2025mco | Transient Name Server

RA/DEC (2000)

19:18:23.227 +78:27:31.49

289.59677764167 +78.458747508333

Type

SN Ic-BL

Redshift

0.035

Discovery Report Classification Report

Reporting Group

ZTF

Discovering Data Source

ZTF

Discovery Date

2025-05-23 08:44:23.000

TNS AT

Y

Public

Y

Discovery Mag

20.8235

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

▌

P48_ZTF-Cam_r

▌

P48_ZTF-Cam_g

▌

ATLAS-MLO_ATLAS-01_orange

▌

ATLAS-HKO_ATLAS-02_cyan

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
	21325	2025-06-10 05:32:37	P60 / SEDM	2700	SEDmRobot		ZTF	tns_2025mco_2025-06-10_05-32-37.205291_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

r-ZTF

P48_ZTF-Cam

2025-05-21 10:26:16 - 2025-05-21 10:26:16

2460816.9349074 - 2460816.9349074

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
491861	2025-05-21 10:26:16	2460816.9349074			20.165	ABMag	r-ZTF	P48_ZTF-Cam			[Last non detection]

g-ZTF

P48_ZTF-Cam

2025-05-21 08:58:51 - 2025-05-27 10:16:40

2460816.8742014 - 2460822.9282407

4

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
491863	2025-05-27 10:16:40	2460822.9282407	19.7288	0.185208		ABMag	g-ZTF	P48_ZTF-Cam
491862	2025-05-23 08:44:23	2460818.8641551	20.8235	0.298747		ABMag	g-ZTF	P48_ZTF-Cam
492303	2025-05-23 08:44:23	2460818.8641551	20.8235	0.298747	20.6494	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF, classified by Fink
492302	2025-05-21 08:58:51	2460816.8742014			20.2831	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF, classified by Fink

orange-ATLAS

ATLAS-MLO_ATLAS-01

2025-05-26 12:37:30 - 2025-05-26 12:37:30

2460822.02604 - 2460822.02604

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
492483	2025-05-26 12:37:30	2460822.02604			19.22	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

cyan-ATLAS

ATLAS-HKO_ATLAS-02

2025-05-28 12:56:52 - 2025-05-28 12:56:52

2460824.03949 - 2460824.03949

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
492484	2025-05-28 12:56:52	2460824.03949	19.138	0.162	19.34	ABMag	cyan-ATLAS	ATLAS-HKO_ATLAS-02	30	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
257196	2025-05-29 04:30:03	ATLAS_Bot1	J. Tonry,L. Denneau,H. Weiland et al.	ATLAS	ATLAS	19:18:23.422	+78:27:30.83	2025-05-28 12:56:51.936	19.138	cyan-ATLAS		PSN		ATLAS25frt	ATLAS				N
257085	2025-05-28 18:16:51	Fink	Julien Peloton,Anais Moller,Emille E. O. Ishida on behalf of the Fink broker et al.	Fink	ZTF	19:18:23.227	+78:27:31.49	2025-05-23 08:44:23.001	20.8235	g-ZTF		PSN		ZTF25aarmzhx	ZTF		Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25aarmzhx		N
256907	2025-05-27 12:38:49	Fritz	Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al.	ZTF	ZTF	19:18:23.191	+78:27:31.54	2025-05-23 08:44:23.000	20.8235	g-ZTF		PSN		ZTF25aarmzhx	ZTF			2025TNSTR1987....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

21325

2025-06-16 21:37:39

ZTF_Bot1

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

ZTF

SN Ic-BL

0.035

1

ZTF

2025TNSCR2245....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
21325	2025-06-10 05:32:37	P60 / SEDM	2700	SEDmRobot		ZTF	tns_2025mco_2025-06-10_05-32-37.205291_P60_SEDM_ZTF.ascii		Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 257085 of Group ZTF
Previous RA, DEC: 19:18:23.191, +78:27:31.54 (289.5966305, +78.4587608)
Updated RA, DEC: 19:18:23.227, +78:27:31.49 (289.59677764167, +78.458747508333)

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