RA/DEC (2000)
10:21:49.740 +56:55:40.51
155.45725 +56.927919
Type
SN II
Redshift
0.003839
Reporting Group
None
Discovering Data Source
None
Discovery Date
2024-01-29 06:02:50.000
TNS AT
Y
Public
Y
Host Name
NGC 3206
Discovery Mag
16.145
Filter
Clear-
Reporter/s
Patrick Wiggins

Spectra

 SN_2024bch - 2024-01-31 22:38:49 CA-2.2m / CAFOS (CET-3PO)z=
 SN_2024bch - 2024-01-29 21:29:00 Other / Other (None)z=
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 PS2_GPC2_r
 GOTO-N_GOTO-1_L
 P48_ZTF-Cam_r
 P48_ZTF-Cam_g
 Gaia_Gaia-photometric_G
 ATLAS-MLO_ATLAS-01_orange
 ATLAS-HKO_ATLAS-02_orange
 PS1_GPC1_i
 Other_Other_Clear
   
Pointer position (MJD, Mag, Abs.Mag): (0.00, 0.00, 0.00)
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
16671 2024-01-31 22:38:49 CA-2.2m / CAFOS 2700 Javier Flores-Martin, Samuel Góngora Maxime Wavasseur, Nadejda Blagorodnova CET-3PO tns_2024bch_2024-01-31_22-38-49_CA-2.2m_CAFOS_CET-3PO.txt Object
16565 2024-01-29 21:29:00 Other / Other 5400 Claudio Balcon Claudio Balcon None tns_2024bch_2024-01-29_21-29-00_Other_Other.dat tns_2024bch_2024-01-29_21-29-00_Other_Other.fit Object We obtained the low-resolution spectrum using the FOSC-E5535 spectrograph attached to a 0.41m telescope, in the course of Italian Supernovae Search Project.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-P1 PS2_GPC2 2024-02-01 10:59:09 - 2024-02-01 10:59:09 2460341.95774 - 2460341.95774 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
388381 2024-02-01 10:59:09 2460341.95774 14.06 0 20.6 ABMag r-P1 PS2_GPC2 27 Robot
L-GOTO GOTO-N_GOTO-1 2024-01-28 01:00:56 - 2024-01-29 01:18:43 2460337.542324 - 2460338.554664 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
387959 2024-01-29 01:18:43 2460338.554664 18.2 0.06 ABMag L-GOTO GOTO-N_GOTO-1 180
387958 2024-01-28 01:00:56 2460337.542324 18.2 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2024-02-25 07:54:22 - 2024-07-08 04:22:40 2460365.8294213 - 2460499.6824074 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
417768 2024-07-08 04:22:40 2460499.6824074 16.9876 0.0447441 ABMag r-ZTF P48_ZTF-Cam
417767 2024-02-25 07:54:22 2460365.8294213 14.2487 0.017216 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2024-02-25 03:37:09 - 2024-02-25 03:37:09 2460365.6507986 - 2460365.6507986 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
417766 2024-02-25 03:37:09 2460365.6507986 17.5708 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
G-Gaia Gaia_Gaia-photometric 2023-12-28 07:29:17 - 2024-03-31 22:27:50 2460306.812 - 2460401.436 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
399916 2024-03-31 22:27:50 2460401.436 15.09 0.2 ABMag G-Gaia Gaia_Gaia-photometric 60 Robot
399915 2023-12-28 07:29:17 2460306.812 21.5 ABMag G-Gaia Gaia_Gaia-photometric Robot [Last non detection]
orange-ATLAS ATLAS-MLO_ATLAS-01 2024-02-01 10:10:14 - 2024-02-01 10:10:14 2460341.92377 - 2460341.92377 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
388445 2024-02-01 10:10:14 2460341.92377 14.203 0.004 19.39 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
orange-ATLAS ATLAS-HKO_ATLAS-02 2024-01-26 11:58:11 - 2024-01-26 11:58:11 2460335.99874 - 2460335.99874 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
388444 2024-01-26 11:58:11 2460335.99874 18.39 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
i-P1 PS1_GPC1 2024-02-19 08:59:38 - 2024-02-19 08:59:38 2460359.87475 - 2460359.87475 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
391934 2024-02-19 08:59:38 2460359.87475 14.07 0 20.7 ABMag i-P1 PS1_GPC1 45 Robot
Clear- Other_Other 2023-10-13 02:20:46 - 2024-04-12 19:01:55 2460230.59775 - 2460413.293 5
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
400880 2024-04-12 19:01:55 2460413.293 14.3 18.3 VegaMag Clear- Other_Other 60 Robot MASTER-Tavrida
400879 2024-04-12 19:00:42 2460413.29215 14.2 18.3 VegaMag Clear- Other_Other 60 Robot MASTER-Tavrida
387838 2024-01-29 06:02:50 2460338.7519676 16.145 STMag Clear- Other_Other 0.35-m f/5.5 reflector
387837 2024-01-27 02:40:37 2460336.6115394 19 STMag Clear- Other_Other 5 P. Wiggins [Last non detection] 0.35-m f/5.5 reflector
