ASTROSAT CZTI

Data Quality Report

Orbit 46190

Creation date: 2024-06-27T23:20:11.592164
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/AS1A13_093T40_9000006182_46190cztM0_level2.fits modeM0/AS1A13_093T40_9000006182_46190cztM0_level2_quad_clean.evt
Size (bytes)554,270,400113,872,320
Size528.6 MB 108.6 MB
Events in quadrant A6,268,462770,541
Events in quadrant B4,368,674788,120
Events in quadrant C3,281,089746,483
Events in quadrant D6,038,967639,594

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232170
B0177690
C0151360
D0229370

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72241411.951827%
B72241532.117940%
C7225470.650519%
D72256328.747405%

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 7224 7224 47 47 0.65% 0.65%
B 7224 7224 46 46 0.64% 0.64%
C 7225 7225 25 25 0.35% 0.35%
D 7225 7225 600 600 8.30% 8.30%

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 2932660 17870.25 791 773 164.1
A 9 191 165288 1002.74 791 773 164.1
A 0 247 56057 336.96 791 773 164.1
B 3 112 717063 4608.04 789 763 155.4
B 4 171 225411 1445.19 789 763 155.4
B 5 172 183158 1173.37 789 763 155.4
C 12 2 113693 616.69 779 782 183.1
C 11 16 42725 229.08 779 782 183.1
C 14 254 39729 212.72 779 782 183.1
D 8 128 1503748 7965.58 759 735 188.7
D 1 52 635945 3366.45 759 735 188.7
D 2 37 401158 2122.14 759 735 188.7

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