RA/DEC (2000)
01:33:21.998 +30:33:01.25
23.3416587 +30.5503474
Type
Nova
Redshift
0.0002
Discovery ReportClassification Report
Reporting Group
XOSS
Discovering Data Source
XOSS
Discovery Date
2021-01-03 16:30:20.000
TNS AT
Y
Public
Y
Host Name
M33
Discovery Mag
17.9
Filter
Clear-
Reporter/s
Mi Zhang, Xing Gao (Xingming Observatory)
NEDSIMBADDECaLSPanSTARRS-1SkyMapperVizieRWISEDSSADS

Spectra

 ▌AT_2021bl - 2021-01-07 02:25:54 P60 / SEDM (ZTF)z=
 ▌AT_2021bl - 2021-01-07 00:00:00 P60 / SEDM (None)z=
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   Binning factor: (rounded to nearest integer >1)
Mouse hovers at WL: 0 (rest),0 (observed)

Light curves

 ▌P48_ZTF-Cam_r
 ▌P48_ZTF-Cam_g
 ▌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
8963 2021-01-07 02:25:54 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2021bl_2021-01-07_02-25-53.756825_P60_SEDM_ZTF.ascii Object
8541 2021-01-07 00:00:00 P60 / SEDM - None tns_2021bl_2021-01-07_P60_SEDM.txt Object
Light Curves
Filter Tel / Inst Obs-date range JD Range Photometry
r-ZTF P48_ZTF-Cam 2021-01-04 04:20:38 - 2021-01-04 04:20:38 2459218.681 - 2459218.681 1
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
183832 2021-01-04 04:20:38 2459218.681 17.78 ABMag r-ZTF P48_ZTF-Cam 30 ZTF
g-ZTF P48_ZTF-Cam 2021-01-02 03:43:12 - 2021-01-04 04:50:53 2459216.655 - 2459218.702 2
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
183833 2021-01-04 04:50:53 2459218.702 18.29 ABMag g-ZTF P48_ZTF-Cam 30 ZTF
183831 2021-01-02 03:43:12 2459216.655 20.83 ABMag g-ZTF P48_ZTF-Cam 30 ZTF [Last non detection]
Clear- Other_Other 2020-12-31 13:09:58 - 2021-01-09 02:03:50 2459215.048588 - 2459223.586 10
Photometry
ID Obs-date JD Mag. / Flux Err Lim. Mag./Flux Units Filter Tel / Inst Exp-time Observer/s Remarks
196264 2021-01-09 02:03:50 2459223.586 20.1 0.25 20.3 VegaMag Clear- Other_Other 600 J. Bryan 40-cm f/10 Ritchey-Chretien telescope, cooled CMOS camera, approximate R-band magnitude
196263 2021-01-09 01:51:01 2459223.57709 20.1 0.25 20.3 VegaMag Clear- Other_Other 600 J. Bryan 40-cm f/10 Ritchey-Chretien telescope, cooled CMOS camera, approximate R-band magnitude
196262 2021-01-09 01:37:47 2459223.56791 20.1 0.25 20.3 VegaMag Clear- Other_Other 600 J.Bryan 40-cm f/10 Ritchey-Chretien telescope, cooled CMOS camera, approximate R-band magnitude
196261 2021-01-04 02:32:48 2459218.60611 17.4 0.25 21 VegaMag Clear- Other_Other 600 J. Bryan 40-cm f/10 Ritchey-Chretien telescope, cooled CMOS camera, approximate R-band magnitude
196260 2021-01-04 02:19:39 2459218.59698 17.3 0.25 21 VegaMag Clear- Other_Other 600 J. Bryan 40-cm f/10 Ritchey-Chretien telescope, cooled CMOS camera, approximate R-band magnitude
196259 2021-01-04 02:04:24 2459218.58639 17.2 0.25 21 VegaMag Clear- Other_Other 600 J. Bryan 40-cm f/10 Ritchey-Chretien telescope, cooled CMOS camera, approximate R-band magnitude
196258 2021-01-04 01:48:59 2459218.57568 17.2 0.25 21 VegaMag Clear- Other_Other 600 J. Bryan 40-cm f/10 Ritchey-Chretien telescope, cooled CMOS camera, approximate R-band magnitude
