RA/DEC (2000)
18:16:20.846 +47:49:04.90
274.086858999 +47.8180265944
Type
SN Ia
Redshift
0.05
Discovery ReportClassification Report
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-07-26 00:22:48.576
TNS AT
Y
Public
Y
Discovery Mag
18.19
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_2025sqm - 2025-08-07 23:47:00 BL41 / FOSC-E5535 (None)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-N_GOTO-2_L
 ▌ATLAS-HKO_ATLAS-02_orange
 ▌PS1_GPC1_i
   
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
21719 2025-08-07 23:47:00 BL41 / FOSC-E5535 4500 Balcon Balcon None tns_2025sqm_2025-08-07_23-47-00_BL41_FOSC-E5535_None.dat tns_2025sqm_2025-08-07_23-47-00_BL41_FOSC-E5535_None.fit Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
wide-ATLAS ATLAS-TDO_ATLAS-05 2025-07-26 00:22:49 - 2025-07-26 00:22:49 2460882.51584 - 2460882.51584 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
506168 2025-07-26 00:22:49 2460882.51584 18.19 0.05 20.34 ABMag wide-ATLAS ATLAS-TDO_ATLAS-05 30 Robot
L-GOTO GOTO-N_GOTO-2 2025-07-17 23:45:31 - 2025-09-03 21:06:38 2460874.489937 - 2460922.379609 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
515871 2025-09-03 21:06:38 2460922.379609 19.03 0.09 ABMag L-GOTO GOTO-N_GOTO-2 360
515870 2025-07-17 23:45:31 2460874.489937 19.5 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-07-25 06:53:35 - 2025-07-25 06:53:35 2460881.78721 - 2460881.78721 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
506167 2025-07-25 06:53:35 2460881.78721 19.66 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
i-P1 PS1_GPC1 2025-08-13 11:00:11 - 2025-08-13 11:00:11 2460900.95846 - 2460900.95846 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
510309 2025-08-13 11:00:11 2460900.95846 18.17 0.04 20.7 ABMag i-P1 PS1_GPC1 45 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
269424 2025-09-06 08:01:10 GOTO_bot S. Belkin,G. Ramsay,K. Ackley et al. GOTO GOTO 18:16:20.845 +47:49:04.24 2025-09-03 21:06:38.304 19.03 L-GOTO Other GOTO25gvm GOTO N
266615 2025-08-19 17:45:12 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 18:16:20.846 +47:49:04.90 2025-08-13 11:00:10.944 18.17 i-P1 PSN PS25grj Pan-STARRS N
264341 2025-07-30 12:46:28 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 18:16:20.850 +47:49:04.78 2025-07-26 00:22:48.576 18.19 wide-ATLAS PSN ATLAS25inh ATLAS 2025TNSTR2983....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
21719 2025-08-08 07:33:19 Claudio Balcon Claudio Balcon (Belluno A.O. ISSP) None SN Ia 0.05 1 GELATO Harutyunyan et al., 2008, A&A, 488, 383 (gelato.tng.iac.es) suggests that this spectrum resembles that of a type Ia supernova at the redshift of the host galaxy, value from NED. 2025TNSCR3119....1B
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
21719 2025-08-07 23:47:00 BL41 / FOSC-E5535 4500 Balcon Balcon None tns_2025sqm_2025-08-07_23-47-00_BL41_FOSC-E5535_None.dat tns_2025sqm_2025-08-07_23-47-00_BL41_FOSC-E5535_None.fit Object

Comments

TNS
System

Tue, 08/19/2025 - 17:45

Object coordinates updated

Object coordinates updated according to AT-report 266615 of Group Pan-STARRS
Previous RA, DEC: 18:16:20.850, +47:49:04.78 (274.086873913, +47.8179952174)
Updated RA, DEC: 18:16:20.846, +47:49:04.90 (274.086858999, +47.8180265944)