RA/DEC (2000)
20:59:34.251 -17:44:31.49
314.89271051 -17.7420795047
Type
---
Redshift
Discovery ReportClassification Report
Related AstroNotes: 2025-176
Reporting Group
ALeRCE
Discovering Data Source
ZTF
Discovery Date
2025-05-25 11:01:44.999
TNS AT
Y
Public
Y
Host Name
SDSS J205934.25-174431.6
Discovery Mag
19.7474
Filter
r-ZTF
Reporter/s
S. Jurado, F.E. Bauer, F. Forster, , G. Pignata, A. Munoz-Arancibia, A. Mourao, L. Hernandez-Garcia, L. Galbany, J. Silva-Farfan, R. Dastidar, J.P. Brandt, A. Alvarez, G. Cabrera-Vives, R. Carrasco-Davis, P.A. Estevez, B. Gamboa, P. Huijse, H. Larranaga, C. Mansilla, K. Medina, D. Moreno, E. Munoz, E. Pizarro, I. Reyes, P. Sanchez-Saez, D. Rodriguez-Mancini, M. Catelan, S. Eyheramendy, M.J. Graham on behalf of the ALeRCE broker
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌AT_2025lyx - 2025-06-02 04:01:09 NOT / ALFOSC (BlackGEM)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),

Light curves

 ▌ATLAS-CHL_ATLAS-04_cyan
 ▌BG3_BlackGEM-Cam3_BG-q
 ▌BG2_BlackGEM-Cam2_BG-q
 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌PS1_GPC1_w
   
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
21249 2025-06-02 04:01:09 NOT / ALFOSC 1200 Gerard Garcia-Moreno, Mathias Gort Gerard Garcia-Moreno BlackGEM tns_2025lyx_2460828.6674674884_NOT_ALFOSC_BlackGEM.txt tns_2025lyx_2460828.6674674884_NOT_ALFOSC_BlackGEM.fits Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
cyan-ATLAS ATLAS-CHL_ATLAS-04 2025-05-30 10:10:39 - 2025-05-31 07:24:51 2460825.92406 - 2460826.80892 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
493088 2025-05-31 07:24:51 2460826.80892 18.581 0.114 19.07 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
493087 2025-05-30 10:10:39 2460825.92406 18.18 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
BG-q-BlackGem BG3_BlackGEM-Cam3 2025-05-25 09:38:33 - 2025-05-25 09:38:33 2460820.9017708 - 2460820.9017708 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491638 2025-05-25 09:38:33 2460820.9017708 19.84 0.12 20.74 ABMag BG-q-BlackGem BG3_BlackGEM-Cam3 60 robotic
BG-q-BlackGem BG2_BlackGEM-Cam2 2025-05-24 07:22:15 - 2025-05-24 07:22:15 2460819.8071181 - 2460819.8071181 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491637 2025-05-24 07:22:15 2460819.8071181 20.89 ABMag BG-q-BlackGem BG2_BlackGEM-Cam2 60 robotic [Last non detection]
r-ZTF P48_ZTF-Cam 2025-05-25 11:01:45 - 2025-05-25 11:01:45 2460820.9595486 - 2460820.9595486 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491453 2025-05-25 11:01:45 2460820.9595486 19.7474 0.156056 20.0601 ABMag r-ZTF P48_ZTF-Cam 30 Robot Data provided by ZTF
g-ZTF P48_ZTF-Cam 2025-05-23 10:33:03 - 2025-05-23 10:33:03 2460818.9396181 - 2460818.9396181 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
491452 2025-05-23 10:33:03 2460818.9396181 20.1999 ABMag g-ZTF P48_ZTF-Cam 30 Robot [Last non detection] Data provided by ZTF
w-P1 PS1_GPC1 2025-05-30 13:16:22 - 2025-05-30 13:16:22 2460826.05303 - 2460826.05303 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
493415 2025-05-30 13:16:22 2460826.05303 18.99 0.02 22 ABMag w-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
257662 2025-06-02 23:05:36 PS1_Bot1 K. C. Chambers,T. de Boer,J. Fairlamb et al. Pan-STARRS Pan-STARRS 20:59:34.251 -17:44:31.49 2025-05-30 13:16:21.792 18.99 w-P1 PSN PS25dcw Pan-STARRS N
257464 2025-05-31 16:38:21 ATLAS_Bot1 J. Tonry,L. Denneau,H. Weiland et al. ATLAS ATLAS 20:59:34.235 -17:44:31.42 2025-05-31 07:24:50.688 18.581 cyan-ATLAS PSN ATLAS25fug ATLAS N
256804 2025-05-26 09:57:02 BlackGEM_Bot1 P. Groot,H. Tranin,F. Stoppa et al. BlackGEM BlackGEM 20:59:34.253 -17:44:31.85 2025-05-25 09:38:33.000 19.84 BG-q-BlackGem 1 PSN BGEM J205934.25-174431.8 BlackGEM N
Related files
File Comments Last Modified (UT) Modified By
tns_2025lyx_atrep_256804_BlackGEM.pdf Finding Chart 2025-05-26 09:57:05 BlackGEM_Bot1
256700 2025-05-25 19:47:01 ALeRCE S. Jurado,F.E. Bauer,F. Forster et al. ALeRCE ZTF 20:59:34.263 -17:44:31.48 2025-05-25 11:01:44.999 19.7474 r-ZTF PSN SDSS J205934.25-174431.6 ZTF25aarzkbz ZTF Early SN candidate (r-rise > 0.20+-0.08 mag/day) classified using ALeRCE's stamp classifier (Carrasco-Davis et al. 2021) and the public ZTF stream. Discovery image and light curve in http://alerce.online/object/ZTF25aarzkbz 2025TNSTR1949....1J N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
21249 2025-06-06 23:07:51 Nadejda Blagorodnova Mujortova Nadejda Blagorodnova Mujortova BlackGEM Other 1 Add BlackGEM, CET-3PO Blue continuum without strong emission lines. The host looks extended in DESI Legacy DR10 data. 2025TNSCR2126....1M
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
21249 2025-06-02 04:01:09 NOT / ALFOSC 1200 Gerard Garcia-Moreno, Mathias Gort Gerard Garcia-Moreno BlackGEM tns_2025lyx_2460828.6674674884_NOT_ALFOSC_BlackGEM.txt tns_2025lyx_2460828.6674674884_NOT_ALFOSC_BlackGEM.fits Object

Comments

TNS
System

Mon, 06/02/2025 - 23:05

Object coordinates updated

Object coordinates updated according to AT-report 257662 of Group Pan-STARRS
Previous RA, DEC: 20:59:34.263, -17:44:31.48 (314.8927608, -17.7420788)
Updated RA, DEC: 20:59:34.251, -17:44:31.49 (314.89271051, -17.7420795047)