ASTROSAT CZTI

Data Quality Report

Orbit 06547

Creation date: 2024-06-27T15:08:36.070915
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/AS1G06_091T01_9000000880_06547cztM0_level2.evt modeM0/AS1G06_091T01_9000000880_06547cztM0_level2_quad_clean.evt
Size (bytes)509,889,600105,284,160
Size486.3 MB 100.4 MB
Events in quadrant A4,024,396675,590
Events in quadrant B3,776,191688,587
Events in quadrant C3,137,438689,551
Events in quadrant D4,031,708650,094

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01669291
B01599757
C01446247
D016923100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69433454.969034%
B69504646.676259%
C69492603.741546%
D69414286.166258%

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 6973 6972 5 5 0.07% 0.07%
B 6973 6972 84 84 1.20% 1.20%
C 6973 6973 0 0 0.00% 0.00%
D 6973 6972 114 114 1.63% 1.64%

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 15 236 636339 3818.13 804 784 166.5
A 8 15 244039 1461.37 804 784 166.5
A 9 1 18179 104.5 804 784 166.5
B 10 245 182325 1158.01 810 786 156.8
B 4 48 157212 997.82 810 786 156.8
B 0 214 86295 545.45 810 786 156.8
C 8 128 12670 64.37 797 798 184.4
C 8 112 7792 37.92 797 798 184.4
C 13 61 6283 29.74 797 798 184.4
D 2 33 477902 2455.72 789 761 194.3
D 2 152 159862 818.85 789 761 194.3
D 2 63 126629 647.81 789 761 194.3

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