ASTROSAT CZTI

Data Quality Report

Orbit 44207

Creation date: 2024-06-27T23:00:31.373385
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A13_074T09_9000005968_44207cztM0_level2.fits modeM0/AS1A13_074T09_9000005968_44207cztM0_level2_quad_clean.evt
Size (bytes)1,373,901,120253,045,440
Size1.3 GB 241.3 MB
Events in quadrant A16,076,3481,619,793
Events in quadrant B11,877,6691,679,871
Events in quadrant C8,139,1521,726,375
Events in quadrant D13,470,1141,479,420

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03380
B03380
C03380
D03380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0602841
B0466301
C0363241
D0518121

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1675516289.716503%
B1675512037.179946%
C167551881.122053%
D1675513768.212474%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 17190 16757 1016 1016 5.91% 6.06%
B 17190 16757 492 492 2.86% 2.94%
C 17190 16757 74 74 0.43% 0.44%
D 17190 16757 1008 1008 5.86% 6.02%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 15 223 5664088 14938.81 1807 1762 379.0
A 10 83 3303706 8711.46 1807 1762 379.0
A 10 248 57101 146.0 1807 1762 379.0
B 0 200 2127857 5893.75 1839 1783 360.7
B 0 219 700097 1935.82 1839 1783 360.7
B 5 235 462814 1278.04 1839 1783 360.7
C 14 254 436020 994.63 1843 1857 436.5
C 4 254 251672 572.3 1843 1857 436.5
C 15 158 119749 270.08 1843 1857 436.5
D 2 249 2672892 5805.37 1795 1737 460.1
D 1 52 977951 2121.66 1795 1737 460.1
D 12 233 879049 1906.71 1795 1737 460.1

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter