RA/DEC (2000)
18:00:19.249 +61:31:39.56
270.08020602838 +61.527656919651
Type
SN II
Redshift
0.047589
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-08-12 08:25:28.128
TNS AT
Y
Public
Y
Discovery Mag
18.852
Filter
orange-ATLAS
Reporter/s
J. Tonry, L. Denneau, H. Weiland, R. Siverd (IfA, University of Hawaii), N. Erasmus, W. Koorts (South African Astronomical Observatory), A. Jordan, V. Suc (UAI, Obstech), M. R. Alarcón, J. Licandro, P. Nichita (IAC), S. J. Smartt, K. W. Smith (Oxford/QUB), D. R. Young, M. Nicholl, M. Fulton, M. McCollum, T. Moore, J. Weston, X. Sheng, C. R. Angus, A. Wilson, A. Aamer, D. Magill (QUB), P. Ramsden (Birmingham/QUB), L. Shingles (GSI/QUB), S. Srivastav, J. H. Gillanders, H. Stevance, A. J. Cooper, F. Stoppa, J. Tweddle (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025tqj - 2025-08-20 07:50:41 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
▌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

 ▌LAST_LAST-Cam_Clear
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-MLO_ATLAS-01_orange
 ▌ATLAS-HKO_ATLAS-02_orange
   
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
21839 2025-08-20 07:50:41 P60 / SEDM 2700 SEDmRobot ZTF tns_2025tqj_2025-08-20_07-50-41.065166_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
Clear- LAST_LAST-Cam 2025-08-31 17:20:53 - 2025-09-02 21:59:47 2460919.22283 - 2460921.41652 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
515309 2025-09-02 21:59:47 2460921.41652 19.38 ABMag Clear- LAST_LAST-Cam 400
515308 2025-08-31 17:20:53 2460919.22283 20.96 ABMag Clear- LAST_LAST-Cam 400 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-08-16 04:28:26 - 2025-08-16 04:28:26 2460903.686412 - 2460903.686412 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
509593 2025-08-16 04:28:26 2460903.686412 18.7552 0.0765233 20.7074 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
g-ZTF P48_ZTF-Cam 2025-07-31 06:38:22 - 2025-08-16 04:48:47 2460887.7766435 - 2460903.700544 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
509594 2025-08-16 04:48:47 2460903.700544 18.7644 0.0791259 20.7868 ABMag g-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
509592 2025-07-31 06:38:22 2460887.7766435 20.6698 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-08-10 09:20:55 - 2025-08-10 09:20:55 2460897.88953 - 2460897.88953 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
508238 2025-08-10 09:20:55 2460897.88953 18.69 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-08-12 08:25:28 - 2025-08-12 08:25:28 2460899.85102 - 2460899.85102 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
508239 2025-08-12 08:25:28 2460899.85102 18.852 0.087 19.52 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 110 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
269166 2025-09-03 05:46:11 LAST_Bot1 E. O. Ofek (WIS), R. Konno (WIS), E. A. Zimmerman (WIS) et al. LAST LAST 18:00:19.217 +61:31:39.12 2025-09-02 21:59:47.328 19.38 Clear- PSN LAST N
266200 2025-08-17 12:42:44 ALeRCE S. Jurado, F.E. Bauer, F. Forster et al. ALeRCE ZTF 18:00:19.249 +61:31:39.56 2025-08-16 04:28:25.997 18.7552 r-ZTF PSN ZTF25abiwbsb ZTF Early SN candidate (g-rise > 0.12+-0.00 mag/day, r-rise > 0.12+-0.00 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF25abiwbsb N
265548 2025-08-12 10:42:26 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 18:00:19.262 +61:31:39.63 2025-08-12 08:25:28.128 18.852 orange-ATLAS PSN ATLAS25jgl ATLAS 2025TNSTR3156....1T N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21839 2025-08-21 17:32:27 ZTF_Bot1 J. Sollerman, A. Mehla, M. Chu, C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF SN II 0.047589 1 ZTF 2025TNSCR3307....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
21839 2025-08-20 07:50:41 P60 / SEDM 2700 SEDmRobot ZTF tns_2025tqj_2025-08-20_07-50-41.065166_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Wed, 09/03/2025 - 05:46

Object coordinates updated

Object coordinates updated according to AT-report 266200 of Group ZTF
Previous RA, DEC: 18:00:19.249, +61:31:39.56 (270.08020602838, +61.527656919651)
Updated RA, DEC: 18:00:19.249, +61:31:39.56 (270.08020602838, +61.527656919651)

TNS
System

Sun, 08/17/2025 - 12:42

Object coordinates updated

Object coordinates updated according to AT-report 266200 of Group ZTF
Previous RA, DEC: 18:00:19.262, +61:31:39.63 (270.080257778, +61.5276744444)
Updated RA, DEC: 18:00:19.249, +61:31:39.56 (270.08020602838, +61.527656919651)