2025abob | Transient Name Server

RA/DEC (2000)

03:31:32.223 +04:55:37.36

52.8842640479 +4.92704341707

Type

SN II

Redshift

0.037

Discovery Report Classification Report

Related AstroNotes: DRAFT-2349, 2025-332

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-10-24 10:36:49.000

TNS AT

Y

Public

Y

Discovery Mag

20.1705

Filter

g-ZTF

Reporter/s

Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

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
	22487	2025-11-21 00:00:00	FLWO-1.5m / FAST	1500	Gilbert Esquerdo, Perry Berlind	S. Karthik Yadavalli, Harsh Kumar	VHU-TDA	tns_2025abob_2025-11-21_FLWO-1.5m_FAST_VHU-TDA.ascii		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 Remarks
	22373	2025-11-08 04:34:41	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2025abob_2025-11-08_04-34-41.472200_P60_SEDM_ZTF.ascii		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 Remarks

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

wide-ATLAS

ATLAS-TDO_ATLAS-05

2025-10-24 02:09:28 - 2025-10-24 02:09:28

2460972.58991 - 2460972.58991

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
527153	2025-10-24 02:09:28	2460972.58991			20.27	ABMag	wide-ATLAS	ATLAS-TDO_ATLAS-05	30	Robot	[Last non detection]

L-GOTO

GOTO-S_GOTO-3

2025-10-23 16:15:38 - 2025-10-23 16:15:38

2460972.177515 - 2460972.177515

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
527196	2025-10-23 16:15:38	2460972.177515			19.7	ABMag	L-GOTO	GOTO-S_GOTO-3	180		[Last non detection]

L-GOTO

GOTO-N_GOTO-2

2025-10-27 01:05:36 - 2025-10-27 01:05:36

2460975.545563 - 2460975.545563

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
527197	2025-10-27 01:05:36	2460975.545563	18.85	0.09		ABMag	L-GOTO	GOTO-N_GOTO-2	135

w-P1

PS2_GPC2

2025-11-27 07:23:09 - 2025-11-27 07:23:09

2461006.80774 - 2461006.80774

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
546907	2025-11-27 07:23:09	2461006.80774	18.7	0.03	22	ABMag	w-P1	PS2_GPC2	45	Robot

cyan-ATLAS

ATLAS-STH_ATLAS-03

2025-10-25 00:45:41 - 2025-10-25 00:45:41

2460973.53172 - 2460973.53172

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
527154	2025-10-25 00:45:41	2460973.53172	19.086	0.164	19.47	ABMag	cyan-ATLAS	ATLAS-STH_ATLAS-03	30	Robot

g-ZTF

P48_ZTF-Cam

2025-10-23 07:59:52 - 2025-10-25 08:25:14

2460971.8332407 - 2460973.8508565

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
526759	2025-10-25 08:25:14	2460973.8508565	18.9214	0.0647698		ABMag	g-ZTF	P48_ZTF-Cam
526758	2025-10-24 10:36:49	2460972.9422338	20.1705	0.127146		ABMag	g-ZTF	P48_ZTF-Cam
526757	2025-10-23 07:59:52	2460971.8332407			20.8013	ABMag	g-ZTF	P48_ZTF-Cam			[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
285582	2026-01-01 23:21:31	PS1_Bot1	K. C. Chambers,T. de Boer,J. Fairlamb et al.	Pan-STARRS	Pan-STARRS	03:31:32.223	+04:55:37.36	2025-11-27 07:23:08.736	18.7	w-P1		PSN		PS25mmt	Pan-STARRS				N
274940	2025-10-27 02:05:48	GOTO_bot	S. Belkin,K. Ackley,M. Dyer et al.	GOTO	GOTO	03:31:32.219	+04:55:36.95	2025-10-27 01:05:36.384	18.85	L-GOTO		Other		GOTO25jgr	GOTO				N
274918	2025-10-26 17:59:37	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	03:31:32.215	+04:55:37.35	2025-10-25 00:45:40.608	19.086	cyan-ATLAS		PSN		ATLAS25nio	ATLAS				N
274755	2025-10-25 10:09:43	Fritz	Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al.	ZTF	ZTF	03:31:32.219	+04:55:37.42	2025-10-24 10:36:49.000	20.1705	g-ZTF		PSN		ZTF25abzswyh	ZTF			2025TNSTR4289....1S	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

22486

2025-12-02 01:18:29

VHU-TDA

Anya Nugent, Yize Dong, V. Ashley Villar, S. Karthik Yadavalli, Alex Gagliano, Kaylee de Soto, Danielle Frostig, Harsh Kumar, Peter Blanchard

VHU-TDA

SN II

0.037

1

1

VHU-TDA

Redshift from host lines

2025TNSCR4809....1N

Related files

File	Comments	Last Modified (UT)	Modified By
tns_2025abob_atrep_22486_VHU-TDA.png	SN2004et best match from SNID-SAGE.	2025-12-02 01:18:32	VHU-TDA

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
22487	2025-11-21 00:00:00	FLWO-1.5m / FAST	1500	Gilbert Esquerdo, Perry Berlind	S. Karthik Yadavalli, Harsh Kumar	VHU-TDA	tns_2025abob_2025-11-21_FLWO-1.5m_FAST_VHU-TDA.ascii		Object

22372

2025-11-08 19:30:57

ZTF_Bot1

J. Sollerman, S. Covarrubias, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF)

ZTF

SN II

0.0372

1

ZTF

2025TNSCR4487....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
22373	2025-11-08 04:34:41	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2025abob_2025-11-08_04-34-41.472200_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 285582 of Group Pan-STARRS
Previous RA, DEC: 03:31:32.219, +04:55:37.42 (52.8842475, +4.9270621)
Updated RA, DEC: 03:31:32.223, +04:55:37.36 (52.8842640479, +4.92704341707)

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