RA/DEC (2000)
08:27:25.176 +01:50:52.46
126.854901927 +1.84790524929
Type
SN II
Redshift
0.031422
Reporting Group
GOTO
Discovering Data Source
GOTO
Discovery Date
2025-01-30 12:47:10.464
TNS AT
Y
Public
Y
Discovery Mag
18.89
Filter
L-GOTO
Reporter/s
D. O'Neill, K. Ackley, M. Dyer, F. Jiménez-Ibarra, J. Lyman, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, L. Nuttall, E. Pallé, D. Pollacco, T. Killestein, A. Kumar, on behalf of GOTO collaboration

Spectra

 SN_2025alk - 2025-02-08 04:49:18 P60 / SEDM (ZTF)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
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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

 LAST_LAST-Cam_Clear
 GOTO-S_GOTO-4_L
 PS2_GPC2_w
 ATLAS-CHL_ATLAS-04_cyan
 ATLAS-STH_ATLAS-03_orange
 BG4_BlackGEM-Cam4_BG-q
 ML1_MeerLICHT-Cam_BG-q
 P48_ZTF-Cam_i
 P48_ZTF-Cam_r
   
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
20370 2025-02-08 04:49:18 P60 / SEDM 2700 SEDmRobot ZTF tns_2025alk_2025-02-08_04-49-17.714054_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
Clear- LAST_LAST-Cam 2025-02-27 17:51:26 - 2025-02-27 18:58:23 2460734.24405 - 2460734.29054 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
472360 2025-02-27 18:58:23 2460734.29054 19.87 ABMag Clear- LAST_LAST-Cam 400
472359 2025-02-27 17:51:26 2460734.24405 20.58 ABMag Clear- LAST_LAST-Cam 400 [Last non detection]
L-GOTO GOTO-S_GOTO-4 2025-01-27 12:24:54 - 2025-01-30 12:47:10 2460703.017291 - 2460706.032759 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
465548 2025-01-30 12:47:10 2460706.032759 18.89 0.1 ABMag L-GOTO GOTO-S_GOTO-4 180
465547 2025-01-27 12:24:54 2460703.017291 19.9 ABMag L-GOTO GOTO-S_GOTO-4 180 [Last non detection]
w-P1 PS2_GPC2 2025-02-17 06:56:41 - 2025-02-17 06:56:41 2460723.78936 - 2460723.78936 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
474128 2025-02-17 06:56:41 2460723.78936 19.05 0.02 22 ABMag w-P1 PS2_GPC2 45 Robot
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-02-01 05:34:10 - 2025-02-01 05:34:10 2460707.73206 - 2460707.73206 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
465970 2025-02-01 05:34:10 2460707.73206 19.082 0.159 19.45 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
orange-ATLAS ATLAS-STH_ATLAS-03 2025-01-30 00:10:47 - 2025-01-30 00:10:47 2460705.50749 - 2460705.50749 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
465969 2025-01-30 00:10:47 2460705.50749 19.45 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot [Last non detection]
BG-q-BlackGem BG4_BlackGEM-Cam4 2025-01-31 05:25:33 - 2025-01-31 05:25:33 2460706.7260764 - 2460706.7260764 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
465725 2025-01-31 05:25:33 2460706.7260764 19.17 0.08 20.91 ABMag BG-q-BlackGem BG4_BlackGEM-Cam4 60 robotic
BG-q-BlackGem ML1_MeerLICHT-Cam 2021-04-28 09:29:59 - 2021-04-28 09:29:59 2459332.8958218 - 2459332.8958218 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
465724 2021-04-28 09:29:59 2459332.8958218 20.82 ABMag BG-q-BlackGem ML1_MeerLICHT-Cam 60 robotic [Last non detection]
i-ZTF P48_ZTF-Cam 2025-01-24 10:13:47 - 2025-01-24 10:13:47 2460699.9262384 - 2460699.9262384 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
466773 2025-01-24 10:13:47 2460699.9262384 19.1583 ABMag i-ZTF P48_ZTF-Cam [Last non detection]
r-ZTF P48_ZTF-Cam 2025-01-30 07:05:28 - 2025-02-04 05:28:42 2460705.795463 - 2460710.7282639 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
466775 2025-02-04 05:28:42 2460710.7282639 19.0511 0.159242 ABMag r-ZTF P48_ZTF-Cam
466774 2025-01-30 07:05:28 2460705.795463 19.5263 0.172233 ABMag r-ZTF P48_ZTF-Cam
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
247135 2025-03-08 18:03:44 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 08:27:25.176 +01:50:52.46 2025-02-17 06:56:40.704 19.05 w-P1 PSN PS25zp Pan-STARRS N
246180 2025-02-27 21:31:33 LAST_Bot1 R. Konno (WIS),E. Zimmerman (WIS),A. Horowicz (WIS) et al. LAST LAST 08:27:25.193 +01:50:53.15 2025-02-27 18:58:22.656 19.87 Clear- PSN LAST N
243405 2025-02-04 05:52:24 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 08:27:25.185 +01:50:52.60 2025-01-30 07:05:28.003 19.5263 r-ZTF PSN ZTF25aadeltq ZTF N
243103 2025-02-01 11:03:35 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 08:27:25.201 +01:50:52.72 2025-02-01 05:34:09.984 19.082 cyan-ATLAS PSN ATLAS25ben ATLAS N
242995 2025-01-31 08:32:03 BlackGEM_Bot1 G. Ramsay,H. Tranin,F. Stoppa et al. BlackGEM BlackGEM 08:27:25.173 +01:50:52.45 2025-01-31 05:25:33.000 19.17 BG-q-BlackGem PSN BGEM J082725.17+015052.4 BlackGEM N
Related files
File Comments Last Modified (UT) Modified By
tns_2025alk_atrep_242995_BlackGEM.pdf Finding Chart 2025-01-31 08:32:05 BlackGEM_Bot1
242918 2025-01-30 13:40:19 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 08:27:25.162 +01:50:52.54 2025-01-30 12:47:10.464 18.89 L-GOTO Other GOTO25xp GOTO 2025TNSTR.416....1O N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
20370 2025-02-10 20:24:51 ZTF_Bot1 J. Sollerman, S. Covarrubias, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN II 0.031422 1 ZTF 2025TNSCR.575....1S
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
20370 2025-02-08 04:49:18 P60 / SEDM 2700 SEDmRobot ZTF tns_2025alk_2025-02-08_04-49-17.714054_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 247135 of Group Pan-STARRS
Previous RA, DEC: 08:27:25.173, +01:50:52.45 (126.854888, +1.847903)
Updated RA, DEC: 08:27:25.176, +01:50:52.46 (126.854901927, 1.84790524929)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 242995 of Group BlackGEM
Previous RA, DEC: 08:27:25.162, +01:50:52.54 (126.85484, +1.847928)
Updated RA, DEC: 08:27:25.173, +01:50:52.45 (126.854888, 1.847903)