ASTROSAT CZTI

Data Quality Report

Orbit 30306

Creation date: 2024-06-27T20:13:29.218153
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/AS1A10_071T20_9000004354_30306cztM0_level2.evt modeM0/AS1A10_071T20_9000004354_30306cztM0_level2_quad_clean.evt
Size (bytes)508,936,320101,223,360
Size485.4 MB 96.5 MB
Events in quadrant A3,236,324665,803
Events in quadrant B4,940,679665,050
Events in quadrant C3,370,203642,992
Events in quadrant D3,423,169636,292

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139202
B0197322
C0141712
D0145122

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6534791.209060%
B65341091.668197%
C65341201.836547%
D6534620.948883%

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 7539 6534 0 0 0.00% 0.00%
B 7539 6534 0 0 0.00% 0.00%
C 7539 6534 0 0 0.00% 0.00%
D 7539 6534 20 20 0.27% 0.31%

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 8 192 24986 144.69 832 816 167.0
A 13 254 11968 66.76 832 816 167.0
A 3 137 8519 46.11 832 816 167.0
B 6 159 1711905 10867.94 816 793 157.4
B 12 111 19888 121.28 816 793 157.4
B 11 111 18266 110.98 816 793 157.4
C 14 238 127503 674.32 798 801 187.9
C 3 233 108057 570.83 798 801 187.9
C 2 114 15361 77.49 798 801 187.9
D 8 195 119164 574.42 805 790 206.1
D 2 250 69637 334.09 805 790 206.1
D 1 52 61728 295.71 805 790 206.1

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