RA/DEC (2000)
16:32:13.314 +44:24:10.38
248.0554741 +44.4028821
Type
SN Ia
Redshift
0.03
Related AstroNotes: 2025-44
Reporting Group
ATLAS
Discovering Data Source
ATLAS
Discovery Date
2025-01-08 15:18:39.744
TNS AT
Y
Public
Y
Discovery Mag
18.252
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_2025gp - 2025-01-30 04:08:00 Other / Other (None)z=
 SN_2025gp - 2025-01-25 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

 GOTO-N_GOTO-1_L
 P48_ZTF-Cam_r
 P48_ZTF-Cam_g
 ATLAS-HKO_ATLAS-02_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
20270 2025-01-30 04:08:00 Other / Other 3600 Claudio Balcon Claudio Balcon None tns_2025gp_2025-01-30_04-08-00_AAT_AAOmega-2DF_None.dat tns_2025gp_2025-01-30_04-08-00_AAT_AAOmega-2DF_None.fit Object We obtained the low-resolution spectrum R~100 using the FOSC-E5535 spectrograph attached to a 0.41m telescope, in the course of Italian Supernovae Search Project.
20278 2025-01-25 00:00:00 FLWO-1.5m / FAST Gilbert Esquerdo, Perry Berlind Jessica Mink, S. Karthik Yadavalli, Kaylee de Soto, Yize Dong YSE tns_2025gp_2025-01-25_FLWO-1.5m_FAST_YSE.txt tns_2025gp_2025-01-25_FLWO-1.5m_FAST_YSE.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-1 2024-10-23 20:13:08 - 2025-01-13 05:53:52 2460607.342454 - 2460688.745736 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
462172 2025-01-13 05:53:52 2460688.745736 17.32 0.1 ABMag L-GOTO GOTO-N_GOTO-1 180
462171 2024-10-23 20:13:08 2460607.342454 19.5 ABMag L-GOTO GOTO-N_GOTO-1 180 [Last non detection]
r-ZTF P48_ZTF-Cam 2025-01-12 12:23:27 - 2025-01-14 12:27:28 2460688.0162847 - 2460690.0190741 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
462242 2025-01-14 12:27:28 2460690.0190741 17.0027 0.0557444 ABMag r-ZTF P48_ZTF-Cam
462241 2025-01-12 12:23:27 2460688.0162847 17.3375 0.0580724 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2025-01-05 13:22:59 - 2025-01-05 13:22:59 2460681.0576273 - 2460681.0576273 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
462240 2025-01-05 13:22:59 2460681.0576273 19.6863 ABMag g-ZTF P48_ZTF-Cam [Last non detection]
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-01-04 16:06:04 - 2025-01-08 15:18:40 2460680.17088 - 2460684.13796 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
461649 2025-01-08 15:18:40 2460684.13796 18.252 0.101 19.43 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
461648 2025-01-04 16:06:04 2460680.17088 18.76 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 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 Bibcode Unreal Auto classification
241086 2025-01-14 12:39:28 Fritz Nabeel Rehemtulla (CIERA,NU),Christoffer Fremling (Caltech) et al. ZTF ZTF 16:32:13.314 +44:24:10.38 2025-01-12 12:23:26.998 17.3375 r-ZTF PSN ZTF25aabsnyf ZTF Bright (m_peak <= 18.5) transient candidate identified autonomously by BTSbot (Rehemtulla et al. 2024; arXiv:2401.15167). N
241058 2025-01-13 08:45:36 GOTO_bot D. O'Neill,G. Ramsay,K. Ackley et al. GOTO GOTO 16:32:13.276 +44:24:10.07 2025-01-13 05:53:51.936 17.32 L-GOTO Other GOTO25gn GOTO N
240810 2025-01-08 20:52:26 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 16:32:13.355 +44:24:10.15 2025-01-08 15:18:39.744 18.252 orange-ATLAS PSN ATLAS25ahx ATLAS 2025TNSTR.104....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
20278 2025-01-30 23:35:46 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 0.03 1 YSE Using SNID (Blondin & Tonry 2007, ApJ, 666, 1024), we found that 2025gp is consistent with a normal Type Ia 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
20278 2025-01-25 00:00:00 FLWO-1.5m / FAST Gilbert Esquerdo, Perry Berlind Jessica Mink, S. Karthik Yadavalli, Kaylee de Soto, Yize Dong YSE tns_2025gp_2025-01-25_FLWO-1.5m_FAST_YSE.txt tns_2025gp_2025-01-25_FLWO-1.5m_FAST_YSE.fits Object
20270 2025-01-30 05:04:04 Claudio Balcon Claudio Balcon (Belluno A.O. ISSP) None SN Ia 0.031 1 GELATO (Harutyunyan et al., 2008, A&A, 488, 383) suggests that this low S/N spectrum resembles that of a type Ia supernova at the redshift of the host galaxy, value from NED. 2025TNSCR.422....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
20270 2025-01-30 04:08:00 Other / Other 3600 Claudio Balcon Claudio Balcon None tns_2025gp_2025-01-30_04-08-00_AAT_AAOmega-2DF_None.dat tns_2025gp_2025-01-30_04-08-00_AAT_AAOmega-2DF_None.fit Object We obtained the low-resolution spectrum R~100 using the FOSC-E5535 spectrograph attached to a 0.41m telescope, in the course of Italian Supernovae Search Project.

Comments

TNS
System

Object coordinates updated

Object coordinates updated according to AT-report 241086 of Group ZTF
Previous RA, DEC: 16:32:13.355, +44:24:10.15 (248.055646667, +44.40282)
Updated RA, DEC: 16:32:13.314, +44:24:10.38 (248.0554741, 44.4028821)