RA/DEC (2000)
19:01:41.420 +40:44:42.24
285.422583149 +40.745066861
Type
SN IIb
Redshift
0.015154
Discovery ReportClassification Report
Reporting Group
SGLF
Discovering Data Source
ZTF
Discovery Date
2024-06-15 08:15:05.000
TNS AT
Y
Public
Y
Host Name
NGC 6745 NED01
Host Redshift
0.015158
Discovery Mag
18.736
Filter
r-ZTF
Reporter/s
I. Pérez-Fournon (IAC and ULL), V. Wienzek, H. Akoudad-Ekajouan, C. Arrizabalaga-Díaz-Caneja (ULL), F. Poidevin (IAC and ULL), Z. Delgado-González (ULL), C. Jiménez Angel (GRANTECAN), S. Geier (GRANTECAN, IAC, and ULL), R. Marques-Chaves (Univ. of Geneva), and R. Shirley (MPE) on behalf of SGLF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2024ljc - 2024-06-26 23:56:48 LT / SPRAT (ZTF)z=
 ▌SN_2024ljc - 2024-06-26 00:55:19 LT / SPRAT (CET-3PO)z=
 ▌SN_2024ljc - 2024-06-17 02:57:11 LT / SPRAT (SGLF)z=
▌Show H at z=vexp= km/s
▌Show He at z=vexp= km/s
▌Show He II at z=vexp= km/s
▌Show C II at z=vexp= km/s
▌Show C III at z=vexp= km/s
▌Show C IV at z=vexp= km/s
▌Show N II at z=vexp= km/s
▌Show N III at z=vexp= km/s
▌Show N IV at z=vexp= km/s
▌Show N V at z=vexp= km/s
▌Show O at z=vexp= km/s
▌Show [O I] at z=vexp= km/s
▌Show O II at z=vexp= km/s
▌Show [O II] at z=vexp= km/s
▌Show [O III] at z=vexp= km/s
▌Show O V at z=vexp= km/s
▌Show O VI at z=vexp= km/s
▌Show Na at z=vexp= km/s
▌Show Mg at z=vexp= km/s
▌Show Mg II at z=vexp= km/s
▌Show Si II at z=vexp= km/s
▌Show S II at z=vexp= km/s
▌Show Ca II at z=vexp= km/s
▌Show [Ca II] at z=vexp= km/s
▌Show Fe II at z=vexp= km/s
▌Show Fe III at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Å at z=vexp= km/s
▌Show Tellurics 
▌Show Galaxy lines at z=
▌Show WR-WN at z=vexp= km/s
▌Show WR-WC/O at z=vexp= km/s
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-HKO_ATLAS-02_orange
 ▌PS1_GPC1_w
   
