RA/DEC (2000)
01:22:22.875 -21:16:25.54
20.5953128125 -21.27376185
Type
SN Ia
Redshift
0.07
Discovery ReportClassification Report
Related AstroNotes: 2025-277
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-08-29 02:11:12.768
TNS AT
Y
Public
Y
Discovery Mag
19.525
Filter
wide-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_2025wdo - 2025-08-31 03:04:42 NOT / ALFOSC (GOTO)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

 ▌ATLAS-TDO_ATLAS-05_wide
 ▌GOTO-S_GOTO-4_L
 ▌GOTO-S_GOTO-3_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌CTIO-4m_DECAM_g
 ▌ATLAS-MLO_ATLAS-01_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
21932 2025-08-31 03:04:42 NOT / ALFOSC I. Worssam, M. Pursiainen I. Worssam, M. Pursiainen GOTO tns_2025wdo_2025-08-31_03-04-42.234_NOT_ALFOSC_GOTO.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-08-29 02:11:13 - 2025-08-29 02:11:13 2460916.59112 - 2460916.59112 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
513747 2025-08-29 02:11:13 2460916.59112 19.525 0.124 20.02 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
L-GOTO GOTO-S_GOTO-4 2025-08-28 15:02:19 - 2025-08-28 15:02:19 2460916.12661 - 2460916.12661 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514240 2025-08-28 15:02:19 2460916.12661 19.43 0.2 ABMag L-GOTO GOTO-S_GOTO-4 90
L-GOTO GOTO-S_GOTO-3 2025-08-27 15:59:06 - 2025-08-27 15:59:06 2460915.166038 - 2460915.166038 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
514239 2025-08-27 15:59:06 2460915.166038 19.8 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-08-23 10:44:31 - 2025-08-29 10:01:21 2460910.947581 - 2460916.9176042 3
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
513866 2025-08-29 10:01:21 2460916.9176042 19.6719 0.0946572 ABMag r-ZTF P48_ZTF-Cam
515955 2025-08-29 10:01:21 2460916.9176042 19.6695 0.160859 20.1106 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF, classified by Fink
515954 2025-08-23 10:44:31 2460910.947581 20.092 ABMag r-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF, classified by Fink
g-ZTF P48_ZTF-Cam 2025-08-25 10:23:53 - 2025-08-29 10:59:02 2460912.9332523 - 2460916.957662 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
513867 2025-08-29 10:59:02 2460916.957662 19.7066 0.172903 ABMag g-ZTF P48_ZTF-Cam
513865 2025-08-25 10:23:53 2460912.9332523 19.9705 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
g-Sloan CTIO-4m_DECAM 2025-08-29 03:17:57 - 2025-08-29 03:17:57 2460916.6374581 - 2460916.6374581 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
530723 2025-08-29 03:17:57 2460916.6374581 19.6691 0.0137226 ABMag g-Sloan CTIO-4m_DECAM
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-08-24 11:48:20 - 2025-08-24 11:48:20 2460911.9919 - 2460911.9919 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
513746 2025-08-24 11:48:20 2460911.9919 20.23 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 110 Robot [Last non detection]
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
276567 2025-11-12 23:27:33 DESIRT_Bot Xander J. Hall (Carnegie Mellon U.),Lei Hu (Carnegie Mellon U.),Antonella Palmese (Carnegie Mellon U.) et al. DESIRT DESIRT 01:22:22.865 -21:16:25.62 2025-08-29 03:17:56.544 19.6691 g-Sloan PSN T202508290122229m211626 DESIRT N
269450 2025-09-06 18:15:45 Fink Julien Peloton,Anais Moller,Emille E. O. Ishida on behalf of the Fink broker et al. Fink ZTF 01:22:22.875 -21:16:25.54 2025-08-29 10:01:21.003 19.6695 r-ZTF PSN ZTF25abmxvln ZTF Early SN Ia candidate classified by Fink using the public ZTF stream. Object data at https://fink-portal.org/ZTF25abmxvln N
268625 2025-08-30 17:01:08 GOTO_bot M. Pursiainen,D. O'Neill,K. Ackley et al. GOTO GOTO 01:22:22.865 -21:16:25.62 2025-08-28 15:02:19.104 19.43 L-GOTO Other GOTO25goh GOTO N
268440 2025-08-29 12:41:59 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 01:22:22.871 -21:16:25.52 2025-08-29 10:01:21.002 19.6719 r-ZTF PSN ZTF25abmxvln ZTF N
268381 2025-08-29 09:33:15 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 01:22:22.868 -21:16:25.76 2025-08-29 02:11:12.768 19.525 wide-ATLAS PSN ATLAS25ksd ATLAS 2025TNSTR3431....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
21932 2025-08-31 08:41:27 Joe Lyman I. Worssam, M. Pursiainen, D. O'Neill, J. Lyman, T. Killestein, K. Ackley, M. Dyer, K. Ulaczyk, D. Steeghs, D. Galloway, V. Dhillon, P. O'Brien, G. Ramsay, K. Noysena, R. Kotak, R. Breton, J. Casares, L. Nuttall, B. Godson, A. Kumar on behalf of GOTO collaboration GOTO SN Ia 0.07 1 GOTO Good matches to SN Ia around one week pre-peak. Redshift from template. 2025TNSCR3484....1W
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
21932 2025-08-31 03:04:42 NOT / ALFOSC I. Worssam, M. Pursiainen I. Worssam, M. Pursiainen GOTO tns_2025wdo_2025-08-31_03-04-42.234_NOT_ALFOSC_GOTO.dat Object

Comments

TNS
System

Sat, 09/06/2025 - 18:15

Object coordinates updated

Object coordinates updated according to AT-report 269450 of Group ZTF
Previous RA, DEC: 01:22:22.871, -21:16:25.52 (20.5952974, -21.273755)
Updated RA, DEC: 01:22:22.875, -21:16:25.54 (20.5953128125, -21.27376185)

TNS
System

Fri, 08/29/2025 - 12:42

Object coordinates updated

Object coordinates updated according to AT-report 268440 of Group ZTF
Previous RA, DEC: 01:22:22.868, -21:16:25.76 (20.5952833333, -21.2738216667)
Updated RA, DEC: 01:22:22.871, -21:16:25.52 (20.5952974, -21.273755)