RA/DEC (2000)
14:03:38.562 +54:18:41.94
210.910674637 +54.3116510708
Type
SN II
Redshift
0.0008
Discovery ReportClassification Report
Related AstroNotes: 2023-119, 2023-120, 2023-123, 2023-124, 2023-125, 2023-127, 2023-128, 2023-129, 2023-130, 2023-132, 2023-133, 2023-135, 2023-131, DRAFT-1297, 2023-136, 2023-137, 2023-139, 2023-140, 2023-141, 2023-142, 2023-143, 2023-146, 2023-147, 2023-145, 2023-150, 2023-153, 2023-154, 2023-155, 2023-156, 2023-157, 2023-160, 2023-161, 2023-144, 2023-170, 2023-172, 2023-175, 2023-180, 2023-181, 2023-190, 2023-209, 2023-211, 2023-212, 2023-213
Reporting Group
None
Discovering Data Source
None
Discovery Date
2023-05-19 17:27:15.000
TNS AT
Y
Public
Y
Host Name
M101
Discovery Mag
14.9
Filter
Clear-
Reporter/s
Koichi Itagaki
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2023ixf - 2023-07-21 21:44:00 Other / Other (None)z=
 ▌SN_2023ixf - 2023-05-25 06:42:58 P60 / SEDM (ZTF)z=
 ▌SN_2023ixf - 2023-05-22 23:50:00 Other / Other (None)z=
 ▌SN_2023ixf - 2023-05-22 18:31:41 HCT-2m / HFOSC (None)z=
 ▌SN_2023ixf - 2023-05-20 21:04:19 HCT-2m / HFOSC (None)z=
 ▌SN_2023ixf - 2023-05-19 22:23:45 LT / SPRAT (None)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_g
 ▌ATLAS-HKO_ATLAS-02_orange
 ▌PS1_GPC1_z
 ▌PS1_GPC1_y
 ▌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
15340 2023-07-21 21:44:00 Other / Other 4500 daniel verilhac & al daniel verilhac None tns_2023IXF_2023-07-21_21-44-00_Other_Other.dat Object 2 months after discovery. This spectra was done with students during an "astromaths" camp
15055 2023-05-25 06:42:58 P60 / SEDM 300 SEDM robot ZTF tns_2023ixf_2023-05-25_06-42-58_P60_SEDM_ZTF.txt Object
15046 2023-05-22 23:50:00 Other / Other Etienne Bertrand Etienne Bertrand None tns_2023ixf_2023-05-22_23-50-00_Other_Other.dat tns_2023ixf_2023-05-22_23-50-00_Other_Other.fit Object
15045 2023-05-22 18:31:41 HCT-2m / HFOSC 720 Pramod Rishabh Singh Teja None tns_2023ixf_2460087.272_HCT-2m_HFOSC.ascii Object Combine spectrum for two grism, Gr7 and Gr8, for 600s and 720s exposure, respectively.
15044 2023-05-20 21:04:19 HCT-2m / HFOSC 900 Rishabh Singh Teja Rishabh Singh Teja None tns_2023ixf_2460085.378_HCT-2m_HFOSC.ascii Object Combine spectrum for two grism, Gr7 and Gr8, for 900s exposure each.
14993 2023-05-19 22:23:45 LT / SPRAT 1200 LTbot Perley None tns_2023ixf_2023-05-10_22-23-45.175_LT_SPRAT.spec Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
g-ZTF P48_ZTF-Cam 2023-05-17 07:35:02 - 2023-05-19 07:45:07 2460081.816 - 2460083.823 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
343777 2023-05-19 07:45:07 2460083.823 15.9 ABMag g-ZTF P48_ZTF-Cam 30 ZTF
343778 2023-05-19 07:45:07 2460083.823 15.9 ABMag g-ZTF P48_ZTF-Cam 30 ZTF
343776 2023-05-17 07:35:02 2460081.816 20.81 ABMag g-ZTF P48_ZTF-Cam 30 ZTF [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2023-06-29 08:17:07 - 2023-07-01 07:52:56 2460124.84522 - 2460126.82843 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
350730 2023-07-01 07:52:56 2460126.82843 11.818 0.004 16.9 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
350729 2023-06-29 08:17:07 2460124.84522 19.19 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
z-P1 PS1_GPC1 2023-05-21 09:50:52 - 2023-05-21 09:50:52 2460085.91032 - 2460085.91032 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
344273 2023-05-21 09:50:52 2460085.91032 12.46 0 20.4 ABMag z-P1 PS1_GPC1 20 Robot
