ASTROSAT CZTI

Data Quality Report

Orbit 23295

Creation date: 2024-06-27T18:52:28.626856
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/AS1C05_012T03_9000003442_23295cztM0_level2.evt modeM0/AS1C05_012T03_9000003442_23295cztM0_level2_quad_clean.evt
Size (bytes)605,666,880144,057,600
Size577.6 MB 137.4 MB
Events in quadrant A3,550,898980,005
Events in quadrant B3,632,227990,957
Events in quadrant C3,972,740953,013
Events in quadrant D6,658,888897,529

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01603930
B01613329
C01712824
D02519873

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7786310.398151%
B7787640.821883%
C77901371.758665%
D77866528.374005%

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 8614 7790 0 0 0.00% 0.00%
B 8615 7791 1 1 0.01% 0.01%
C 8615 7793 8 8 0.09% 0.10%
D 8614 7788 521 521 6.05% 6.69%

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 13 254 12020 60.04 920 898 185.2
A 3 137 8397 40.48 920 898 185.2
A 0 226 7974 38.2 920 898 185.2
B 0 229 26827 147.63 918 892 175.7
B 12 111 21745 118.7 918 892 175.7
B 11 111 19093 103.61 918 892 175.7
C 10 9 224096 1078.0 892 897 207.0
C 14 238 140360 673.58 892 897 207.0
C 7 247 96309 460.82 892 897 207.0
D 1 52 3139840 15096.91 867 840 207.9
D 7 238 102149 487.24 867 840 207.9
D 2 136 65484 310.9 867 840 207.9

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