ASTROSAT CZTI

Data Quality Report

Orbit 05084

Creation date: 2024-06-27T14:51:05.210210
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/AS1G05_103T01_9000000642_05084cztM0_level2.evt modeM0/AS1G05_103T01_9000000642_05084cztM0_level2_quad_clean.evt
Size (bytes)671,466,24088,712,640
Size640.4 MB 84.6 MB
Events in quadrant A3,659,946566,655
Events in quadrant B3,828,103572,846
Events in quadrant C3,557,574560,612
Events in quadrant D8,770,119452,517

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162083
B0164182
C0160512
D0313112

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76692513.272917%
B76692373.090364%
C76691632.125440%
D7669208127.135220%

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 7819 7671 2 2 0.03% 0.03%
B 7819 7671 4 4 0.05% 0.05%
C 7819 7671 0 0 0.00% 0.00%
D 7819 7671 1609 1609 20.58% 20.98%

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 0 247 27368 138.31 931 909 191.3
A 0 50 20535 102.59 931 909 191.3
A 13 251 17679 87.66 931 909 191.3
B 15 204 88818 479.42 937 915 183.4
B 0 219 49355 264.19 937 915 183.4
B 15 54 23307 122.12 937 915 183.4
C 1 16 7582 31.39 907 913 212.4
C 13 61 7498 31.0 907 913 212.4
C 14 67 3819 13.68 907 913 212.4
D 12 22 2518241 12549.69 812 787 200.6
D 13 235 2166468 10796.08 812 787 200.6
D 13 239 385602 1918.33 812 787 200.6

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