ASTROSAT CZTI

Data Quality Report

Orbit 16092

Creation date: 2024-06-27T17:17:51.509338
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/AS1T02_110T01_9000002376_16092cztM0_level2.evt modeM0/AS1T02_110T01_9000002376_16092cztM0_level2_quad_clean.evt
Size (bytes)491,768,64088,784,640
Size469.0 MB 84.7 MB
Events in quadrant A3,284,316582,490
Events in quadrant B3,651,672576,880
Events in quadrant C3,191,719550,510
Events in quadrant D4,321,289522,298

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139563
B0149032
C0136782
D0170652

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6546701.069355%
B65461011.542927%
C6546671.023526%
D65474516.888651%

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 7617 6547 19 19 0.25% 0.29%
B 7617 6547 37 37 0.49% 0.57%
C 7617 6547 0 0 0.00% 0.00%
D 7618 6548 380 380 4.99% 5.80%

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 9 143 98193 596.44 820 803 163.3
A 12 96 25603 151.88 820 803 163.3
A 0 226 7415 40.49 820 803 163.3
B 0 189 156397 1002.08 813 793 155.3
B 7 220 135626 868.32 813 793 155.3
B 0 245 38143 240.53 813 793 155.3
C 14 238 120820 665.67 772 777 180.3
C 3 233 45116 245.87 772 777 180.3
C 0 207 9319 47.37 772 777 180.3
D 7 38 771142 4107.81 771 750 187.5
D 12 218 320770 1706.38 771 750 187.5
D 1 52 91320 482.93 771 750 187.5

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