ASTROSAT CZTI

Data Quality Report

Orbit 22090

Creation date: 2024-06-27T18:36:35.021272
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/AS1T03_146T01_9000003272_22090cztM0_level2.evt modeM0/AS1T03_146T01_9000003272_22090cztM0_level2_quad_clean.evt
Size (bytes)537,200,640100,272,960
Size512.3 MB 95.6 MB
Events in quadrant A3,299,194671,040
Events in quadrant B3,438,879676,023
Events in quadrant C3,325,901629,096
Events in quadrant D5,762,422604,789

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
A0137241
B0142091
C0138791
D0218882

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6537971.483861%
B65381131.728357%
C65381071.636586%
D65372744.191525%

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 7622 6538 0 0 0.00% 0.00%
B 7623 6539 4 4 0.05% 0.06%
C 7623 6539 4 4 0.05% 0.06%
D 7622 6538 113 113 1.48% 1.73%

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 13 254 11204 60.39 854 838 171.7
A 0 226 7389 38.16 854 838 171.7
A 3 137 6686 34.07 854 838 171.7
B 3 64 46990 287.5 846 828 160.6
B 0 228 26045 157.05 846 828 160.6
B 0 197 24821 149.43 846 828 160.6
C 14 238 125709 665.59 801 807 187.7
C 10 22 68496 360.71 801 807 187.7
C 5 112 6212 28.8 801 807 187.7
D 1 52 2228829 11179.29 815 793 199.3
D 7 238 159360 795.62 815 793 199.3
D 2 16 152964 763.53 815 793 199.3

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