RA/DEC (2000)
21:14:52.070 -23:41:29.60
318.716959703 -23.6915545376
Type
SN Ia
Redshift
0.0957
Discovery ReportClassification Report
Reporting Group
MASTER
Discovering Data Source
MASTER
Discovery Date
2025-09-15 02:29:40.416
TNS AT
Y
Public
Y
Discovery Mag
20.1
Filter
Other-
Reporter/s
K.Zhirkov, V.Lipunov, E.Gorbovskoy, A.Kuznetsov, I.Panchenko, N.Tiurina, P.Balanutsa, V.Topolev, D.Vlasenko, G.Antipov, A.Sankovich, Yu.Tselik, Ya.Kechin, V.Senik, A.Chasovnikov, K.Labsina, I. Gorbunov (Lomonosov MSU), O.Gress, N.Budnev (ISU), C.Francile, F. Podesta, R.Podesta, E. Gonzalez (Observatorio Astronomico Felix Aguilar (OAFA), A. Tlatov, D. Dormidontov (Kislovodsk Solar Station of the Pulkovo Observatory), A.Sosnovskij (CrAO), A. Gabovich, V.Yurkov (Blagoveschensk Educational StateUniversity), D.Buckley (SAAO), R.Rebolo (The Instituto de Astrofisica de Canarias), L.Carrasco, J.R.Valdes, V.Chavushyan, V.M.Patino Alvarez, J.Martinez, A.R.Corella, L.H.Rodriguez (INAOE, Guillermo Haro Astrophysics Observatory)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025xrt - 2025-09-22 22:38:30 NOT / ALFOSC (BlackGEM)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

 ▌GOTO-S_GOTO-4_L
 ▌GOTO-N_GOTO-2_L
 ▌ATLAS-CHL_ATLAS-04_cyan
 ▌BG4_BlackGEM-Cam4_BG-q
 ▌BG3_BlackGEM-Cam3_BG-q
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-HKO_ATLAS-02_cyan
 ▌PS1_GPC1_w
 ▌Other_Other_Other
   
