RA/DEC (2000)
21:05:19.184 -17:39:09.20
316.329931741 -17.6525545947
Type
SN Ia
Redshift
0.03
Discovery ReportClassification Report
Related AstroNotes: 2025-151
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-04-25 08:29:09.312
TNS AT
Y
Public
Y
Discovery Mag
18.964
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, 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_2025ikn - 2025-05-21 08:46:05 ESO-NTT / EFOSC2-NTT (ePESSTO+)z=
 ▌SN_2025ikn - 2025-05-04 19:12:00 ANU-2.3m / WiFeS (DEBASS)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

 ▌GOTO-S_GOTO-4_L
 ▌GOTO-S_GOTO-3_L
 ▌PS2_GPC2_w
 ▌ATLAS-CHL_ATLAS-04_orange
 ▌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
21086 2025-05-21 08:46:05 ESO-NTT / EFOSC2-NTT 300 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Meng-Han Lee, Miftahul Ma'arif, Yusin Chen ePESSTO+ tns_2025ikn_2025-05-21_08-46-05_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025ikn_2025-05-21_08-46-05_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
20977 2025-05-04 19:12:00 ANU-2.3m / WiFeS 1200 Robotic Bailey Martin DEBASS tns_2025ikn_2025-05-04.8_ANU-2.3m_WiFeS_DEBASS.dat tns_2025ikn_2025-05-04.8_ANU-2.3m_WiFeS_DEBASS.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-S_GOTO-4 2025-05-07 16:15:33 - 2025-05-07 16:15:33 2460803.177464 - 2460803.177464 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
487979 2025-05-07 16:15:33 2460803.177464 16.7 0.02 ABMag L-GOTO GOTO-S_GOTO-4 180
L-GOTO GOTO-S_GOTO-3 2025-04-07 18:43:24 - 2025-04-07 18:43:24 2460773.28014 - 2460773.28014 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
487978 2025-04-07 18:43:24 2460773.28014 19.8 ABMag L-GOTO GOTO-S_GOTO-3 180 [Last non detection]
w-P1 PS2_GPC2 2025-05-28 13:13:41 - 2025-05-28 13:13:41 2460824.05117 - 2460824.05117 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
493405 2025-05-28 13:13:41 2460824.05117 17.51 0.01 22 ABMag w-P1 PS2_GPC2 45 Robot
orange-ATLAS ATLAS-CHL_ATLAS-04 2025-04-24 09:03:06 - 2025-04-25 08:29:09 2460789.87715 - 2460790.85358 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
484343 2025-04-25 08:29:09 2460790.85358 18.964 0.18 19.08 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
484342 2025-04-24 09:03:06 2460789.87715 19.02 ABMag orange-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
r-ZTF P48_ZTF-Cam 2025-05-20 10:23:10 - 2025-05-20 10:23:10 2460815.9327546 - 2460815.9327546 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
489235 2025-05-20 10:23:10 2460815.9327546 17.0744 0.0235012 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-05-17 11:54:28 - 2025-05-17 11:54:28 2460812.9961574 - 2460812.9961574 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
489234 2025-05-17 11:54:28 2460812.9961574 16.8757 0.0259634 ABMag g-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
257652 2025-06-02 23:00:25 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 21:05:19.184 -17:39:09.20 2025-05-28 13:13:41.088 17.51 w-P1 PSN PS25dcl Pan-STARRS N
255526 2025-05-20 10:41:44 Fritz Jesper Sollerman (SU),Christoffer Fremling (Caltech),Daniel Perley (LJMU) et al. ZTF ZTF 21:05:19.181 -17:39:09.21 2025-05-17 11:54:27.999 16.8757 g-ZTF PSN ZTF25aaqojwg ZTF N
254864 2025-05-12 14:53:14 GOTO_bot D. O'Neill,K. Ackley,M. Dyer et al. GOTO GOTO 21:05:19.188 -17:39:09.24 2025-05-07 16:15:32.544 16.7 L-GOTO Other GOTO25cku GOTO N
252729 2025-04-26 15:52:07 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 21:05:19.171 -17:39:09.14 2025-04-25 08:29:09.312 18.964 orange-ATLAS PSN ATLAS25eha ATLAS 2025TNSTR1541....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
21086 2025-05-21 15:59:47 ePESSTOplus_Bot1 Callum Francis Aster, Stefano Pio Cosentino, Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Meng-Han Lee, Miftahul Ma'arif, Yusin Chen, Ofer Yaron on behalf of ePESSTO+ ePESSTO+ SN Ia 0.03 1 Add ePESSTO+ 2025TNSCR1879....1A
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
21086 2025-05-21 08:46:05 ESO-NTT / EFOSC2-NTT 300 Callum Francis Aster, Stefano Pio Cosentino Amar Aryan, Ting-Wan Chen, Yu-Hsing Lee, Meng-Han Lee, Miftahul Ma'arif, Yusin Chen ePESSTO+ tns_2025ikn_2025-05-21_08-46-05_ESO-NTT_EFOSC2-NTT_ePESSTO+.asci tns_2025ikn_2025-05-21_08-46-05_ESO-NTT_EFOSC2-NTT_ePESSTO+.fits Object
20977 2025-05-05 01:48:36 Bailey Martin B. Martin (ANU), C. Lidman (ANU), D. Brout (Boston University), K. Auchettl (University of Melbourne/UCSC), P. Armstrong (ANU), D. Cao (ANU), and L. Rauf (ANU) DEBASS SN Ia 0.02925 1 1 DEBASS Classified with superfit. The best fitting spectrum is SN1996X, a Type Ia. 2025TNSCR1678....1M
Related files
File Comments Last Modified (UT) Modified By
tns_2025ikn_atrep_20977_DEBASS.pdf The best fitting spectrum from superfit. 2025-05-05 01:48:37 Bailey Martin
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
20977 2025-05-04 19:12:00 ANU-2.3m / WiFeS 1200 Robotic Bailey Martin DEBASS tns_2025ikn_2025-05-04.8_ANU-2.3m_WiFeS_DEBASS.dat tns_2025ikn_2025-05-04.8_ANU-2.3m_WiFeS_DEBASS.fits Object

Comments

TNS
System

Mon, 06/02/2025 - 23:00

Object coordinates updated

Object coordinates updated according to AT-report 257652 of Group Pan-STARRS
Previous RA, DEC: 21:05:19.181, -17:39:09.21 (316.3299227, -17.6525573)
Updated RA, DEC: 21:05:19.184, -17:39:09.20 (316.329931741, -17.6525545947)

TNS
System

Tue, 05/20/2025 - 10:41

Object coordinates updated

Object coordinates updated according to AT-report 255526 of Group ZTF
Previous RA, DEC: 21:05:19.171, -17:39:09.14 (316.329878462, -17.6525384615)
Updated RA, DEC: 21:05:19.181, -17:39:09.21 (316.3299227, -17.6525573)