RA/DEC (2000)
18:04:54.502 +39:40:50.16
271.227092487 +39.6806010128
Type
SN Ia
Redshift
0.041
Discovery ReportClassification Report
Reporting Group
XOSS
Discovering Data Source
XOSS
Discovery Date
2025-02-19 22:29:15.936
TNS AT
Y
Public
Y
Host Name
WISEA J180453.62+394034.6
Host Redshift
0.041298
Discovery Mag
18.83
Filter
Clear-
Reporter/s
Jianlin Xu, Mi Zhang, Guoyou Sun, Jiangao Ruan, Jingyuan Zhao, Wenjie Zhou, Yong Ma, Ye, Zhuoyang Chen (Xingming Obs.), Hanjie Tan (AUUK), Guangwei Wu (NAAA), Xing Gao, Ali Esamdin, Chunhai Bai, Yong Wang (XAO), on behalf of the KATS team
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌SN_2025cff - 2025-02-27 22:00:56 Lijiang-2.4m / YFOSC (LiONS)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
z-step:   v-step: 
   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌GOTO-N_GOTO-2_L
 ▌GOTO-N_GOTO-1_L
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌ATLAS-HKO_ATLAS-02_orange
 ▌PS1_GPC1_w
 ▌Other_Other_Clear
   
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
20492 2025-02-27 22:00:56 Lijiang-2.4m / YFOSC Jujia Zhang LiONS tns_2025cff_2025-02-27_22-00-55.660_Lijiang-2.4m_YFOSC_LiONS.dat Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
L-GOTO GOTO-N_GOTO-2 2025-02-14 04:52:57 - 2025-02-14 04:52:57 2460720.703439 - 2460720.703439 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
477309 2025-02-14 04:52:57 2460720.703439 18.8 ABMag L-GOTO GOTO-N_GOTO-2 180 [Last non detection]
L-GOTO GOTO-N_GOTO-1 2025-03-21 04:37:38 - 2025-03-21 04:37:38 2460755.692799 - 2460755.692799 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
477310 2025-03-21 04:37:38 2460755.692799 19.07 0.08 ABMag L-GOTO GOTO-N_GOTO-1 360
r-ZTF P48_ZTF-Cam 2025-02-17 12:53:03 - 2025-02-19 12:11:48 2460724.0368403 - 2460726.0081944 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
470477 2025-02-19 12:11:48 2460726.0081944 19.0787 0.0938303 ABMag r-ZTF P48_ZTF-Cam
470476 2025-02-17 12:53:03 2460724.0368403 18.1433 ABMag r-ZTF P48_ZTF-Cam [Last non detection]
g-ZTF P48_ZTF-Cam 2025-02-21 12:52:10 - 2025-02-21 12:52:10 2460728.0362269 - 2460728.0362269 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
470478 2025-02-21 12:52:10 2460728.0362269 18.8798 0.118312 ABMag g-ZTF P48_ZTF-Cam
orange-ATLAS ATLAS-HKO_ATLAS-02 2025-02-19 15:54:44 - 2025-02-21 13:55:25 2460726.16301 - 2460728.08015 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
470557 2025-02-21 13:55:25 2460728.08015 18.695 0.14 19.15 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot
470556 2025-02-19 15:54:44 2460726.16301 19.03 ABMag orange-ATLAS ATLAS-HKO_ATLAS-02 30 Robot [Last non detection]
w-P1 PS1_GPC1 2025-04-02 14:15:37 - 2025-04-02 14:15:37 2460768.09418 - 2460768.09418 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
480917 2025-04-02 14:15:37 2460768.09418 19.56 0.11 22 ABMag w-P1 PS1_GPC1 45 Robot
Clear- Other_Other 2025-02-19 22:29:16 - 2025-02-19 22:29:16 2460726.43699 - 2460726.43699 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
470371 2025-02-19 22:29:16 2460726.43699 18.83 0.23 19.5 VegaMag Clear- Other_Other 60 Xing Gao
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
251002 2025-04-05 12:10:39 PS1_Bot1 K. C. Chambers, T. de Boer, J. Fairlamb et al. Pan-STARRS Pan-STARRS 18:04:54.502 +39:40:50.16 2025-04-02 14:15:37.152 19.56 w-P1 PSN PS25bdu Pan-STARRS N
249098 2025-03-21 05:47:05 GOTO_bot G. Ramsay, K. Ackley, M. Dyer et al. GOTO GOTO 18:04:54.485 +39:40:50.52 2025-03-21 04:37:37.920 19.07 L-GOTO Other GOTO25bee GOTO N
245361 2025-02-21 21:53:03 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland et al. ATLAS ATLAS 18:04:54.514 +39:40:50.38 2025-02-21 13:55:24.960 18.695 orange-ATLAS PSN ATLAS25bvx ATLAS N
245331 2025-02-21 15:51:33 Fritz Jesper Sollerman (SU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 18:04:54.499 +39:40:50.26 2025-02-19 12:11:47.996 19.0787 r-ZTF PSN ZTF25aagbtlp ZTF N
245294 2025-02-21 14:44:51 Mi Zhang Jianlin Xu, Mi Zhang, Guoyou Sun et al. XOSS XOSS 18:04:54.510 +39:40:50.00 2025-02-19 22:29:15.936 18.83 Clear- PSN WISEA J180453.62+394034.6 KATS25D006 XOSS SN candidate classified by XOSS. Details can be found at http://xjltp.china-vo.org/kats25d006.html 2025TNSTR.704....1X N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
20492 2025-02-28 01:53:14 Liping Li Liping Li, Qian Zhai, Jujia Zhang (YNAO); Xiaofeng Wang(THU) LiONS SN Ia 0.041 1 LiONS The spectrum matches a normal SN Ia at around peak brightness (e.g., SN 2002bo at t = -2d and SN 2001ep at t = 0d via SNID). 2025TNSCR.835....1L
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
20492 2025-02-27 22:00:56 Lijiang-2.4m / YFOSC Jujia Zhang LiONS tns_2025cff_2025-02-27_22-00-55.660_Lijiang-2.4m_YFOSC_LiONS.dat Object

Comments

TNS
System

Sat, 04/05/2025 - 12:10

Object coordinates updated

Object coordinates updated according to AT-report 251002 of Group Pan-STARRS
Previous RA, DEC: 18:04:54.499, +39:40:50.26 (271.227079, +39.6806266)
Updated RA, DEC: 18:04:54.502, +39:40:50.16 (271.227092487, +39.6806010128)

TNS
System

Fri, 02/21/2025 - 15:51

Object coordinates updated

Object coordinates updated according to AT-report 245331 of Group ZTF
Previous RA, DEC: 18:04:54.510, +39:40:50.00 (271.227125, +39.680556)
Updated RA, DEC: 18:04:54.499, +39:40:50.26 (271.227079, 39.6806266)