y-P1 PS1_GPC1 2023-05-23 12:55:15 - 2023-05-23 12:55:15 2460088.03837 - 2460088.03837 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
344760 2023-05-23 12:55:15 2460088.03837 11.8 0 18.3 ABMag y-P1 PS1_GPC1 20 Robot
Clear- Other_Other 2023-04-17 13:41:31 - 2023-12-10 11:35:25 2460052.0705 - 2460288.9829282 10
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
378129 2023-12-10 11:35:25 2460288.9829282 14.5 Other Clear- Other_Other D. Rankin Clear filter calibrated to Gaia G. 10K CCD.
370813 2023-10-27 12:43:53 2460245.03048 14.5 16.3 VegaMag Clear- Other_Other 180 Robot MASTER-Amur
370812 2023-10-27 12:42:33 2460245.02955 14.4 16 VegaMag Clear- Other_Other 60 Robot MASTER-Amur
391123 2023-09-19 11:36:33 2460206.98372 13.9 18.2 VegaMag Clear- Other_Other 60 Robot MASTER-Amur
391122 2023-09-19 11:29:54 2460206.9791 13.9 18.2 VegaMag Clear- Other_Other 60 Robot MASTER-Amur
343659 2023-05-19 17:27:15 2460084.2272569 14.9 ABMag Clear- Other_Other 0.35-m F/11 + CCD (KAF-1001E)
343800 2023-05-19 03:41:35 2460083.6538773 15.5 1 18 STMag Clear- Other_Other 60 Stephen Limeburner detected on 60-second exposure with SBIG ST-2000XM binned 3x3 and Meade LX-200 Classic 8-inch SCT at f/6 clear filter mag 15.5 229”east 141”south of nucleus Oak St. Observatory, Coudersport, PA 41.75 degrees N 78.016 degrees W
343799 2023-05-18 03:35:45 2460082.6498264 18.5 STMag Clear- Other_Other 300 [Last non detection] Observed with 8-inch Meade LX-200 at f/6 with focal reducer and SBIG-ST-2000XM CCD camera Observation on previous night(May 18 3:35UT)did not show object nor is it visible in 23 of my images of M101 taken at same location (Oak St. Observatory, Coudersport, PA 41.75 degrees N 78.016 degrees W) since the year 2017.
370811 2023-04-17 13:41:31 2460052.0705 18.9 VegaMag Clear- Other_Other 180 Robot [Last non detection] MASTER-Amur
391121 2023-04-17 13:41:31 2460052.0705 18.9 VegaMag Clear- Other_Other 180 Robot [Last non detection] MASTER-Amur
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
202502 2024-02-15 13:44:35 MASTER P.Balanutsa, V. Lipunov, V.Kornilov et al. MASTER MASTER 14:03:38.550 +54:18:40.80 2023-09-19 11:29:54.240 13.9 Clear- PSN MASTER OT J140338.55+541840.8 MASTER N
195687 2023-12-10 12:10:47 David Rankin David Rankin 14:03:38.540 +54:18:42.60 2023-12-10 11:35:25.000 14.5 Clear- PSN Possible SN in M101. Can't find match in database. N
191852 2023-10-27 13:21:41 MASTER Ya.Kechin, V. Lipunov, V.Kornilov et al. MASTER MASTER 14:03:38.600 +54:18:42.00 2023-10-27 12:42:33.120 14.4 Clear- PSN MASTER OT J140338.60+541842.0 MASTER N
181529 2023-07-01 11:55:22 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 14:03:38.568 +54:18:42.01 2023-07-01 07:52:56.352 11.818 orange-ATLAS PSN ATLAS23ncx ATLAS N
178496 2023-05-24 14:16:55 YSE_Bot1 D. O. Jones (UC Santa Cruz), K. D. French (Carnegie, Illinois), A. Agnello et al. YSE Pan-STARRS 14:03:38.562 +54:18:41.94 2023-05-23 12:55:15.168 11.8 y-P1 PSN PS23dij Pan-STARRS, YSE N
178309 2023-05-22 17:00:38 PS1_Bot1 K. C. Chambers, T. de Boer, J. Bulger et al. Pan-STARRS Pan-STARRS 14:03:38.557 +54:18:42.03 2023-05-21 09:50:51.648 12.46 z-P1 PSN PS23dij Pan-STARRS N
178124 2023-05-20 16:53:34 Stephen Limeburner Stephen Limeburner 14:03:41.000 +54:18:43.00 2023-05-19 03:41:35.000 15.5 Clear- 3 PSN M101 detected on 60-second exposure with SBIG ST-2000XM binned 3x3 and Meade LX-200 Classic 8-inch SCT at f/6 clear filter mag 15.5 229”east 141”south of nucleus Oak St. Observatory, Coudersport, PA 41.75 degrees N 78.016 degrees W N