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
22090 2025-09-22 22:38:30 NOT / ALFOSC 1500 Veera and Astrid Simon de Wet BlackGEM tns_2025xrt_2025-09-22_22-38-29.868_NOT_ALFOSC_BlackGEM.txt Object The spectrum was obtained with grating 4 during Nordic service time. We thank the observing staff for obtaining these observations.
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-09-29 12:35:31 - 2025-09-29 12:35:31 2460948.024665 - 2460948.024665 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521003 2025-09-29 12:35:31 2460948.024665 18.6 0.08 ABMag L-GOTO GOTO-S_GOTO-4 180
L-GOTO GOTO-N_GOTO-2 2025-08-17 23:25:55 - 2025-08-17 23:25:55 2460905.476329 - 2460905.476329 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
521002 2025-08-17 23:25:55 2460905.476329 18.6 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-09-18 02:43:19 - 2025-09-18 02:43:19 2460936.61341 - 2460936.61341 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
518442 2025-09-18 02:43:19 2460936.61341 19.192 0.17 19.48 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-09-16 03:03:33 - 2025-09-16 03:03:33 2460934.6274653 - 2460934.6274653 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
519157 2025-09-16 03:03:33 2460934.6274653 20.93 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic [Last non detection]
BG-q-BlackGem BG3_BlackGEM-Cam3 2025-09-22 00:46:36 - 2025-09-22 00:46:36 2460940.5323611 - 2460940.5323611 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
519158 2025-09-22 00:46:36 2460940.5323611 18.92 0.08 20.45 ABMag BG-q-BlackGem BG3_BlackGEM-Cam3 60 robotic
r-ZTF P48_ZTF-Cam 2025-09-11 05:31:36 - 2025-09-14 05:32:24 2460929.7302778 - 2460932.7308333 4
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
519958 2025-09-14 05:32:24 2460932.7308333 20.5678 0.292249 20.3047 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
518275 2025-09-14 05:32:24 2460932.7308333 20.5713 0.173034 ABMag r-ZTF P48_ZTF-Cam
519957 2025-09-11 05:31:36 2460929.7302778 19.6534 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
518274 2025-09-11 05:31:36 2460929.7302778 20.1362 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-09-16 07:02:50 - 2025-09-16 07:02:50 2460934.7936343 - 2460934.7936343 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
518276 2025-09-16 07:02:50 2460934.7936343 19.5973 0.19625 ABMag g-ZTF P48_ZTF-Cam
cyan-ATLAS ATLAS-HKO_ATLAS-02 2025-09-16 09:33:30 - 2025-09-16 09:33:30 2460934.89826 - 2460934.89826 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
518441 2025-09-16 09:33:30 2460934.89826 19.31 ABMag cyan-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
w-P1 PS1_GPC1 2025-09-15 07:36:30 - 2025-09-15 07:36:30 2460933.81701 - 2460933.81701 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
546457 2025-09-15 07:36:30 2460933.81701 20.22 0.1 22 ABMag w-P1 PS1_GPC1 45 Robot
Other- Other_Other 2025-07-01 05:36:24 - 2025-09-16 23:55:41 2460857.73361 - 2460935.497 6
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
518011 2025-09-16 23:55:41 2460935.497 19.3 20 VegaMag Other- Other_Other 60 Robot MASTER-OAFA
518010 2025-09-16 23:42:04 2460935.48755 19.3 20.2 VegaMag Other- Other_Other 120 Robot MASTER-OAFA
517667 2025-09-15 03:13:02 2460933.63405 19.6 20.2 VegaMag Other- Other_Other 60 Robot MASTER-OAFA
517666 2025-09-15 02:29:40 2460933.60394 20.1 20.3 VegaMag Other- Other_Other 60 Robot MASTER-OAFA
518009 2025-07-01 05:36:24 2460857.73361 20.5 VegaMag Other- Other_Other 180 Robot [Last non detection] MASTER-OAFA
517665 2025-07-01 05:36:24 2460857.73361 20.5 VegaMag Other- Other_Other 180 Robot [Last non detection] MASTER-OAFA
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
285172 2025-12-31 15:37:24 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 21:14:52.070 -23:41:29.60 2025-09-15 07:36:29.664 20.22 w-P1 PSN PS25lzh Pan-STARRS N
271822 2025-09-30 10:51:10 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 21:14:52.104 -23:41:29.40 2025-09-29 12:35:30.624 18.6 L-GOTO Other GOTO25iau GOTO N
271309 2025-09-25 18:17:49 Fink Julien Peloton,Anais Moller,Emille E. O. Ishida on behalf of the Fink broker et al. Fink ZTF 21:14:52.067 -23:41:29.47 2025-09-14 05:32:23.997 20.5678 r-ZTF PSN ZTF25abrggxu ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25abrggxu N
270945 2025-09-22 08:49:08 BlackGEM_Bot1 H. Tranin,F. Stoppa,D. Pieterse et al. BlackGEM BlackGEM 21:14:52.078 -23:41:29.73 2025-09-22 00:46:36.000 18.92 BG-q-BlackGem 1 PSN BGEM J211452.08-234129.7 BlackGEM N
Related files
File Comments Last Modified (UT) Modified By
tns_2025xrt_atrep_270945.pdf Finder chart 2025-09-22 10:06:23 BlackGEM_Bot1
270632 2025-09-18 23:16:53 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 21:14:52.055 -23:41:30.19 2025-09-18 02:43:18.624 19.192 cyan-ATLAS PSN ATLAS25lqz ATLAS N
270550 2025-09-18 09:06:11 Fritz Daniel Perley (LJMU),Christoffer Fremling (Caltech),Theophile du Laz (Caltech) on behalf of ZTF et al. ZTF ZTF 21:14:52.066 -23:41:29.46 2025-09-14 05:32:23.997 20.5713 r-ZTF PSN ZTF25abrggxu ZTF N
270435 2025-09-17 09:48:56 MASTER M.Shilova,V.Lipunov,E.Gorbovskoy et al. MASTER MASTER 21:14:51.980 -23:41:29.30 2025-09-16 23:42:04.320 19.3 Other- PSN MASTER OT J211451.98-234129.3 MASTER unfiltered N
270294 2025-09-16 07:39:06 MASTER K.Zhirkov,V.Lipunov,E.Gorbovskoy et al. MASTER MASTER 21:14:52.040 -23:41:30.00 2025-09-15 02:29:40.416 20.1 Other- PSN MASTER OT J211452.04-234130.0 MASTER 2025TNSTR3722....1Z N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
22090 2025-09-23 19:12:48 Simon de Wet Simon de Wet (DTU Space), Giorgos Leloudas (DTU Space) BlackGEM SN Ia 0.0957 1 BlackGEM SNID-SAGE (Stoppa 2025, in prep.) shows close matches with Type Ia-norm SNe at a redshift of z=0.0957. 2025TNSCR3832....1d
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
22090 2025-09-22 22:38:30 NOT / ALFOSC 1500 Veera and Astrid Simon de Wet BlackGEM tns_2025xrt_2025-09-22_22-38-29.868_NOT_ALFOSC_BlackGEM.txt Object The spectrum was obtained with grating 4 during Nordic service time. We thank the observing staff for obtaining these observations.

Comments

TNS
System

Wed, 12/31/2025 - 15:37

Object coordinates updated

Object coordinates updated according to AT-report 285172 of Group Pan-STARRS
Previous RA, DEC: 21:14:52.067, -23:41:29.47 (318.716947075, -23.6915188625)
Updated RA, DEC: 21:14:52.070, -23:41:29.60 (318.716959703, -23.6915545376)

TNS
System

Thu, 09/25/2025 - 18:17

Object coordinates updated

Object coordinates updated according to AT-report 271309 of Group ZTF
Previous RA, DEC: 21:14:52.066, -23:41:29.46 (318.7169434, -23.6915162)
Updated RA, DEC: 21:14:52.067, -23:41:29.47 (318.716947075, -23.6915188625)

TNS
System

Thu, 09/18/2025 - 09:06

Object coordinates updated

Object coordinates updated according to AT-report 270550 of Group ZTF
Previous RA, DEC: 21:14:51.980, -23:41:29.30 (318.716583, -23.691472)
Updated RA, DEC: 21:14:52.066, -23:41:29.46 (318.7169434, -23.6915162)

TNS
System

Wed, 09/17/2025 - 09:48

Object coordinates updated

Object coordinates updated according to AT-report 270435 of Group MASTER
Previous RA, DEC: 21:14:52.040, -23:41:30.00 (318.716833, -23.691667)
Updated RA, DEC: 21:14:51.980, -23:41:29.30 (318.716583, -23.691472)