ASTROSAT CZTI

Data Quality Report

Orbit 22713

Creation date: 2024-06-27T18:44:44.461814
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/AS1A08_007T01_9000003362_22713cztM0_level2.evt modeM0/AS1A08_007T01_9000003362_22713cztM0_level2_quad_clean.evt
Size (bytes)520,652,16079,220,160
Size496.5 MB 75.6 MB
Events in quadrant A3,428,835493,034
Events in quadrant B3,523,449495,902
Events in quadrant C3,408,746470,689
Events in quadrant D4,942,898462,566

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143672
B0145093
C0143112
D0192352

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68421121.636948%
B68411171.710276%
C68411311.914925%
D68413164.619208%

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 7787 6843 2 2 0.03% 0.03%
B 7786 6842 4 4 0.05% 0.06%
C 7786 6842 1 1 0.01% 0.01%
D 7786 6842 188 188 2.41% 2.75%

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 13 170 14421 76.75 883 863 176.7
A 13 254 12930 68.31 883 863 176.7
A 0 226 7877 39.7 883 863 176.7
B 0 245 37083 222.43 874 855 162.9
B 0 228 28766 171.37 874 855 162.9
B 12 111 18192 106.45 874 855 162.9
C 14 238 132816 685.91 836 843 192.4
C 10 23 9180 43.33 836 843 192.4
C 10 22 7514 34.67 836 843 192.4
D 12 233 567872 2786.33 847 822 203.5
D 7 223 533314 2616.52 847 822 203.5
D 1 52 373770 1832.57 847 822 203.5

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