2021klf | Transient Name Server

RA/DEC (2000)

19:15:51.660 -07:12:41.69

288.96525 -7.211581

Type

---

Redshift

Discovery Report Classification Report

Reporting Group

ASAS-SN

Discovering Data Source

ASAS-SN

Discovery Date

2021-04-24 06:14:24.000

TNS AT

Y

Public

Y

Discovery Mag

15.4

Filter

g-Sloan

Reporter/s

K. Z. Stanek, for the ASAS-SN team

NED SIMBAD DECaLS PanSTARRS-1 SkyMapper VizieR WISE DSS ADS

Light curves

▌

ASASSN-3_Paczynski_g

▌

Gaia_Gaia-photometric_G

▌

ASASSN-2_Cassius_g

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
	9524	2021-04-25 18:51:50	Other / Other	300	Isogai	Taguchi	None	tns_2021klf_2021-04-25.786_Other_Other.dat	tns_2021klf_2021-04-25.786_Other_Other.fits	Object			See ATel #14575. By the fiber-fed integral field spectrograph (KOOLS-IFU) mounted on the 3.8-m telescope Seimei at Okayama Observatory of Kyoto University.
Binning factor: (rounded to nearest integer >1) Mouse hovers at WL: 0 (rest), ▌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 z-step: v-step: Remarks See ATel #14575. By the fiber-fed integral field spectrograph (KOOLS-IFU) mounted on the 3.8-m telescope Seimei at Okayama Observatory of Kyoto University.
	9523	2021-04-25 18:41:46	Other / Other	900	Isogai	Taguchi	None	tns_2021klf_2021-04-25.779_Other_Other.dat	tns_2021klf_2021-04-25.779_Other_Other.fits	Object			See ATel #14575. By the fiber-fed integral field spectrograph (KOOLS-IFU) mounted on the 3.8-m telescope Seimei at Okayama Observatory of Kyoto University.
Binning factor: (rounded to nearest integer >1) Mouse hovers at WL: 0 (rest), ▌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 z-step: v-step: Remarks See ATel #14575. By the fiber-fed integral field spectrograph (KOOLS-IFU) mounted on the 3.8-m telescope Seimei at Okayama Observatory of Kyoto University.

Light Curves

Filter

Tel / Inst

Obs-date range

JD Range

Photometry

g-Sloan

ASASSN-3_Paczynski

2021-04-13 06:57:36 - 2021-04-13 06:57:36

2459317.79 - 2459317.79

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
208647	2021-04-13 06:57:36	2459317.79			17.8	ABMag	g-Sloan	ASASSN-3_Paczynski			[Last non detection]

G-Gaia

Gaia_Gaia-photometric

2021-03-02 05:03:50 - 2021-04-09 08:49:55

2459275.711 - 2459313.868

2

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
214490	2021-04-09 08:49:55	2459313.868	16.53	0.2		ABMag	G-Gaia	Gaia_Gaia-photometric	60	Robot
214489	2021-03-02 05:03:50	2459275.711			21.5	ABMag	G-Gaia	Gaia_Gaia-photometric		Robot	[Last non detection]

g-Sloan

ASASSN-2_Cassius

2021-04-24 06:14:24 - 2021-04-24 06:14:24

2459328.76 - 2459328.76

1

Photometry

ID	Obs-date	JD	Mag. / Flux	Err	Lim. Mag./Flux	Units	Filter	Tel / Inst	Exp-time	Observer/s	Remarks
208648	2021-04-24 06:14:24	2459328.76	15.4			ABMag	g-Sloan	ASASSN-2_Cassius

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
110062	2021-05-19 14:26:16	Gaia_Bot1	S.T. Hodgkin, E. Breedt, A. Delgado et al.	GaiaAlerts	GaiaAlerts	19:15:51.660	-07:12:41.69	2021-04-09 08:49:55.200	16.53	G-Gaia		Other		Gaia21cki	GaiaAlerts		Gaia detection of known microlensing event ASASSN-21gq		N
107584	2021-04-24 12:44:24	Krzysztof Stanek	K. Z. Stanek, for the ASAS-SN team	ASAS-SN	ASAS-SN	19:15:51.636	-07:12:42.01	2021-04-24 06:14:24.000	15.4	g-Sloan		PSN		ASASSN-21gq	ASAS-SN		Unusual CV or another type of Galactic transient, still on the rise	2021TNSTR1339....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

9514

2021-04-26 08:50:35

Kenta Taguchi

Kenta Tagchi (Kyoto University), Keisuke Isogai, (Kyoto University), Yusuke Tampo, Naoto Kojiguchi (Kyoto University)

None

Other

1

The Spectrum is like a G-type star. Likely a Gravitational Microlensing Event (ATel #14575).

2021TNSCR1363....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
9524	2021-04-25 18:51:50	Other / Other	300	Isogai	Taguchi	None	tns_2021klf_2021-04-25.786_Other_Other.dat	tns_2021klf_2021-04-25.786_Other_Other.fits	Object			See ATel #14575. By the fiber-fed integral field spectrograph (KOOLS-IFU) mounted on the 3.8-m telescope Seimei at Okayama Observatory of Kyoto University.

9513

2021-04-26 08:46:10

Kenta Taguchi

Kenta Tagchi (Kyoto University), Keisuke Isogai, (Kyoto University), Yusuke Tampo, Naoto Kojiguchi (Kyoto University)

None

Other

1

The Spectrum is like a G-type star. Likely a Gravitational Microlensing Event (ATel #14575).

2021TNSCR1363....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
9523	2021-04-25 18:41:46	Other / Other	900	Isogai	Taguchi	None	tns_2021klf_2021-04-25.779_Other_Other.dat	tns_2021klf_2021-04-25.779_Other_Other.fits	Object			See ATel #14575. By the fiber-fed integral field spectrograph (KOOLS-IFU) mounted on the 3.8-m telescope Seimei at Okayama Observatory of Kyoto University.

Comments

Object coordinates updated

Object coordinates updated according to AT-report 110062 of Group GaiaAlerts
Previous RA, DEC: 19:15:51.636, -07:12:42.01 (288.96515, -7.21167)
Updated RA, DEC: 19:15:51.660, -07:12:41.69 (288.96525, -7.211581)

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