RA/DEC (2000)
10:06:57.670 +01:55:37.43
151.740293 +1.927064
Type
SN Ia
Redshift
0.15
Related AstroNotes: 2026-89
Reporting Group
DESIRT
Discovering Data Source
DESIRT
Discovery Date
2026-02-07 07:09:26.208
TNS AT
Y
Public
Y
Discovery Mag
20.7106
Filter
r-Sloan
Reporter/s
Xander J. Hall (Carnegie Mellon U.), Lei Hu (Carnegie Mellon U.), Antonella Palmese (Carnegie Mellon U.), Brendan O'Connor (Carnegie Mellon U.), Yuhan Chen (UC Berkeley), Aidan Catalano (Carnegie Mellon U.), Xingzhuo Chen (Texas A&M U.), Lifan Wang (Texas A&M U.), Tomás Cabrera (Carnegie Mellon U.), Keerthi Kunnumkai (Carnegie Mellon U.) on behalf of the DECam DESI Transients Survey team

Spectra

 SN_2026ctw - 2026-02-23 06:15:01 P200 / NGPS (ZTF)z=
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Show Tellurics 
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 Rubin_LSSTCam_g
 GOTO-N_GOTO-1_L
 P48_ZTF-Cam_g
 CTIO-4m_DECAM_r
 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
23049 2026-02-23 06:15:01 P200 / NGPS Sam Rose Sam Rose ZTF tns_2026ctw_2026-02-23_06-15-01_P200_NGPS_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
g-LSST Rubin_LSSTCam 2026-02-20 06:45:52 - 2026-02-20 06:45:52 2461091.7818519 - 2461091.7818519 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
561391 2026-02-20 06:45:52 2461091.7818519 19.66 0.05 ABMag g-LSST Rubin_LSSTCam
L-GOTO GOTO-N_GOTO-1 2026-02-08 00:47:23 - 2026-02-09 01:15:13 2461079.532914 - 2461080.552235 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
557695 2026-02-09 01:15:13 2461080.552235 20.17 0.21 ABMag L-GOTO GOTO-N_GOTO-1 180
557694 2026-02-08 00:47:23 2461079.532914 19.8 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
g-ZTF P48_ZTF-Cam 2026-02-07 10:12:20 - 2026-02-08 06:10:00 2461078.9252315 - 2461079.7569444 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
561280 2026-02-08 06:10:00 2461079.7569444 20.5992 0.323777 20.1441 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
561279 2026-02-07 10:12:20 2461078.9252315 19.6092 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
r-Sloan CTIO-4m_DECAM 2026-01-28 07:14:56 - 2026-02-07 07:09:26 2461068.80204 - 2461078.7982175 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
557538 2026-02-07 07:09:26 2461078.7982175 20.7106 0.0729367 ABMag r-Sloan CTIO-4m_DECAM
561333 2026-02-07 07:09:26 2461078.79822 20.892 0.028 23.6532 ABMag r-Sloan CTIO-4m_DECAM 50
561332 2026-01-28 07:14:56 2461068.80204 24.2996 ABMag r-Sloan CTIO-4m_DECAM 50 Robot [Last non detection]
w-P1 PS1_GPC1 2026-02-13 09:43:11 - 2026-02-13 09:43:11 2461084.90499 - 2461084.90499 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
559434 2026-02-13 09:43:11 2461084.90499 19.99 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
292863 2026-02-25 02:36:30 K-Ryan Hinds Mansi Kasliwal (Caltech), Michael Coughlin (UMN), Theophile Jegou du Laz (Caltech) et al. ZTF Rubin 10:06:57.670 +01:55:37.43 2026-02-21 00:00:00.000 19.66 g-LSST PSN LSST-P-DO-170019717277810735 Rubin, ZTF Found using Babamul (https://babamul.caltech.edu). BOOM/Babamul is funded by the National Science Foundation under award # 2432476. N
292830 2026-02-24 23:16:32 YSE_DECam C. T. Murphey, A. Arunachalam, G. Nair et al. YSE YSE 10:06:57.673 +01:55:37.43 2026-02-07 07:09:26.208 20.892 r-Sloan PSN YSE N
292803 2026-02-24 19:52:56 Fink Julien Peloton, Anais Moller, Emille E. O. Ishida on behalf of the Fink broker Fink ZTF 10:06:57.672 +01:55:37.41 2026-02-08 06:09:59.996 20.5992 g-ZTF PSN ZTF26aagmisy ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF26aagmisy N
291861 2026-02-19 11:43:11 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 10:06:57.666 +01:55:37.44 2026-02-13 09:43:11.136 19.99 w-P1 PSN PS26aga Pan-STARRS N
290915 2026-02-11 16:36:29 GOTO_bot J. Lyman, K. Ackley, M. Dyer et al. GOTO GOTO 10:06:57.657 +01:55:37.47 2026-02-09 01:15:12.672 20.17 L-GOTO Other GOTO26auz GOTO N
290830 2026-02-10 20:45:31 DESIRT_Bot Xander J. Hall (Carnegie Mellon U.), Lei Hu (Carnegie Mellon U.), Antonella Palmese (Carnegie Mellon U.) et al. DESIRT DESIRT 10:06:57.670 +01:55:37.43 2026-02-07 07:09:26.208 20.7106 r-Sloan PSN T202602071006577p015538 DESIRT Discovered in a joint DESIRT/YSE Field 2026TNSTR.571....1H N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23048 2026-02-23 21:15:01 ZTF_Bot1 S. Rose, K. Hinds, C. Fremling, J. Castaneda Jaimes, T. du Laz, T. Culino, M. Kasliwal (Caltech), M. Coughlin (UoM) on behalf of the ZTF LIONS collaboration ZTF SN Ia 0.15 1 ZTF 2026TNSCR.772....1R
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
23049 2026-02-23 06:15:01 P200 / NGPS Sam Rose Sam Rose ZTF tns_2026ctw_2026-02-23_06-15-01_P200_NGPS_ZTF.ascii Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 292863 of Group Rubin
Previous RA, DEC: 10:06:57.666, +01:55:37.44 (151.740275825, +1.9270664942)
Updated RA, DEC: 10:06:57.670, +01:55:37.43 (151.740293, +1.927064)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 291861 of Group Pan-STARRS
Previous RA, DEC: 10:06:57.657, +01:55:37.47 (151.740236, +1.927076)
Updated RA, DEC: 10:06:57.666, +01:55:37.44 (151.740275825, +1.9270664942)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 290915 of Group GOTO
Previous RA, DEC: 10:06:57.670, +01:55:37.43 (151.7402922241, +1.9270650347641)
Updated RA, DEC: 10:06:57.657, +01:55:37.47 (151.740236, +1.927076)