ASTROSAT CZTI

Data Quality Report

Orbit 40088

Creation date: 2024-06-27T22:12:12.453070
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/AS1T05_086T01_9000005518_40088cztM0_level2.fits modeM0/AS1T05_086T01_9000005518_40088cztM0_level2_quad_clean.evt
Size (bytes)459,069,120100,229,760
Size437.8 MB 95.6 MB
Events in quadrant A2,989,907704,897
Events in quadrant B2,807,107721,256
Events in quadrant C5,969,643631,055
Events in quadrant D4,785,045580,031

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121263
B0119332
C0216772
D0181182

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5687100.175840%
B5687250.439599%
C568761410.796554%
D56874708.264463%

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 7150 5688 3 3 0.04% 0.05%
B 7150 5688 17 17 0.24% 0.30%
C 7150 5688 583 583 8.15% 10.25%
D 7150 5688 439 439 6.14% 7.72%

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 10 83 479003 3558.89 640 629 134.4
A 2 79 15521 110.79 640 629 134.4
A 13 6 14802 105.44 640 629 134.4
B 0 189 198410 1574.07 634 618 125.7
B 5 32 49354 387.85 634 618 125.7
B 0 230 25435 197.5 634 618 125.7
C 9 187 3064300 21509.59 601 608 142.4
C 15 214 228160 1597.6 601 608 142.4
C 3 233 146679 1025.54 601 608 142.4
D 2 249 976736 6577.64 594 578 148.4
D 12 0 611606 4117.29 594 578 148.4
D 12 227 423509 2849.84 594 578 148.4

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