400878 2023-10-13 02:20:46 2460230.59775 19.1 VegaMag Clear- Other_Other 60 Robot [Last non detection] MASTER-Tavrida
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 Bibcode Unreal Auto classification
217643 2024-07-08 04:42:18 Fritz Jesper Sollerman (SU),Nabeel Rehemtulla (CIERA,NU) et al. ZTF ZTF 10:21:49.754 +56:55:40.60 2024-02-25 07:54:22.000 14.2487 r-ZTF PSN ZTF24aaghpeh ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
207631 2024-04-12 22:04:44 MASTER Ya.Kechin,V. Lipunov,V.Kornilov et al. MASTER MASTER 10:21:49.740 +56:55:40.40 2024-04-12 19:00:41.760 14.2 Clear- PSN MASTER OT J102149.74+565540.4 MASTER N
207237 2024-04-09 12:45:35 Gaia_Bot1 S.T. Hodgkin,E. Breedt,A. Delgado et al. GaiaAlerts GaiaAlerts 10:21:49.740 +56:55:40.51 2024-03-31 22:27:50.400 15.09 G-Gaia PSN Gaia24bdk GaiaAlerts Confirmed SN II N
202950 2024-02-20 19:02:47 PS1_Bot1 K. C. Chambers,T. de Boer,J. Herman et al. Pan-STARRS Pan-STARRS 10:21:49.738 +56:55:40.46 2024-02-19 08:59:38.400 14.07 i-P1 PSN PS24aap Pan-STARRS N
201085 2024-02-02 17:44:46 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 10:21:49.742 +56:55:40.53 2024-02-01 10:10:13.728 14.203 orange-ATLAS PSN ATLAS24bmx ATLAS N
201053 2024-02-01 15:41:42 YSE_Bot1 D. O. Jones (UC Santa Cruz),K. D. French (Carnegie,Illinois) et al. YSE Pan-STARRS 10:21:49.741 +56:55:40.40 2024-02-01 10:59:08.736 14.06 r-P1 PSN PS24aap Pan-STARRS, YSE N
200881 2024-01-30 09:17:18 GOTO_bot T. Killestein,L. Kelsey,E. Wickens et al. GOTO GOTO 10:21:49.711 +56:55:39.93 2024-01-29 01:18:42.624 18.2 L-GOTO Other GOTO24hm GOTO This transient was discovered with the assistance of the GOTO Kilonova Seekers Citizen Scientists on Zooniverse. The candidate was flagged by volunteers: Valmir Martins de Morais, Sauro Gaudenzi, Virgilio Gonano, M.T. Mazzucato, Mayahuel Torres Guerrero N
200822 2024-01-29 06:27:21 Patrick Wiggins Patrick Wiggins et al. 10:21:50.200 +56:55:36.10 2024-01-29 06:02:50.000 16.145 Clear- PSN NGC 3206 P. Wiggins, University of Utah, Utah, USA reports his discovery off a possible supernova(mag about 16.4) on an unfiltered CCD frame taken 2024 Jan 29 06:02:50 using a 0.35-m f/5.5 reflector near Erda, Utah,USA. 2024TNSTR.281....1W N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
16584 2024-02-15 21:14:14 Nadejda Blagorodnova Mujortova Nadejda Blagorodnova Mujortova, Maxime Wavasseur, Hugo Tranin, Grace Katusiime (Universitat de Barcelona), Lluís Galbany (ICE-CSIC), Viraj Karambelkar (Caltech), Javier Flores-Martin, Samuel Góngora (Calar Alto) CET-3PO SN II 0.003839 1 CET-3PO We report a reclassification fo the transient SN2024bch as SN II. Our follow-up spectrum was obtained as 2x900s exposures with grism G-200 on 2024-01-31T22:38:49 UTC with the low-resolution instrument CAFOS (Calar Alto Faint Object Spectrograph) mounted on the Calar Alto 2.2m telescope. The data was reduced using Python custom-made pipelines. The flux calibration was done using the standard star Hiltner 102. At the epoch of our spectrum (2.7 days after the reported discovery), we detect flash ionisation emission features related to H, He II, and C IV 5801A in addition to weaker He I lines. Because these features are common during the early phases of SNe type II, we reclassify this event as such. 2024TNSCR.465....1M
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
16671 2024-01-31 22:38:49 CA-2.2m / CAFOS 2700 Javier Flores-Martin, Samuel Góngora Maxime Wavasseur, Nadejda Blagorodnova CET-3PO tns_2024bch_2024-01-31_22-38-49_CA-2.2m_CAFOS_CET-3PO.txt Object
16478 2024-01-29 22:47:55 Claudio Balcon Claudio Balcon (Belluno A.O. ISSP) None SN IIn 0.003839 1 GELATO (Harutyunyan et al., 2008, A&A, 488, 383) suggests that this spectrum resembles that of SN1998S 3.5 days after explosion at the redshift of the host galaxy, value from NED. 2024TNSCR.284....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
16565 2024-01-29 21:29:00 Other / Other 5400 Claudio Balcon Claudio Balcon None tns_2024bch_2024-01-29_21-29-00_Other_Other.dat tns_2024bch_2024-01-29_21-29-00_Other_Other.fit Object We obtained the low-resolution spectrum using the FOSC-E5535 spectrograph attached to a 0.41m telescope, in the course of Italian Supernovae Search Project.