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
17362 2024-06-26 23:56:48 LT / SPRAT Jacob Wise, K-Ryan Hinds, Daniel Perley, Aleksandra Bochenek Jacob Wise ZTF tns_2024ljc_2024-06-26_23-56-48.255_LT_SPRAT_ZTF.spec Object
17508 2024-06-26 00:55:19 LT / SPRAT David Jones CET-3PO tns_2024ljc_2024-06-26_00-55-19_LT_SPRAT_CET-3PO.txt Object
17319 2024-06-17 02:57:11 LT / SPRAT 1500 LTbot I. Pérez-Fournon SGLF tns_2024ljc_2024-06-17_02-57-11_LT_SPRAT_SGLF.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-ZTF P48_ZTF-Cam 2024-06-15 08:15:05 - 2024-06-15 08:15:05 2460476.8438079 - 2460476.8438079 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
412559 2024-06-15 08:15:05 2460476.8438079 18.736 0.049 ABMag r-ZTF P48_ZTF-Cam 30 ZTFbot
g-ZTF P48_ZTF-Cam 2024-06-12 10:12:50 - 2024-06-12 10:12:50 2460473.9255787 - 2460473.9255787 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
412558 2024-06-12 10:12:50 2460473.9255787 20.46 ABMag g-ZTF P48_ZTF-Cam 30 ZTFbot [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2024-06-14 11:14:48 - 2024-06-16 10:39:42 2460475.96861 - 2460477.94424 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
412701 2024-06-16 10:39:42 2460477.94424 18.589 0.143 19.36 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
412700 2024-06-14 11:14:48 2460475.96861 19.48 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
w-P1 PS1_GPC1 2024-07-04 10:19:59 - 2024-07-04 10:19:59 2460495.93054 - 2460495.93054 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
418728 2024-07-04 10:19:59 2460495.93054 18.9 0.06 22 ABMag w-P1 PS1_GPC1 45 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
218518 2024-07-10 15:13:47 PS1_Bot1 K. C. Chambers, T. de Boer, J. Herman et al. Pan-STARRS Pan-STARRS 19:01:41.420 +40:44:42.24 2024-07-04 10:19:58.656 18.9 w-P1 PSN PS24gyb Pan-STARRS N
213690 2024-06-17 08:18:58 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 19:01:41.413 +40:44:42.59 2024-06-16 10:39:42.336 18.589 orange-ATLAS PSN ATLAS24jbc ATLAS N
213581 2024-06-16 19:05:57 Ismael Perez-Fournon I. Pérez-Fournon (IAC and ULL), V. Wienzek, H. Akoudad-Ekajouan et al. SGLF ZTF 19:01:41.435 +40:44:42.23 2024-06-15 08:15:05.000 18.736 r-ZTF PSN NGC 6745 NED01 ZTF24aasdtkt SGLF SN candidate discovered using the public ZTF alerts, the LSST/ZTF brokers, and our SGLF filters. ZTF light curve available at the LSST/ZTF brokers, e.g.: https://lasair-ztf.lsst.ac.uk/objects/ZTF24aasdtkt/ 2024TNSTR1967....1P N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
17421 2024-07-12 13:41:55 Marco A. Gómez-Muñoz Marco A. Gómez-Muñoz, Nadejda Blagorodnova (UB), David Jones (IAC), , Hugo Tranin, Gerard García, Grace Katusiime, Maxime Wavasseur (ICCUB) CET-3PO SN IIb 0.015154 1 1 CET-3PO The classification was carried out using the GELATO SN classification software (Harutyunyan et al., 2008, A&A, 488, 383; https://gelato.tng.iac.es/). We adopted the redshift for the host galaxy as z=0.01515. The observed spectrum shows a 62% match with SN II templates. The best matching spectrum corresponds to SN IIb SN2008ax at ~17d after explosion. 2024TNSCR2402....1G
Related files
File Comments Last Modified (UT) Modified By
tns_2024ljc_classrep_17421_CET-3PO.png 2024-07-12 13:41:55 Marco A. Gómez-Muñoz
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
17508 2024-06-26 00:55:19 LT / SPRAT David Jones CET-3PO tns_2024ljc_2024-06-26_00-55-19_LT_SPRAT_CET-3PO.txt Object
17275 2024-06-27 11:14:37 Jacob Wise Jacob Wise (LJMU), K-Ryan Hinds (LJMU), Daniel Perley (LJMU), Aleksandra Bochenek (LJMU) ZTF SN IIb 0.015154 1 1 ZTF Spectrum is well-fit by SN IIb templates from previously classified events. A redshift of z = 0.015154 ± 0.000007 was obtained from the host galaxy. Classification performed using Next Generation Superfit (NGSF, Goldwasser et al. 2022). 2024TNSCR2147....1W
Related files
File Comments Last Modified (UT) Modified By
tns_2024ljc_classrep_17275_ZTF.pdf 2024-06-27 11:14:38 Jacob Wise
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
17362 2024-06-26 23:56:48 LT / SPRAT Jacob Wise, K-Ryan Hinds, Daniel Perley, Aleksandra Bochenek Jacob Wise ZTF tns_2024ljc_2024-06-26_23-56-48.255_LT_SPRAT_ZTF.spec Object
17232 2024-06-17 21:16:21 Ismael Perez-Fournon I. Pérez-Fournon (IAC and ULL), V. Wienzek, H. Akoudad-Ekajouan, C. Arrizabalaga-Díaz-Caneja (ULL), F. Poidevin (IAC and ULL), Z. Delgado-González (ULL), C. Jiménez Angel (GRANTECAN), S. Geier (GRANTECAN, IAC, and ULL), R. Marques-Chaves (Univ. of Geneva), and R. Shirley (MPE) on behalf of SGLF SGLF SN 0.015157 1 SGLF Likely young SN in the triple irregular galaxy NGC 6745 (UGC 11391). The LT SPRAT spectrum has a red continuum, likely due to obscuration and reddening in the host galaxy, and emission lines from the host galaxy. The transient is at about 5.6" from NGC 6745A, the largest galaxy of the trio of interacting galaxies with spectroscopic redshift of 0.015157 (Zaw et al. 2019, ApJ, 872, 134; info from NED). 2024TNSCR1987....1P
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
17319 2024-06-17 02:57:11 LT / SPRAT 1500 LTbot I. Pérez-Fournon SGLF tns_2024ljc_2024-06-17_02-57-11_LT_SPRAT_SGLF.txt Object

Comments

TNS
System

Sun, 12/22/2024 - 17:58

Object coordinates updated

Object coordinates updated according to AT-report 218518 of Group Pan-STARRS
Previous RA, DEC: 19:01:41.435, +40:44:42.23 (285.422646, +40.745064)
Updated RA, DEC: 19:01:41.420, +40:44:42.24 (285.422583149, 40.745066861)