2023cyo | Transient Name Server

RA/DEC (2000)

14:55:27.390 +41:15:22.90

223.864125 +41.256361

Type

SN Ia

Redshift

0.016059

Discovery Report Classification Report

Related AstroNotes: 2023-55

Reporting Group

ATLAS

Discovering Data Source

ATLAS

Discovery Date

2023-03-12 11:51:57.888

TNS AT

Public

Discovery Mag

16.412

Filter

orange-ATLAS

Reporter/s

J. Tonry, L. Denneau, H. Weiland, A. Lawrence, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), J. Anderson (ESO), A. Jordan, V. Suc (UAI, Obstech), K. W. Smith, S. Srivastav, D. R. Young, S. J. Smartt, J. Gillanders, M. Fulton, M. McCollum, T. Moore, J. Weston (Queen's University Belfast), L. Shingles (GSI/QUB), A. Rest (STScI), T.-W. Chen (TUM/MPA), M. Nicholl (Birmingham), C. Stubbs (Harvard), J. Sommer (LMU/QUB), L. Rhodes, A. Andersson (Oxford)

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

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
	14590	2023-03-12 22:47:00	Other / Other	5400	Claudio Balcon	Claudio Balcon	None	tns_2023cyo_2023-03-12_22-47-00_Other_Other.dat	tns_2023cyo_2023-03-12_22-47-00_Other_Other.fit	Object			We obtained the low-resolution spectrum R~100 using the FOSC-ES32 spectrograph attached to a 0.2m telescope, in the course of Italian Supernovae Search Project.
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 We obtained the low-resolution spectrum R~100 using the FOSC-ES32 spectrograph attached to a 0.2m telescope, in the course of Italian Supernovae Search Project.

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

z-P1

PS2_GPC2

2023-03-18 15:43:03 - 2023-03-18 15:43:03

2460022.1549 - 2460022.1549

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
332965	2023-03-18 15:43:03	2460022.1549	16.31	0.01	20.4	ABMag	z-P1	PS2_GPC2	120	Robot

r-ZTF

P48_ZTF-Cam

2023-02-21 11:51:00 - 2023-03-13 11:25:56

2459996.99375 - 2460016.9763426

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
331617	2023-03-13 11:25:56	2460016.9763426	16.0768	0.0261181	20.1377	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF
331615	2023-02-21 11:51:00	2459996.99375			20.466	ABMag	r-ZTF	P48_ZTF-Cam	30	Robot	[Last non detection] Data provided by ZTF

g-ZTF

P48_ZTF-Cam

2023-03-13 10:48:00 - 2023-03-13 10:48:00

2460016.95 - 2460016.95

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
331616	2023-03-13 10:48:00	2460016.95	16.1316	0.0277969	20.2745	ABMag	g-ZTF	P48_ZTF-Cam	30	Robot	Data provided by ZTF

G-Gaia

Gaia_Gaia-photometric

2023-02-18 11:25:26 - 2023-03-31 22:07:41

2459993.976 - 2460035.422

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
337890	2023-03-31 22:07:41	2460035.422	16.58	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
337889	2023-02-18 11:25:26	2459993.976			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[Last non detection]

orange-ATLAS

ATLAS-HKO_ATLAS-02

2023-03-11 13:59:22 - 2023-03-12 11:51:58

2460015.08289 - 2460015.99442

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
331424	2023-03-12 11:51:58	2460015.99442	16.412	0.027	19.06	ABMag	orange-ATLAS	ATLAS-HKO_ATLAS-02	30	Robot
331423	2023-03-11 13:59:22	2460015.08289			16.16	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	AT Type	Host name	Internal name	Assoc. Groups	Remarks	ADS Bibcode	Unreal
175208	2023-04-18 13:40:33	Gaia_Bot1	S.T. Hodgkin, E. Breedt, A. Delgado et al.	GaiaAlerts	GaiaAlerts	14:55:27.390	+41:15:22.90	2023-03-31 22:07:40.800	16.58	G-Gaia	PSN		Gaia23boc	GaiaAlerts	Confirmed SN Ia		N
172775	2023-03-19 21:32:24	PS1_Bot1	K. C. Chambers, T. de Boer, J. Bulger et al.	Pan-STARRS	Pan-STARRS	14:55:27.397	+41:15:23.00	2023-03-18 15:43:03.360	16.31	z-P1	PSN		PS23avu	Pan-STARRS			N
172111	2023-03-13 22:03:21	ALeRCE	A. Munoz-Arancibia, F. Forster, F.E. Bauer et al.	ALeRCE	ZTF	14:55:27.406	+41:15:22.89	2023-03-13 10:48:00.000	16.1316	g-ZTF	PSN	SDSS J145527.42+411526.4	ZTF23aadcaqo	ALeRCE	Early SN candidate (g-rise > 0.24+-0.00 mag/day, r-rise > 0.22+-0.00 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF23aadcaqo		N
172020	2023-03-12 15:44:31	ATLAS_Bot1	J. Tonry, L. Denneau, H. Weiland et al.	ATLAS	ATLAS	14:55:27.393	+41:15:23.18	2023-03-12 11:51:57.888	16.412	orange-ATLAS	PSN		ATLAS23dnf	ATLAS		2023TNSTR.515....1T	N

Classification Reports

Time received (UT)

Sender

Classifier/s

Group

Classification

Redshift

Spectra

Related files

Assoc. Groups

End prop. period

Remarks

ADS Bibcode

14516

2023-03-12 23:44:15

Claudio Balcon

Claudio Balcon (Belluno A.O. ISSP)

None

SN Ia

0.016059

The low S/N spectrum is contaminated by the host galaxy. DASH (Muthukrishna et al., 2019, ApJ, 885, 85) suggests that this spectrum resembles that of a type la supernova before maximum light at the redshift of the host galaxy, value from NED.

2023TNSCR.519....1B

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
14590	2023-03-12 22:47:00	Other / Other	5400	Claudio Balcon	Claudio Balcon	None	tns_2023cyo_2023-03-12_22-47-00_Other_Other.dat	tns_2023cyo_2023-03-12_22-47-00_Other_Other.fit	Object			We obtained the low-resolution spectrum R~100 using the FOSC-ES32 spectrograph attached to a 0.2m telescope, in the course of Italian Supernovae Search Project.

Comments

Object coordinates updated

Object coordinates updated according to AT-report 175208 of Group GaiaAlerts
Previous RA, DEC: 14:55:27.397, +41:15:23.00 (223.864153032, +41.256389659)
Updated RA, DEC: 14:55:27.390, +41:15:22.90 (223.864125, 41.256361)

Object coordinates updated

Object coordinates updated according to AT-report 172775 of Group Pan-STARRS
Previous RA, DEC: 14:55:27.406, +41:15:22.89 (223.86419145, +41.25635835)
Updated RA, DEC: 14:55:27.397, +41:15:23.00 (223.864153032, 41.256389659)

Object coordinates updated

Object coordinates updated according to AT-report 172111 of Group ZTF
Previous RA, DEC: 14:55:27.393, +41:15:23.18 (223.86413875, +41.25643875)
Updated RA, DEC: 14:55:27.406, +41:15:22.89 (223.86419145, 41.25635835)

SN 2023cyo

Spectra

Light curves

Comments

Object coordinates updated

Object coordinates updated

Object coordinates updated