ASTROSAT CZTI

Data Quality Report

Orbit 29201

Creation date: 2024-06-27T20:01:26.267557
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/AS1A10_053T34_9000004192_29201cztM0_level2.evt modeM0/AS1A10_053T34_9000004192_29201cztM0_level2_quad_clean.evt
Size (bytes)773,202,24089,890,560
Size737.4 MB 85.7 MB
Events in quadrant A3,631,808573,444
Events in quadrant B4,034,931572,721
Events in quadrant C7,923,997538,811
Events in quadrant D7,309,752504,729

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157151
B0168331
C0288823
D0270001

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7644530.693354%
B76451091.425768%
C76446658.699634%
D764480510.531136%

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 7874 7646 0 0 0.00% 0.00%
B 7875 7647 5 5 0.06% 0.07%
C 7874 7646 269 269 3.42% 3.52%
D 7874 7646 707 707 8.98% 9.25%

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 15 169 15877 79.06 936 917 189.2
A 13 254 15870 79.02 936 917 189.2
A 3 137 9137 43.44 936 917 189.2
B 0 183 172004 945.19 932 906 181.0
B 0 229 106786 584.91 932 906 181.0
B 10 245 48143 260.95 932 906 181.0
C 3 233 4304326 20647.99 884 891 208.4
C 14 238 139624 665.64 884 891 208.4
C 2 114 18383 83.93 884 891 208.4
D 1 52 2628038 12398.14 868 843 211.9
D 8 195 851599 4014.85 868 843 211.9
D 12 233 264369 1243.62 868 843 211.9

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