Related files
File Comments Last Modified (UT) Modified By
tns_2023iyi_atrep_178124.FIT 60-second discovery image 2023-05-20 16:53:35 Stephen Limeburner
tns_2023iyi_atrep_178124_0.FIT 600 second exposure taken 8 minutes after discovery 2023-05-20 16:53:35 Stephen Limeburner
tns_2023iyi_atrep_178124_1.FIT last non-detection 2023-05-20 16:53:35 Stephen Limeburner
178116 2023-05-20 09:23:03 ZTF_Bot1 C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration ZTF ZTF 14:03:38.564 +54:18:42.02 2023-05-19 07:45:07.200 15.9 g-ZTF PSN ZTF23aaklqou ZTF N
178084 2023-05-19 21:42:21 Koichi Itagaki Koichi Itagaki 14:03:38.580 +54:18:42.10 2023-05-19 17:27:15.000 14.9 Clear- PSN M101 2023TNSTR1158....1I N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
15265 2023-07-25 20:23:59 Daniel Verilhac Daniel Verilhac and colo astromath None SN II 0.0008 1 Reduced with Demetra classified with Gelato 2023TNSCR1768....1V
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
15340 2023-07-21 21:44:00 Other / Other 4500 daniel verilhac & al daniel verilhac None tns_2023IXF_2023-07-21_21-44-00_Other_Other.dat Object 2 months after discovery. This spectra was done with students during an "astromaths" camp
14980 2023-05-29 11:53:06 Ofer Yaron Ofer Yaron, on behalf of ZTF ZTF SN II 0.000804 1 ZTF Flash ionization emission lines gone; reverting the classification back to the correct Type II. 2023TNSCR1267....1Y
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
15055 2023-05-25 06:42:58 P60 / SEDM 300 SEDM robot ZTF tns_2023ixf_2023-05-25_06-42-58_P60_SEDM_ZTF.txt Object
14971 2023-05-25 09:44:02 Etienne Bertrand Etienne Bertrand None SN IIn 0.0008 1 2023TNSCR1231....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
15046 2023-05-22 23:50:00 Other / Other Etienne Bertrand Etienne Bertrand None tns_2023ixf_2023-05-22_23-50-00_Other_Other.dat tns_2023ixf_2023-05-22_23-50-00_Other_Other.fit Object
14970 2023-05-25 08:09:05 Rishabh Singh Teja Rishabh Singh Teja (Indian Institute of Astrophysics, IIA), GC Anupama (IIA), DK Sahu (IIA), Mulchand Kurre(IIA), Pramod (IIA) None SN IIn 0.0008 2 1 We observed the spectra on JD2460085.378 and JD2460087.263 with 2-m HCT at IAO. The spectra were checked with GELATO for classification. We found the spectra matched well with Type IIn SN 1998S. 2023TNSCR1233....1T
Related files
File Comments Last Modified (UT) Modified By
tns_2023ixf_classrep_14970.png 2023-05-25 08:09:05 Rishabh Singh Teja
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
15045 2023-05-22 18:31:41 HCT-2m / HFOSC 720 Pramod Rishabh Singh Teja None tns_2023ixf_2460087.272_HCT-2m_HFOSC.ascii Object Combine spectrum for two grism, Gr7 and Gr8, for 600s and 720s exposure, respectively.
15044 2023-05-20 21:04:19 HCT-2m / HFOSC 900 Rishabh Singh Teja Rishabh Singh Teja None tns_2023ixf_2460085.378_HCT-2m_HFOSC.ascii Object Combine spectrum for two grism, Gr7 and Gr8, for 900s exposure each.
14919 2023-05-19 23:35:34 Daniel Perley Daniel Perley (LJMU), Avishay Gal-Yam (Weizmann) None SN II 0.000804 1 The spectrum shows a series of high equivalent width flash ionization lines of H, He, C, and N, typical of Type II SNe in the flash ionization phase (e.g. Yaron et al. 2017). The redshift is the catalogued redshift of the the host galaxy (M101). 2023TNSCR1164....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
14993 2023-05-19 22:23:45 LT / SPRAT 1200 LTbot Perley None tns_2023ixf_2023-05-10_22-23-45.175_LT_SPRAT.spec Object

