ASTROSAT CZTI

Data Quality Report

Orbit 13594

Creation date: 2024-06-27T16:43:11.217958
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/AS1A04_193T01_9000002004_13594cztM0_level2.evt modeM0/AS1A04_193T01_9000002004_13594cztM0_level2_quad_clean.evt
Size (bytes)504,665,280117,544,320
Size481.3 MB 112.1 MB
Events in quadrant A2,879,858795,317
Events in quadrant B3,122,229796,133
Events in quadrant C2,946,164790,367
Events in quadrant D5,909,468739,685

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128342
B0133931
C0129361
D0218571

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6281550.875657%
B62811071.703550%
C6281380.604999%
D62813134.983283%

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 6932 6283 1 1 0.01% 0.02%
B 6932 6283 35 35 0.50% 0.56%
C 6932 6283 0 0 0.00% 0.00%
D 6932 6283 147 147 2.12% 2.34%

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 2 250 19495 126.42 731 713 148.6
A 1 162 18306 118.42 731 713 148.6
A 15 69 15634 100.43 731 713 148.6
B 0 182 106321 773.02 726 708 136.6
B 0 85 50767 366.4 726 708 136.6
B 3 64 41845 301.1 726 708 136.6
C 3 233 169557 1046.74 704 707 161.3
C 0 207 19268 115.06 704 707 161.3
C 8 229 6609 36.58 704 707 161.3
D 13 122 2272767 13484.26 699 679 168.5
D 5 222 474059 2809.39 699 679 168.5
D 1 20 168933 998.54 699 679 168.5

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