2025adfa | Transient Name Server

RA/DEC (2000)

01:27:13.991 -22:05:37.03

21.8082974 -22.0936197

Type

SLSN-I

Redshift

0.31

Discovery Report Classification Report

Reporting Group

DESIRT

Discovering Data Source

DESIRT

Discovery Date

2025-11-09 02:44:20.832

TNS AT

Y

Public

Y

Discovery Mag

21.3096

Filter

r-Sloan

Reporter/s

Xander J. Hall (Carnegie Mellon U.), Lei Hu (Carnegie Mellon U.), Antonella Palmese (Carnegie Mellon U.), Brendan O'Connor (Carnegie Mellon U.), Yuhan Chen (UC Berkeley), Aidan Catalano (Carnegie Mellon U.), Xingzhuo Chen (Texas A&M U.), Lifan Wang (Texas A&M U.), Tomás Cabrera (Carnegie Mellon U.), Keerthi Kunnumkai (Carnegie Mellon U.) on behalf of the DECam DESI Transients Survey team

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

P48_ZTF-Cam_r

▌

CTIO-4m_DECAM_r

▌

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
	22723	2025-12-24 01:25:39	SOAR / Goodman		Igor Andreoni, Akash Anumarlapudi, James Freeburn, Jonathan Carney	Jonathan Carney	ZTF	tns_2025adfa_2025-12-24_01-25-39_SOAR_Goodman_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

r-ZTF

P48_ZTF-Cam

2025-11-12 07:22:18 - 2025-11-28 06:03:49

2460991.8071528 - 2461007.7526505

3

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
534359	2025-11-28 06:03:49	2461007.7526505	19.6603	0.211657		ABMag	r-ZTF	P48_ZTF-Cam
534358	2025-11-24 04:35:09	2461003.6910764	20.4204	0.204837		ABMag	r-ZTF	P48_ZTF-Cam
534357	2025-11-12 07:22:18	2460991.8071528			18.3831	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

r-Sloan

CTIO-4m_DECAM

2025-11-09 02:44:21 - 2025-11-09 02:44:21

2460988.6141253 - 2460988.6141253

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
530717	2025-11-09 02:44:21	2460988.6141253	21.3096	0.0265742		ABMag	r-Sloan	CTIO-4m_DECAM

orange-ATLAS

ATLAS-HKO_ATLAS-02

2025-12-08 05:08:31 - 2025-12-09 08:26:50

2461017.71425 - 2461018.85197

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
537245	2025-12-09 08:26:50	2461018.85197	18.853	0.173	19.01	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot
537244	2025-12-08 05:08:31	2461017.71425			19.13	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
279896	2025-12-10 14:11:15	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland (IfA et al.	ATLAS	ATLAS	01:27:14.006	-22:05:37.14	2025-12-09 08:26:50.208	18.853	orange-ATLAS		PSN		ATLAS25pky	ATLAS				N
278524	2025-11-28 06:35:21	Fritz	Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al.	ZTF	ZTF	01:27:13.991	-22:05:37.03	2025-11-24 04:35:09.000	20.4204	r-ZTF		PSN		ZTF25acfbplr	ZTF				N
276561	2025-11-12 23:27:33	DESIRT_Bot	Xander J. Hall (Carnegie Mellon U.),Lei Hu (Carnegie Mellon U.),Antonella Palmese (Carnegie Mellon U.) et al.	DESIRT	DESIRT	01:27:13.978	-22:05:36.59	2025-11-09 02:44:20.832	21.3096	r-Sloan		PSN		C202511090127140m220537	DESIRT			2025TNSTR4537....1H	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

22722

2026-01-02 21:45:50

ZTF_Bot1

R. Chornock, J. Carney (UNC), I. Andreoni (UNC), J. Castaneda Jaimes, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF)

ZTF

SLSN-I

0.31

1

ZTF

2026TNSCR..17....1C

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
22723	2025-12-24 01:25:39	SOAR / Goodman		Igor Andreoni, Akash Anumarlapudi, James Freeburn, Jonathan Carney	Jonathan Carney	ZTF	tns_2025adfa_2025-12-24_01-25-39_SOAR_Goodman_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 278524 of Group ZTF
Previous RA, DEC: 01:27:13.978, -22:05:36.59 (21.808243389162, -22.09349630996)
Updated RA, DEC: 01:27:13.991, -22:05:37.03 (21.8082974, -22.0936197)

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