RA/DEC (2000)
11:22:52.120 -06:13:18.84
170.7171647 -6.2219011
Type
---
Redshift
0.182
Discovery ReportClassification Report
Related AstroNotes: 2026-151, 2026-152, 2026-174
Reporting Group
ZTF
Discovering Data Source
ZTF
Discovery Date
2026-05-22 04:48:17.997
TNS AT
Y
Public
Y
Discovery Mag
18.3538
Filter
g-ZTF
Reporter/s
Jacob Wise (LJMU), Christoffer Fremling (Caltech), Daniel Perley (LJMU), Theophile du Laz (Caltech) on behalf of ZTF
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌AT_2026nik - 2026-05-25 05:23:17 P200 / NGPS (ZTF)z=
 ▌AT_2026nik - 2026-05-22 00:00:00 Gemini-S / GMOS-S (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-CHL_ATLAS-04_cyan
 ▌P48_ZTF-Cam_i
 ▌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
23841 2026-05-25 05:23:17 P200 / NGPS Kaustav Das, K-Ryan Hinds, Mansi Kasliwal Kaustav Das ZTF tns_2026nik_2026-05-25_05-23-16.800_P200_NGPS_ZTF.txt Object
23814 2026-05-22 00:00:00 Gemini-S / GMOS-S Gemini None tns_2026nik_2026-05-22_Gemini-S_GMOS-S_None.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
cyan-ATLAS ATLAS-CHL_ATLAS-04 2026-05-17 02:08:46 - 2026-05-20 01:10:06 2461177.58942 - 2461180.54868 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
584647 2026-05-20 01:10:06 2461180.54868 19.604 0.168 19.7 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot
584646 2026-05-17 02:08:46 2461177.58942 19.68 ABMag cyan-ATLAS ATLAS-CHL_ATLAS-04 30 Robot [Last non detection]
i-ZTF P48_ZTF-Cam 2026-05-20 04:06:49 - 2026-05-20 04:06:49 2461180.6714005 - 2461180.6714005 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
584573 2026-05-20 04:06:49 2461180.6714005 20.0596 ABMag i-ZTF P48_ZTF-Cam [Last non detection]
r-ZTF P48_ZTF-Cam 2026-05-22 05:59:46 - 2026-05-22 05:59:46 2461182.749838 - 2461182.749838 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
584575 2026-05-22 05:59:46 2461182.749838 18.7991 0.100062 ABMag r-ZTF P48_ZTF-Cam
g-ZTF P48_ZTF-Cam 2026-05-22 04:48:18 - 2026-05-22 04:48:18 2461182.7002083 - 2461182.7002083 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
584574 2026-05-22 04:48:18 2461182.7002083 18.3538 0.081488 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
304913 2026-05-22 15:57:37 ATLAS_Bot1 J. Tonry, L. Denneau, H. Weiland (IfA, University of Hawaii) et al. ATLAS ATLAS 11:22:52.133 -06:13:18.93 2026-05-20 01:10:05.952 19.604 cyan-ATLAS PSN ATLAS26gfi ATLAS N
304882 2026-05-22 11:41:12 Fritz Jacob Wise (LJMU), Christoffer Fremling (Caltech), Daniel Perley (LJMU) et al. ZTF ZTF 11:22:52.120 -06:13:18.84 2026-05-22 04:48:17.997 18.3538 g-ZTF PSN ZTF26aaxutnf ZTF 2026TNSTR2233....1W N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
23837 2026-05-26 11:24:32 Jacob Wise Jacob Wise (LJMU), Daniel Perley (LJMU), Rahul Jayaraman (Cornell), Kaustav Das (Caltech), K-Ryan Hinds (Caltech), Anna Ho (Cornell), Mansi Kasliwal (Caltech), Zoë McGrath (LJMU) ZTF Other 0.182 1 ZTF Spectrum is blue and featureless, with the tentative detection of interstellar Mg II doublet absorption at z = 0.182. Photometric and spectroscopic characteristics are so far consistent with previously observed LFBOTs, however we hold off on a definitive classification for now (see AstroNote 2026-152). 2026TNSCR2298....1W
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
23841 2026-05-25 05:23:17 P200 / NGPS Kaustav Das, K-Ryan Hinds, Mansi Kasliwal Kaustav Das ZTF tns_2026nik_2026-05-25_05-23-16.800_P200_NGPS_ZTF.txt Object
23810 2026-05-24 22:50:36 Priscila Pessi P. Pessi (NCBJ), A. Cikota (NOIRLab/Gemini South), V. Firpo (NOIRLab/Gemini South), F. Gran (NOIRLab/Gemini South), L. Magill (NOIRLab/Gemini South), K. Silva (NOIRLab/Gemini South), P. Candia (NOIRLab/Gemini South), R. Ruiz-Carmona (NOIRLab/Gemini South), S. Panda (NOIRLab/Gemini South), J. Font-Serra (NOIRLab/Gemini South), R. Angeloni (NOIRLab/Gemini South), V. Kalari (NOIRLab/Gemini South), C. Rodriguez (NOIRLab/Gemini South), J.-E. Heo (NOIRLab/Gemini South), E. Sabbi (NOIRLab), T. Ahumada (NOIRLab/ SOAR), R. Cartier (University of Antofagasta), S. Cikota (CAHA) None Other 1 Blue featureless spectra. The transient seems associated to a faint galaxy with a reported photoZ ~ 0.5 (Legacy Survey DR9, https://www.legacysurvey.org/viewer, Zhou et al. 2021). 2026TNSCR2264....1P
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
23814 2026-05-22 00:00:00 Gemini-S / GMOS-S Gemini None tns_2026nik_2026-05-22_Gemini-S_GMOS-S_None.txt Object

Comments