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 207237 of Group GaiaAlerts
Previous RA, DEC: 10:21:49.738, +56:55:40.46 (155.457239894, +56.9279057494)
Updated RA, DEC: 10:21:49.740, +56:55:40.51 (155.45725, 56.927919)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 202950 of Group Pan-STARRS
Previous RA, DEC: 10:21:49.742, +56:55:40.53 (155.4572575, +56.927925625)
Updated RA, DEC: 10:21:49.738, +56:55:40.46 (155.457239894, 56.9279057494)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 201085 of Group ATLAS
Previous RA, DEC: 10:21:49.741, +56:55:40.40 (155.457254486, +56.9278892509)
Updated RA, DEC: 10:21:49.742, +56:55:40.53 (155.4572575, 56.927925625)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 201053 of Group Pan-STARRS
Previous RA, DEC: 10:21:50.200, +56:55:36.10 (155.459167, +56.926694)
Updated RA, DEC: 10:21:49.741, +56:55:40.40 (155.457254486, 56.9278892509)

TNS
System

AT Report/s were associated with object

Pan-STARRS AT report/s 201053 for 2024bhz were associated with object 2024bch.
Object 2024bhz was removed from the system.

Ismael
Perez-Fournon

LCOGT (Teide Observatory node) g' imaging

LCOGT (Teide Observatory node) g' imaging of SN 2024bch
2024-01-29 22:56:39 UT
SDSS g' filter, 15 sec
I. Pérez-Fournon and F. Poidevin (IAC and ULL)
SN position: RA (J2000) = 10:21:49.748, Dec (J2000) = +56:55:40.59