2026weo | Transient Name Server

RA/DEC (2000)

01:10:22.020 -09:34:08.25

17.591750339317 -9.5689572006354

Type

SN Ia

Redshift

0.02372

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2026-07-24 10:14:56.999

TNS AT

Y

Public

Y

Host Name

PGC004171

Comments

[Object cross-matched with PGC004171]

Discovery Mag

20.636

Filter

r-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
	24745	2026-08-23 23:33:24	Lesedi / Mookodi	600	N. Erasmus, S. Potter, C. van Gend, H. Worters, P. Rabe (all SAAO)	S. de Wet	ATLAS	tns_2026weo_2026-08-23_23-33-24_Lesedi_Mookodi_ATLAS.txt		Object			The classification target was automatically sent for follow-up by the Virtual Research Assistant (Stevance et al. 2025). Observations were programatically triggered using the ATLAS API Client (Stevance et al. 2026) and the SAAO Intelligent Observatory framework (Erasmus et al. 2024, Erasmus et al. 2025)
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 The classification target was automatically sent for follow-up by the Virtual Research Assistant (Stevance et al. 2025). Observations were programatically triggered using the ATLAS API Client (Stevance et al. 2026) and the SAAO Intelligent Observatory framework (Erasmus et al. 2024, Erasmus et al. 2025)
	24396	2026-07-27 08:57:26	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2026weo_2026-07-27_08-57-25.933978_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 z-step: v-step: Remarks

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

wide-ATLAS

ATLAS-TDO_ATLAS-05

2026-07-26 02:53:32 - 2026-07-26 02:53:32

2461247.62051 - 2461247.62051

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
607513	2026-07-26 02:53:32	2461247.62051	18.672	0.109	19.44	ABMag	wide-ATLAS	ATLAS-TDO_ATLAS-05	30	Robot

Clear-

LAST_LAST-Cam

2024-12-03 20:02:34 - 2026-08-09 01:50:11

2460648.33511 - 2461261.57652

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
611367	2026-08-09 01:50:11	2461261.57652	16.29			ABMag	Clear-	LAST_LAST-Cam	400
611366	2024-12-03 20:02:34	2460648.33511			20.11	ABMag	Clear-	LAST_LAST-Cam	400		[Last non detection]

L-GOTO

GOTO-S_GOTO-3

2026-07-22 17:34:59 - 2026-07-27 16:23:55

2461244.232627 - 2461249.183274

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
607718	2026-07-27 16:23:55	2461249.183274	18.11	0.05		ABMag	L-GOTO	GOTO-S_GOTO-3	180
607717	2026-07-22 17:34:59	2461244.232627			20.4	ABMag	L-GOTO	GOTO-S_GOTO-3	180		[Last non detection]

r-ZTF

P48_ZTF-Cam

2026-07-23 12:01:54 - 2026-07-24 10:14:57

2461245.0013194 - 2461245.9270486

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
607364	2026-07-24 10:14:57	2461245.9270486	20.636	0.17793		ABMag	r-ZTF	P48_ZTF-Cam
607363	2026-07-23 12:01:54	2461245.0013194			19.5934	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

g-ZTF

P48_ZTF-Cam

2026-07-25 11:11:33 - 2026-07-25 11:11:33

2461246.9663542 - 2461246.9663542

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
607365	2026-07-25 11:11:33	2461246.9663542	19.1666	0.0965365		ABMag	g-ZTF	P48_ZTF-Cam

orange-ATLAS

ATLAS-MLO_ATLAS-01

2026-07-23 13:46:35 - 2026-07-23 13:46:35

2461245.07402 - 2461245.07402

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
607512	2026-07-23 13:46:35	2461245.07402			19.26	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

w-P1

PS1_GPC1

2026-09-13 12:14:46 - 2026-09-13 12:14:46

2461297.01025 - 2461297.01025

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
619352	2026-09-13 12:14:46	2461297.01025	17.2	0.01	22	ABMag	w-P1	PS1_GPC1	45	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	ADS Bibcode	Unreal	Auto classification
323754	2026-09-15 15:15:24	PS1_Bot1	K. C. Chambers, T. de Boer, J. Fairlamb et al.	Pan-STARRS	Pan-STARRS	01:10:22.020	-09:34:08.25	2026-09-13 12:14:45.600	17.2	w-P1		PSN		PS26hps	Pan-STARRS				N
319607	2026-08-09 04:31:24	LAST_Bot1	E. O. Ofek (WIS), R. Konno (WIS), E. A. Zimmerman (WIS) et al.	LAST	LAST	01:10:21.901	-09:34:09.14	2026-08-09 01:50:11.328	16.29	Clear-		PSN			LAST				N
317295	2026-07-27 16:57:29	GOTO_bot	J. Lyman, K. Ackley, M. Dyer et al.	GOTO	GOTO	01:10:21.988	-09:34:08.19	2026-07-27 16:23:54.528	18.11	L-GOTO		Other		GOTO26hkp	GOTO				N
317178	2026-07-26 13:45:20	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al.	ATLAS	ATLAS	01:10:22.018	-09:34:08.30	2026-07-26 02:53:32.064	18.672	wide-ATLAS		PSN		ATLAS26jgp	ATLAS				N
317116	2026-07-25 13:33:45	Fritz	Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al.	ZTF	ZTF	01:10:22.021	-09:34:08.15	2026-07-24 10:14:56.999	20.636	r-ZTF		PSN		ZTF26abjyfjg	ZTF			2026TNSTR3051....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

24737

2026-09-22 13:53:25

ATLAS_Class_Bot

S. de Wet and H. F. Stevance on behalf of ATLAS and SAAO IO

ATLAS

SN Ia

1

ATLAS

SNID-SAGE [1] finds close matches to Type Ia spectra at an age of ~10 days. [1] https://ui.adsabs.harvard.edu/abs/2026MNRAS.549g1066S/abstract

2026TNSCR3839....1W

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
24745	2026-08-23 23:33:24	Lesedi / Mookodi	600	N. Erasmus, S. Potter, C. van Gend, H. Worters, P. Rabe (all SAAO)	S. de Wet	ATLAS	tns_2026weo_2026-08-23_23-33-24_Lesedi_Mookodi_ATLAS.txt		Object			The classification target was automatically sent for follow-up by the Virtual Research Assistant (Stevance et al. 2025). Observations were programatically triggered using the ATLAS API Client (Stevance et al. 2026) and the SAAO Intelligent Observatory framework (Erasmus et al. 2024, Erasmus et al. 2025)

24389

2026-07-28 15:50:34

ZTF_Bot1

J. Sollerman, J. Castaneda Jaimes, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF)

ZTF

SN Ia

0.02372

1

ZTF

2026TNSCR3078....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
24396	2026-07-27 08:57:26	P60 / SEDM	2700	SEDmRobot	auto	ZTF	tns_2026weo_2026-07-27_08-57-25.933978_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 323754 of Group Pan-STARRS
Previous RA, DEC: 01:10:22.021, -09:34:08.15 (17.591756, -9.5689305)
Updated RA, DEC: 01:10:22.020, -09:34:08.25 (17.591750339317, -9.5689572006354)

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