183328 2021-01-03 16:30:20 2459218.1877315 17.9 18.5 ABMag Clear- Other_Other 300 Xing Gao The transient was discovered on several 300-s survey images (limiting mag about 18.5) taken by Xing Gao using NEXT at Xingming Observatory #3 (N88). Images can be found at: http://xjltp.china-vo.org/xm48mz.html
196257 2021-01-03 03:05:02 2459217.6285 20.9 VegaMag Clear- Other_Other 600 J. Bryan [Last non detection] As observed from Georgetown, Texas with a 40-cm f/10 Ritchey-Chretien telescope and cooled CMOS camera. Approximate R-band magnitudes of the nova were derived with Astrometrica software and UCAC4. The estimated uncertainty is ± 0.25 mag.
183327 2020-12-31 13:09:58 2459215.048588 18.5 ABMag Clear- Other_Other 300 Xing Gao [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 ADS Bibcode Unreal Auto classification
101369 2021-03-06 02:46:47 James Bryan James Bryan 01:33:21.990 +30:33:01.20 2021-01-04 01:48:58.752 17.2 Clear- PNV M33 This reports an independent detection and additional photometry of PNV J01332200+3033012 (aka XM48MZ, AT2021bl), a recent nova in M33 originally announced by Mi Zhang and Xing Gao at the Xingming Observatory. N
95542 2021-01-05 15:59:26 ZTF_Bot1 C. Fremling (Caltech) on behalf of the Zwicky Transient Facility (ZTF) collaboration ZTF ZTF 01:33:21.998 +30:33:01.25 2021-01-04 04:20:38.400 17.78 r-ZTF PSN ZTF21aaarlbp ZTF N
95358 2021-01-03 17:08:37 Mi Zhang Mi Zhang, Xing Gao (Xingming Observatory) XOSS XOSS 01:33:22.000 +30:33:01.20 2021-01-03 16:30:20.000 17.9 Clear- PNV M33 XM48MZ XOSS Possible nova or variable star in M33. 2021TNSTR..22....1Z N
Classification Reports
ID Time received (UT) Sender Classifier/s Group Classification Redshift Spectra Related files Assoc. Groups End prop. period Remarks ADS Bibcode
8953 2021-02-17 04:12:48 ZTF_Bot1 A. Dahiwale, C. Fremling(Caltech) on behalf of the Zwicky Transient Facility (ZTF) ZTF Nova 0.0002 1 ZTF 2021TNSCR.502....1D
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
8963 2021-01-07 02:25:54 P60 / SEDM 2700 SEDmRobot auto ZTF tns_2021bl_2021-01-07_02-25-53.756825_P60_SEDM_ZTF.ascii Object
8529 2021-01-11 23:51:05 Viraj Karambelkar Viraj Karambelkar on behalf of the Zwicky Transient Facility (ZTF) collaboration None Nova -0.001 1 Nova in M31 2021TNSCR.110....1K
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
8541 2021-01-07 00:00:00 P60 / SEDM - None tns_2021bl_2021-01-07_P60_SEDM.txt Object

Comments

Viraj
Karambelkar

Mon, 01/11/2021 - 23:55

Typo in classification report : M33 instead of M31

This source is a nova in M33, not M31 as listed in the Remarks column of the classification report,

TNS
System

Tue, 01/05/2021 - 15:30

Object coordinates updated

Object coordinates updated according to AT-report 95542 of Group ZTF
Previous RA, DEC: 01:33:22.000, +30:33:01.20 (23.341667, +30.550333)
Updated RA, DEC: 01:33:21.998, +30:33:01.25 (23.3416587, 30.5503474)