2021agco | Transient Name Server

RA/DEC (2000)

07:28:10.557 +58:30:12.37

112.043986 +58.503436

Type

SN II

Redshift

0.010564

Discovery Report Classification Report

Related AstroNotes: 2021-311

Reporting Group

XOSS

Discovering Data Source

XOSS

Discovery Date

2021-12-05 13:32:13.920

TNS AT

Y

Public

Y

Host Name

UGC3855

Host Redshift

0.010401

Discovery Mag

17.6

Filter

Clear-

Reporter/s

Chunpeng Bi, Jiashuo Zhang, Jianlin Xu, Jingyuan Zhao, Jiangao Ruan, Yanxi Li, Guoyou Sun, Wenjie Zhou, Yi Ding, Mi Zhang, Xing Gao(Xingming Obs)

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

ATLAS-MLO_ATLAS-01_orange

▌

Other_Other_Clear

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
	11566	2021-12-07 20:19:48	Ekar / AFOSC	2700	Tomasella	Tomasella	Padova-Asiago	tns_2021agco_2021-12-07_20-19-48_Ekar_AFOSC_Padova-Asiago.dat	tns_2021agco_2021-12-07_20-19-48_Ekar_AFOSC_Padova-Asiago.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

orange-ATLAS

ATLAS-MLO_ATLAS-01

2021-12-02 14:58:34 - 2021-12-10 12:59:02

2459551.124 - 2459559.041

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
257717	2021-12-10 12:59:02	2459559.041	17.958	0.095	19.13	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot
257716	2021-12-02 14:58:34	2459551.124			19.35	ABMag	orange-ATLAS	ATLAS-MLO_ATLAS-01	30	Robot	[Last non detection]

Clear-

Other_Other

2021-12-05 13:32:14 - 2021-12-05 13:32:14

2459554.06405 - 2459554.06405

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
257548	2021-12-05 13:32:14	2459554.06405	17.6		18.5	VegaMag	Clear-	Other_Other	90	Xing Gao

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
131122	2021-12-11 16:49:13	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al.	ATLAS	ATLAS	07:28:10.557	+58:30:12.37	2021-12-10 12:59:02.400	17.958	orange-ATLAS		PSN		ATLAS21bnek	ATLAS				N
131039	2021-12-05 14:00:58	Mi Zhang	Chunpeng Bi, Jiashuo Zhang, Jianlin Xu et al.	XOSS	XOSS	07:28:10.500	+58:30:12.80	2021-12-05 13:32:13.920	17.6	Clear-		PSN	UGC3855	PSP21al	XOSS		Chunpeng Bi, Jiashuo Zhang, Jianlin Xu, Jingyuan Zhao, Jiangao Ruan, Yanxi Li, Guoyou Sun, Wenjie Zhou, Yi Ding, Mi Zhang, Xing Gao(Xingming Obs), report the discovery of a possible supernova (mag approximately 17.6 G) on several 90-s survey images (limiting mag about 18.5) taken by Xing Gao at Xingming Observatory #3 (N88) around Dec. 05.56405, 2021 UT using a unfiltered CCD (+ 0.6-m f/8 Ritchey-Chretien telescope). The transient approximately located at R.A.=07h28m10.50s +58d30’12”.8 (equinox 2000.0). Which is about 19.6" west and 11.4" south of the center of the UGC3855. Images can be found at: http://xjltp.china-vo.org/psp21al.html	2021TNSTR4101....1B	N

Classification Reports

ID

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

11512

2021-12-08 20:36:53

Lina Tomasella

Lina Tomasella, Stefano Benetti, Enrico Cappellaro (INAF OAPd)

Padova-Asiago

SN II

0.010564

1

Padova-Asiago

The low S/N spectrum of AT2021agco in UGC3855 (at z=0.010564 by Theureau et al. 1998 A&AS via NED) is consistent with an early Type II SN.

2021TNSCR4118....1T

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
11566	2021-12-07 20:19:48	Ekar / AFOSC	2700	Tomasella	Tomasella	Padova-Asiago	tns_2021agco_2021-12-07_20-19-48_Ekar_AFOSC_Padova-Asiago.dat	tns_2021agco_2021-12-07_20-19-48_Ekar_AFOSC_Padova-Asiago.fits	Object

Comments

Object coordinates updated

Object coordinates updated according to AT-report 131122 of Group ATLAS
Previous RA, DEC: 07:28:10.500, +58:30:12.80 (112.04375, +58.503556)
Updated RA, DEC: 07:28:10.557, +58:30:12.37 (112.043986, 58.503436)

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