2026ljl | Transient Name Server

RA/DEC (2000)

22:27:22.541 -19:36:17.13

336.8439193 -19.6047582

Type

SN Ia

Redshift

0.04

Discovery Report Classification Report

Related AstroNotes: 2026-123

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2026-05-04 03:08:14.208

TNS AT

Y

Public

Y

Discovery Mag

17.957

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-3_L

▌

ATLAS-CHL_ATLAS-04_orange

▌

ATLAS-STH_ATLAS-03_orange

▌

P48_ZTF-Cam_i

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
	23648	2026-05-05 08:46:58	ESO-NTT / EFOSC2-NTT	1200	Jasvinderjit Khaulsay, Camila Cárdenas	Aiswarya Sankar.K, Anirban Dutta, Yu-Hsing Lee, Amar Aryan, Yi-Zhi Hong, You-Hao Chen	ePESSTO+	tns_2026ljl_2026-05-05_08-46-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci	tns_2026ljl_2026-05-05_08-46-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits	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

L-GOTO

GOTO-S_GOTO-3

2026-04-27 18:34:17 - 2026-04-28 18:32:27

2461158.273815 - 2461159.272532

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
579719	2026-04-28 18:32:27	2461159.272532	20.12	0.21		ABMag	L-GOTO	GOTO-S_GOTO-3	180
579718	2026-04-27 18:34:17	2461158.273815			20.1	ABMag	L-GOTO	GOTO-S_GOTO-3	180		[Last non detection]

orange-ATLAS

ATLAS-CHL_ATLAS-04

2026-05-03 10:15:33 - 2026-05-03 10:15:33

2461163.92747 - 2461163.92747

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
579531	2026-05-03 10:15:33	2461163.92747			18.55	ABMag	orange-ATLAS	ATLAS-CHL_ATLAS-04	30	Robot	[Last non detection]

orange-ATLAS

ATLAS-STH_ATLAS-03

2026-05-04 03:08:14 - 2026-05-04 03:08:14

2461164.63072 - 2461164.63072

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
579532	2026-05-04 03:08:14	2461164.63072	17.957	0.112	18.78	ABMag	orange-ATLAS	ATLAS-STH_ATLAS-03	30	Robot

i-ZTF

P48_ZTF-Cam

2026-05-23 11:13:43 - 2026-05-26 11:13:52

2461183.9678588 - 2461186.967963

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
585490	2026-05-26 11:13:52	2461186.967963	18.0616	0.115813		ABMag	i-ZTF	P48_ZTF-Cam
585489	2026-05-23 11:13:43	2461183.9678588	18.0166	0.0489432		ABMag	i-ZTF	P48_ZTF-Cam

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
305301	2026-05-26 12:24:56	BTSbot_bot	Nabeel Rehemtulla (CIERA, NU), Wynn Jacobson-Galán (Caltech), Theophile du Laz (Caltech) on behalf of ZTF	ZTF	ZTF	22:27:22.541	-19:36:17.13	2026-05-23 11:13:43.000	18.0166	i-ZTF		PSN		ZTF26aaygzlz	ZTF		Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167).		N
302403	2026-05-05 20:32:30	GOTO_bot	G. Ramsay, D. O'Neill, K. Ackley et al.	GOTO	GOTO	22:27:22.542	-19:36:17.31	2026-04-28 18:32:26.592	20.12	L-GOTO		Other		GOTO26eeu	GOTO				N
302300	2026-05-04 15:40:43	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al.	ATLAS	ATLAS	22:27:22.588	-19:36:17.23	2026-05-04 03:08:14.208	17.957	orange-ATLAS		PSN		ATLAS26fda	ATLAS			2026TNSTR1928....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

23645

2026-05-05 16:40:50

ePESSTOplus_Bot1

Jasvinderjit Khaulsay, Camila Cárdenas, Aiswarya Sankar.K, Anirban Dutta, Yu-Hsing Lee, Amar Aryan, Yi-Zhi Hong, You-Hao Chen, O. Yaron on behalf of ePESSTO+

ePESSTO+

SN Ia

0.04

1

ePESSTO+

2026TNSCR1949....1K

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
23648	2026-05-05 08:46:58	ESO-NTT / EFOSC2-NTT	1200	Jasvinderjit Khaulsay, Camila Cárdenas	Aiswarya Sankar.K, Anirban Dutta, Yu-Hsing Lee, Amar Aryan, Yi-Zhi Hong, You-Hao Chen	ePESSTO+	tns_2026ljl_2026-05-05_08-46-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci	tns_2026ljl_2026-05-05_08-46-58_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits	Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 305301 of Group ZTF
Previous RA, DEC: 22:27:22.588, -19:36:17.23 (336.84411875, -19.60478625)
Updated RA, DEC: 22:27:22.541, -19:36:17.13 (336.8439193, -19.6047582)

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