ASTROSAT CZTI

Data Quality Report

Orbit 32360

Creation date: 2024-06-27T20:39:19.650165
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/AS1A09_131T01_9000004702_32360cztM0_level2.evt modeM0/AS1A09_131T01_9000004702_32360cztM0_level2_quad_clean.evt
Size (bytes)1,659,490,560336,251,520
Size1.5 GB 320.7 MB
Events in quadrant A8,479,0762,288,920
Events in quadrant B15,437,4642,273,212
Events in quadrant C10,669,1042,219,416
Events in quadrant D14,422,2652,123,784

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0376474
B0598613
C0437173
D0553953

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03740
B03740
C03740
D03740

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A185811410.758840%
B185816043.250632%
C185816803.659652%
D185817964.283946%

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 20326 18584 0 0 0.00% 0.00%
B 20326 18584 221 221 1.09% 1.19%
C 20326 18584 225 225 1.11% 1.21%
D 20326 18584 631 631 3.10% 3.40%

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 36688 78.79 2184 2139 438.5
A 13 6 32895 70.14 2184 2139 438.5
A 3 137 22179 45.7 2184 2139 438.5
B 6 159 5075916 12389.35 2152 2097 409.5
B 5 172 804219 1958.64 2152 2097 409.5
B 0 190 623194 1516.61 2152 2097 409.5
C 0 10 1664452 3422.81 2079 2084 485.7
C 14 238 373612 764.97 2079 2084 485.7
C 14 67 181154 368.7 2079 2084 485.7
D 8 195 2630048 5348.59 2077 2018 491.4
D 12 6 2249253 4573.59 2077 2018 491.4
D 12 218 386831 783.17 2077 2018 491.4

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