ASTROSAT CZTI

Data Quality Report

Orbit 36005

Creation date: 2022-08-09T17:56:55.183139
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_069T01_9000005158_36005cztM0_level2.evt modeM0/AS1T04_069T01_9000005158_36005cztM0_level2_quad_clean.evt
Size (bytes)506,597,76085,106,880
Size483.1 MB 81.2 MB
Events in quadrant A2,868,269561,433
Events in quadrant B3,945,444541,877
Events in quadrant C3,472,011541,463
Events in quadrant D4,655,395518,879

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121993
B0155032
C0139064
D0176742

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5918120.202771%
B59183065.170666%
C59171332.247761%
D59182233.768165%

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 8872 5920 0 0 0.00% 0.00%
B 8872 5920 218 218 2.46% 3.68%
C 8872 5920 96 96 1.08% 1.62%
D 8872 5920 267 267 3.01% 4.51%

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 181434 1269.5 693 679 142.4
A 13 254 10790 71.01 693 679 142.4
A 3 137 7314 46.6 693 679 142.4
B 5 172 976850 7472.96 672 654 130.6
B 0 190 105673 803.94 672 654 130.6
B 5 255 74044 561.81 672 654 130.6
C 9 187 484487 3125.32 659 663 154.8
C 15 214 246112 1585.51 659 663 154.8
C 0 207 63941 408.75 659 663 154.8
D 12 235 1070084 6633.11 660 641 161.2
D 12 17 227010 1404.03 660 641 161.2
D 13 249 197281 1219.64 660 641 161.2

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