select	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
	22589	2025-12-14 00:00:00	UH88 / SNIFS		C. Angus		SCAT	tns_2025afti_2025-12-14_UH88_SNIFS_SCAT.dat		Object
Binning factor: (rounded to nearest integer >1) Mouse hovers at WL: 0 (rest), 0 (observed) ▌Show H at z=v_exp= km/s ▌Show He at z=v_exp= km/s ▌Show He II at z=v_exp= km/s ▌Show C II at z=v_exp= km/s ▌Show C III at z=v_exp= km/s ▌Show C IV at z=v_exp= km/s ▌Show N II at z=v_exp= km/s ▌Show N III at z=v_exp= km/s ▌Show N IV at z=v_exp= km/s ▌Show N V at z=v_exp= km/s ▌Show O at z=v_exp= km/s ▌Show [O I] at z=v_exp= km/s ▌Show O II at z=v_exp= km/s ▌Show [O II] at z=v_exp= km/s ▌Show [O III] at z=v_exp= km/s ▌Show O V at z=v_exp= km/s ▌Show O VI at z=v_exp= km/s ▌Show Na at z=v_exp= km/s ▌Show Mg at z=v_exp= km/s ▌Show Mg II at z=v_exp= km/s ▌Show Si II at z=v_exp= km/s ▌Show S II at z=v_exp= km/s ▌Show Ca II at z=v_exp= km/s ▌Show [Ca II] at z=v_exp= km/s ▌Show Fe II at z=v_exp= km/s ▌Show Fe III at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Tellurics ▌Show Galaxy lines at z= ▌Show WR-WN at z=v_exp= km/s ▌Show WR-WC/O at z=v_exp= km/s z-step: v-step: Remarks
	22593	2025-12-07 21:38:04	Lijiang-2.4m / YFOSC		Jujia Zhang		LiONS	tns_2025afti_2025-12-07_21-38-03.607_Lijiang-2.4m_YFOSC_LiONS.dat		Object
Binning factor: (rounded to nearest integer >1) Mouse hovers at WL: 0 (rest), 0 (observed) ▌Show H at z=v_exp= km/s ▌Show He at z=v_exp= km/s ▌Show He II at z=v_exp= km/s ▌Show C II at z=v_exp= km/s ▌Show C III at z=v_exp= km/s ▌Show C IV at z=v_exp= km/s ▌Show N II at z=v_exp= km/s ▌Show N III at z=v_exp= km/s ▌Show N IV at z=v_exp= km/s ▌Show N V at z=v_exp= km/s ▌Show O at z=v_exp= km/s ▌Show [O I] at z=v_exp= km/s ▌Show O II at z=v_exp= km/s ▌Show [O II] at z=v_exp= km/s ▌Show [O III] at z=v_exp= km/s ▌Show O V at z=v_exp= km/s ▌Show O VI at z=v_exp= km/s ▌Show Na at z=v_exp= km/s ▌Show Mg at z=v_exp= km/s ▌Show Mg II at z=v_exp= km/s ▌Show Si II at z=v_exp= km/s ▌Show S II at z=v_exp= km/s ▌Show Ca II at z=v_exp= km/s ▌Show [Ca II] at z=v_exp= km/s ▌Show Fe II at z=v_exp= km/s ▌Show Fe III at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Å at z=v_exp= km/s ▌Show Tellurics ▌Show Galaxy lines at z= ▌Show WR-WN at z=v_exp= km/s ▌Show WR-WC/O at z=v_exp= km/s z-step: v-step: Remarks

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

L-GOTO

GOTO-S_GOTO-4

2025-11-18 15:51:12 - 2025-12-02 14:59:06

2460998.160551 - 2461012.12438

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
535884	2025-12-02 14:59:06	2461012.12438	18.46	0.06		ABMag	L-GOTO	GOTO-S_GOTO-4	180
535883	2025-11-18 15:51:12	2460998.160551			19.7	ABMag	L-GOTO	GOTO-S_GOTO-4	180		[Last non detection]

r-ZTF

P48_ZTF-Cam

2025-12-06 12:34:07 - 2025-12-07 11:07:54

2461016.0236921 - 2461016.9638194

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
536494	2025-12-07 11:07:54	2461016.9638194	17.9749	0.143974		ABMag	r-ZTF	P48_ZTF-Cam
536493	2025-12-06 12:34:07	2461016.0236921	18.3021	0.0726786		ABMag	r-ZTF	P48_ZTF-Cam

g-ZTF

P48_ZTF-Cam

2025-12-06 12:01:29 - 2025-12-06 12:01:29

2461016.0010301 - 2461016.0010301

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
536492	2025-12-06 12:01:29	2461016.0010301			19.191	ABMag	g-ZTF	P48_ZTF-Cam			[Last non detection]

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-12-02 12:28:16 - 2025-12-03 12:09:14

2461012.01963 - 2461013.00641

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
535868	2025-12-03 12:09:14	2461013.00641	18.377	0.156	18.63	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot
535867	2025-12-02 12:28:16	2461012.01963			18.6	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
279542	2025-12-07 11:16:21	BTSbot_bot	Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF	ZTF	ZTF	08:47:21.236	-25:31:58.91	2025-12-06 12:34:06.997	18.3021	r-ZTF		PSN		ZTF25acgcivx	ZTF		Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).		N
279286	2025-12-03 19:00:20	GOTO_bot	D. O'Neill, K. Ackley, M. Dyer et al.	GOTO	GOTO	08:47:21.239	-25:31:58.98	2025-12-02 14:59:06.432	18.46	L-GOTO		Other		GOTO25kyr	GOTO				N
279278	2025-12-03 14:58:58	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al.	ATLAS	ATLAS	08:47:21.243	-25:31:59.46	2025-12-03 12:09:13.824	18.377	orange-ATLAS		PSN		ATLAS25phn	ATLAS			2025TNSTR4819....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

22592

2025-12-15 04:51:27

Liping Li

Liping Li, Zeyi Wang, Qian Zhai, Bo Wang, Jujia Zhang (YNAO); Xiaofeng Wang(THU)

LiONS

SN Ia

0.06

1

LiONS

We tend to suggest that the spectrum obtained by LJT is similar to that of a luminous SN Ia (e.g., 91T-like), dominated by the absorption of iron-group elements.

2025TNSCR4994....1L

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
22593	2025-12-07 21:38:04	Lijiang-2.4m / YFOSC		Jujia Zhang		LiONS	tns_2025afti_2025-12-07_21-38-03.607_Lijiang-2.4m_YFOSC_LiONS.dat		Object

22588

2025-12-14 13:47:45

Charlotte Angus

C. Angus (QUB) on behalf of SCAT

SCAT

SN Ic

0.06

1

SCAT

2025TNSCR4980....1A

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
22589	2025-12-14 00:00:00	UH88 / SNIFS		C. Angus		SCAT	tns_2025afti_2025-12-14_UH88_SNIFS_SCAT.dat		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 279542 of Group ZTF
Previous RA, DEC: 08:47:21.243, -25:31:59.46 (131.838514286, -25.5331828571)
Updated RA, DEC: 08:47:21.236, -25:31:58.91 (131.8384815, -25.5330311)

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