Comments

TNS
System

Wed, 05/24/2023 - 13:30

Object coordinates updated

Object coordinates updated according to AT-report 178496 of Group Pan-STARRS
Previous RA, DEC: 14:03:38.557, +54:18:42.03 (210.910653712, +54.311674484)
Updated RA, DEC: 14:03:38.562, +54:18:41.94 (210.910674637, 54.3116510708)

TNS
System

Mon, 05/22/2023 - 16:30

Object coordinates updated

Object coordinates updated according to AT-report 178309 of Group Pan-STARRS
Previous RA, DEC: 14:03:38.564, +54:18:42.02 (210.9106833, +54.3116718)
Updated RA, DEC: 14:03:38.557, +54:18:42.03 (210.910653712, 54.311674484)

Joseph
Caruana

Sun, 05/21/2023 - 12:01

Stacked LRGB Image of SN 2023ixf

LRGB image obtained by J. Caruana using a 0.5m Ritchey Chrétien telescope operating @ f/6.0 and SBIG Aluma AC4040 on 2023-05-20 at 19:38:12 UTC (start time of exposures).

m101_panels.jpg
Kirill
Sokolovsky

Sat, 05/20/2023 - 20:19

Stacked color image of SN 2023ixf

Stacked color image (19x300s) obtianed by Nikolay Potapov with D=80mm, F=600mm refractor and Canon EOS 600Da. The indicated time 2023-05-19.7529 UTC is the start time of the first exposure.

M101_supernova_pointer_4.png
TNS
System

Sat, 05/20/2023 - 18:07

AT Report/s were associated with object

None AT report/s 178124 for 2023iyi were associated with object 2023ixf.
Object 2023iyi was removed from the system.

Kirill
Sokolovsky

Sat, 05/20/2023 - 17:12

Early imaging with color camera

Early imaging of PSN J14033858+5418421 = SN 2023ixf was obtained with a wide-field D=80mm, F=600mm refractor and Canon EOS 600Da CMOS camera on 2023-05-19.7529 UTC. The unfiltered tri-color G magnitude (V zero-point) of the SN is TG= 14.27 +/-0.02. The latest image with the same instrument where the SN is not visible was obtained 19 hours earlier on 2023-05-18.94995 (limiting magnitude 17.0).
 ---- Stanislav Korotkiy, Nikolay Potapov, Kirill Sokolovsky

TNS
System

Sat, 05/20/2023 - 08:30

Object coordinates updated

Object coordinates updated according to AT-report 178116 of Group ZTF
Previous RA, DEC: 14:03:38.580, +54:18:42.10 (210.91075, +54.311694)
Updated RA, DEC: 14:03:38.564, +54:18:42.02 (210.9106833, 54.3116718)