RA/DEC (2000)
11:42:09.241 -18:41:04.66
175.538503496 -18.6846264057
Type
SN Ia
Redshift
0.05
Related AstroNotes: 2025-44
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-01-20 00:55:59.232
TNS AT
Y
Public
Y
Discovery Mag
18.401
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), 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 (Oxford), L. Rhodes (TSI/McGill), A. Rest (STScI), T.-W. Chen (NCU), C. Stubbs (Harvard), J. S. Sommer (LMU), B. P. Schmidt (ANU)

Spectra

 SN_2025xj - 2025-01-26 00:00:00 FLWO-1.5m / FAST (YSE)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
 ATLAS-CHL_ATLAS-04_orange
 ATLAS-STH_ATLAS-03_orange
 GOTO-N_GOTO-1_L
 P48_ZTF-Cam_r
 P48_ZTF-Cam_g
   
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
20281 2025-01-26 00:00:00 FLWO-1.5m / FAST Gilbert Esquerdo, Perry Berlind Jessica Mink, S. Karthik Yadavalli, Kaylee de Soto, Yize Dong YSE tns_2025xj_2025-01-26_FLWO-1.5m_FAST_YSE.txt tns_2025xj_2025-01-26_FLWO-1.5m_FAST_YSE.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
w-P1 PS2_GPC2 2025-01-25 12:41:01 - 2025-01-25 12:41:01 2460701.02848 - 2460701.02848 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
467204 2025-01-25 12:41:01 2460701.02848 17.8 0.01 22 ABMag w-P1 PS2_GPC2 45 Robot
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-01-18 08:46:17 - 2025-01-18 08:46:17 2460693.86547 - 2460693.86547 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
463614 2025-01-18 08:46:17 2460693.86547 18.41 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
orange-ATLAS ATLAS-STH_ATLAS-03 2025-01-20 00:55:59 - 2025-01-20 00:55:59 2460695.53888 - 2460695.53888 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
463615 2025-01-20 00:55:59 2460695.53888 18.401 0.175 18.62 ABMag orange-ATLAS ATLAS-STH_ATLAS-03 30 Robot
L-GOTO GOTO-N_GOTO-1 2025-01-16 03:35:25 - 2025-01-24 05:02:14 2460691.649588 - 2460699.709891 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
464247 2025-01-24 05:02:14 2460699.709891 17.95 0.07 ABMag L-GOTO GOTO-N_GOTO-1 180
464246 2025-01-16 03:35:25 2460691.649588 18 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-01-17 10:24:12 - 2025-01-17 10:24:12 2460692.9334722 - 2460692.9334722 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
463850 2025-01-17 10:24:12 2460692.9334722 18.998 0.141494 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-01-16 10:34:09 - 2025-01-21 11:23:53 2460691.9403819 - 2460696.974919 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
463851 2025-01-21 11:23:53 2460696.974919 18.0779 0.0660652 ABMag g-ZTF P48_ZTF-Cam
463849 2025-01-16 10:34:09 2460691.9403819 18.3886 ABMag g-ZTF P48_ZTF-Cam [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
243614 2025-02-06 17:23:07 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 11:42:09.241 -18:41:04.66 2025-01-25 12:41:00.672 17.8 w-P1 PSN PS25lh Pan-STARRS N
242255 2025-01-24 08:51:07 GOTO_bot G. Ramsay,K. Ackley,M. Dyer et al. GOTO GOTO 11:42:09.234 -18:41:04.83 2025-01-24 05:02:14.496 17.95 L-GOTO Other GOTO25md GOTO N
241980 2025-01-21 11:32:21 Fritz Nabeel Rehemtulla (CIERA,NU),Christoffer Fremling (Caltech) et al. ZTF ZTF 11:42:09.251 -18:41:04.81 2025-01-17 10:24:11.998 18.998 r-ZTF PSN ZTF25aactdcs ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
241813 2025-01-20 14:47:58 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 11:42:09.273 -18:41:04.75 2025-01-20 00:55:59.232 18.401 orange-ATLAS PSN ATLAS25aoj ATLAS 2025TNSTR.265....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
20281 2025-01-30 23:36:17 Yize Dong S. Karthik Yadavalli (Harvard/CfA), Yize Dong (Harvard/CfA), Kaylee de Soto (Harvard/CfA), V. Ashley Villar (Harvard/CfA), Matthew Grayling (Cambridge), Erin Hayes (Cambridge), Kaisey S. Mandel (Cambridge), Diego Farias (DARK/NBI), Christa Gall (DARK/NBI), Aprajita Hajela (DARK/NBI), Jens Hjorth (DARK/NBI), Luca Izzo (DARK/NBI), Danial Langeroodi (DARK/NBI), Aidan Sedgewick (DARK/NBI), Radek Wojtak, Sandra Raimundo (DARK/NBI+ U. Southampton), Charlie Kilpatrick (Northwestern), Steven Smartt (QUB/Oxford), Ken W. Smith (QUB/Oxford), Charlotte Angus (QUB), David Coulter (STScI), Justin Pierel (STScI), Armin Rest (STScI), Matthew Seibert (STScI), Prasiddha Arunachalam (UC Santa Cruz), Kyle W. Davis (UC Santa Cruz), Ryan J. Foley (UC Santa Cruz), Rav Kaur (UC Santa Cruz), Phillip Macias (UC Santa Cruz), Kishore Patra (UC Santa Cruz), César Rojas-Bravo (UC Santa Cruz), Enrico Ramirez-Ruiz (UC Santa Cruz), Kirsty Taggart (UC Santa Cruz), Ken C. Chambers (U Hawaii), David Jones (U Hawaii), Mark E. Huber (U Hawaii), Eugene A. Magnier (U Hawaii), R. J. Wainscoat (U Hawaii), Henna Abunemeh (UIUC), Nicholas Earl (UIUC), K. Decker French (UIUC), Ayan Mitra (UIUC), Tanner Murphey (UIUC), Jack O’Brien (UIUC), Haille Perkins (UIUC), Gautham Narayan (UIUC), Margaret Shepherd (UIUC), Margaret Verrico (UIUC), Amanda Wasserman (UIUC), Maria Drout (U. Toronto), Vivienne Baldasarre (Washington State University), Alexander Messick (Washington State University), Sandra Raimundo (U. Southampton), Katie Auchettl (University of Melbourne), Stephen Thorpe (Stockholm University), Yen-Chen Pan (National Central University) YSE SN Ia 0.05 1 YSE The best match from SNID is Type Ia at redshift of 0.05 around peak 2025TNSCR.423....1Y
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
20281 2025-01-26 00:00:00 FLWO-1.5m / FAST Gilbert Esquerdo, Perry Berlind Jessica Mink, S. Karthik Yadavalli, Kaylee de Soto, Yize Dong YSE tns_2025xj_2025-01-26_FLWO-1.5m_FAST_YSE.txt tns_2025xj_2025-01-26_FLWO-1.5m_FAST_YSE.fits Object

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 243614 of Group Pan-STARRS
Previous RA, DEC: 11:42:09.251, -18:41:04.81 (175.5385442, -18.6846683)
Updated RA, DEC: 11:42:09.241, -18:41:04.66 (175.538503496, -18.6846264057)

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 241980 of Group ZTF
Previous RA, DEC: 11:42:09.273, -18:41:04.75 (175.538636667, -18.6846533333)
Updated RA, DEC: 11:42:09.251, -18:41:04.81 (175.5385442, -18.6846683)