ASTROSAT CZTI

Data Quality Report

Orbit 03260

Creation date: 2024-06-27T14:26:50.782333
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/AS1G05_221T01_9000000442_03260cztM0_level2.evt modeM0/AS1G05_221T01_9000000442_03260cztM0_level2_quad_clean.evt
Size (bytes)573,649,92076,700,160
Size547.1 MB 73.1 MB
Events in quadrant A3,497,797456,846
Events in quadrant B4,038,996456,183
Events in quadrant C4,939,744447,511
Events in quadrant D4,388,669440,821

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157313
B0166362
C0199462
D0185422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74872653.539468%
B74872863.819955%
C74877149.536530%
D74874516.023775%

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 8707 7491 9 9 0.10% 0.12%
B 8707 7491 3 3 0.03% 0.04%
C 8707 7491 439 439 5.04% 5.86%
D 8707 7491 180 180 2.07% 2.40%

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 0 50 48725 263.6 873 850 181.6
A 3 1 35239 189.34 873 850 181.6
A 0 118 31175 166.97 873 850 181.6
B 15 204 564970 3271.47 888 864 172.4
B 2 249 15521 85.0 888 864 172.4
B 0 229 14756 80.57 888 864 172.4
C 1 192 1504145 7662.23 840 841 196.2
C 12 175 98589 498.21 840 841 196.2
C 1 16 21171 103.62 840 841 196.2
D 12 233 872303 4216.67 845 817 206.7
D 13 114 86749 415.78 845 817 206.7
D 4 160 83656 400.82 845 817 206.7

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