RA/DEC (2000)
04:38:12.179 +21:09:32.13
69.5507461267 +21.1589260971
Type
SN Ia
Redshift
0.061
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-08-05 14:30:42.624
TNS AT
Y
Public
Y
Discovery Mag
18.877
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_2025thd - 2025-08-18 11:37:38 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

 ▌PS2_GPC2_w
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_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
21814 2025-08-18 11:37:38 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025thd_2025-08-18_11-37-38.081824_P60_SEDM_ZTF.ascii Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
w-P1 PS2_GPC2 2025-08-30 14:37:08 - 2025-08-30 14:37:08 2460918.10912 - 2460918.10912 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
546444 2025-08-30 14:37:08 2460918.10912 19.7 0.05 22 ABMag w-P1 PS2_GPC2 45 Robot
r-ZTF P48_ZTF-Cam 2025-07-28 11:47:05 - 2025-08-13 10:42:49 2460884.9910301 - 2460900.9464005 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
508491 2025-08-13 10:42:49 2460900.9464005 18.7741 0.0701514 ABMag r-ZTF P48_ZTF-Cam
508490 2025-07-28 11:47:05 2460884.9910301 19.9381 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-08-13 11:20:16 - 2025-08-13 11:20:16 2460900.9724074 - 2460900.9724074 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
508492 2025-08-13 11:20:16 2460900.9724074 19.1497 0.162173 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-MLO_ATLAS-01 2025-08-04 14:44:49 - 2025-08-05 14:30:43 2460892.11446 - 2460893.10466 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
507571 2025-08-05 14:30:43 2460893.10466 18.877 0.188 19.28 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 Robot
507570 2025-08-04 14:44:49 2460892.11446 19.1 ABMag orange-ATLAS ATLAS-MLO_ATLAS-01 30 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
285159 2025-12-31 15:34:10 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 04:38:12.179 +21:09:32.13 2025-08-30 14:37:07.968 19.7 w-P1 PSN PS25lyx Pan-STARRS N
265673 2025-08-13 12:30:38 Fritz Aleksandra Bochenek (LJMU),Jesper Sollerman (SU),Christoffer Fremling (Caltech) et al. ZTF ZTF 04:38:12.169 +21:09:32.35 2025-08-13 10:42:49.003 18.7741 r-ZTF PSN ZTF25abiknny ZTF N
265098 2025-08-05 16:25:48 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 04:38:12.143 +21:09:32.18 2025-08-05 14:30:42.624 18.877 orange-ATLAS PSN ATLAS25jcl ATLAS 2025TNSTR3076....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
21814 2025-08-18 12:29:28 ZTF_Bot1 C. Fremling, D. Neill, Y. Sharma on behalf of the SEDM Team (Caltech) and the Zwicky Transient Facility (ZTF) based on SNIascore ZTF SN Ia 0.061 1 ZTF 2025TNSCR3267....1F
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
21814 2025-08-18 11:37:38 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2025thd_2025-08-18_11-37-38.081824_P60_SEDM_ZTF.ascii Object

Comments

TNS
System

Wed, 12/31/2025 - 15:34

Object coordinates updated

Object coordinates updated according to AT-report 285159 of Group Pan-STARRS
Previous RA, DEC: 04:38:12.169, +21:09:32.35 (69.550706, +21.1589856)
Updated RA, DEC: 04:38:12.179, +21:09:32.13 (69.5507461267, +21.1589260971)

TNS
System

Wed, 08/13/2025 - 12:30

Object coordinates updated

Object coordinates updated according to AT-report 265673 of Group ZTF
Previous RA, DEC: 04:38:12.143, +21:09:32.18 (69.550595, +21.1589383333)
Updated RA, DEC: 04:38:12.169, +21:09:32.35 (69.550706, +21.1589856)