2026aip | Transient Name Server

RA/DEC (2000)

02:42:33.941 -27:21:03.06

40.641419677778 -27.350850566667

Type

SN Ia

Redshift

0.023

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2026-01-14 02:41:43.998

TNS AT

Y

Public

Y

Discovery Mag

19.3264

Filter

r-ZTF

Reporter/s

Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

ATLAS-CHL_ATLAS-04_cyan

▌

ATLAS-STH_ATLAS-03_orange

▌

P48_ZTF-Cam_r

▌

P48_ZTF-Cam_g

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
	22865	2026-01-27 03:16:51	P60 / SEDM	2160	SEDmRobot	auto	ZTF	tns_2026aip_2026-01-27_03-16-51.364792_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

cyan-ATLAS

ATLAS-CHL_ATLAS-04

2026-01-16 02:11:48 - 2026-01-16 02:11:48

2461056.59153 - 2461056.59153

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
554410	2026-01-16 02:11:48	2461056.59153	18.164	0.077	19.39	ABMag	cyan-ATLAS	ATLAS-CHL_ATLAS-04	30	Robot

orange-ATLAS

ATLAS-STH_ATLAS-03

2026-01-14 22:14:06 - 2026-01-14 22:14:06

2461055.42646 - 2461055.42646

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
554409	2026-01-14 22:14:06	2461055.42646			19.21	ABMag	orange-ATLAS	ATLAS-STH_ATLAS-03	30	Robot	[Last non detection]

r-ZTF

P48_ZTF-Cam

2026-01-09 05:03:08 - 2026-01-14 02:41:44

2461049.7105093 - 2461054.6123148

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
550573	2026-01-14 02:41:44	2461054.6123148	19.3264	0.17149		ABMag	r-ZTF	P48_ZTF-Cam
552664	2026-01-14 02:41:44	2461054.6123148	19.1784	0.267272	19.123	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF, classified by Fink
552663	2026-01-09 05:03:08	2461049.7105093			19.0904	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF, classified by Fink

g-ZTF

P48_ZTF-Cam

2026-01-12 04:42:24 - 2026-01-16 03:24:16

2461052.6961111 - 2461056.6418519

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
550574	2026-01-16 03:24:16	2461056.6418519	18.0959	0.0607809		ABMag	g-ZTF	P48_ZTF-Cam
550572	2026-01-12 04:42:24	2461052.6961111			18.7763	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
289230	2026-01-28 16:30:08	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al.	ATLAS	ATLAS	02:42:33.945	-27:21:03.13	2026-01-16 02:11:48.192	18.164	cyan-ATLAS		PSN		ATLAS26bef	ATLAS				N
288284	2026-01-21 19:46:09	Fink	Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker	Fink	ZTF	02:42:33.941	-27:21:03.06	2026-01-14 02:41:43.999	19.1784	r-ZTF		PSN		ZTF26aaawxpd	ZTF		Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF26aaawxpd		N
287441	2026-01-16 03:42:30	BTSbot_bot	Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF	ZTF	ZTF	02:42:33.941	-27:21:03.54	2026-01-14 02:41:43.998	19.3264	r-ZTF		PSN		ZTF26aaawxpd	ZTF		Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).	2026TNSTR.189....1R	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

22864

2026-01-27 04:01:51

ZTF_Bot1

C. Fremling, D. Neill, Y. Sharma on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore

ZTF

SN Ia

0.023

1

ZTF

2026TNSCR.367....1F

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
22865	2026-01-27 03:16:51	P60 / SEDM	2160	SEDmRobot	auto	ZTF	tns_2026aip_2026-01-27_03-16-51.364792_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 288284 of Group ZTF
Previous RA, DEC: 02:42:33.941, -27:21:03.54 (40.6414203, -27.350982)
Updated RA, DEC: 02:42:33.941, -27:21:03.06 (40.641419677778, -27.350850566667)

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