ASTROSAT CZTI

Data Quality Report

Orbit 32803

Creation date: 2024-06-27T20:42:12.604671
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/AS1T04_064T01_9000004730_32803cztM0_level2.evt modeM0/AS1T04_064T01_9000004730_32803cztM0_level2_quad_clean.evt
Size (bytes)532,019,52087,324,480
Size507.4 MB 83.3 MB
Events in quadrant A2,807,571593,914
Events in quadrant B3,761,504581,960
Events in quadrant C2,973,297594,594
Events in quadrant D6,231,282522,728

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0112383
B0143412
C0118672
D0220002

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4998390.780312%
B49983366.722689%
C4998881.760704%
D499861912.384954%

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 7032 4999 13 13 0.18% 0.26%
B 7032 4999 213 213 3.03% 4.26%
C 7032 4999 54 54 0.77% 1.08%
D 7032 4999 596 596 8.48% 11.92%

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 12 16 174231 1371.91 630 617 126.5
A 15 17 72066 564.59 630 617 126.5
A 9 143 39136 304.38 630 617 126.5
B 5 172 879692 7588.82 609 598 115.8
B 0 197 182102 1566.84 609 598 115.8
B 0 219 141728 1218.31 609 598 115.8
C 0 10 485380 3465.14 604 610 139.9
C 3 233 36894 259.36 604 610 139.9
C 3 110 25669 179.12 604 610 139.9
D 8 195 2204637 15525.44 584 572 142.0
D 2 250 540481 3803.12 584 572 142.0
D 12 233 454099 3194.65 584 572 142.0

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