ASTROSAT CZTI

Data Quality Report

Orbit 12264

Creation date: 2024-06-27T16:24:41.779117
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/AS1G08_064T01_9000001814_12264cztM0_level2.evt modeM0/AS1G08_064T01_9000001814_12264cztM0_level2_quad_clean.evt
Size (bytes)618,042,24080,654,400
Size589.4 MB 76.9 MB
Events in quadrant A5,415,403494,972
Events in quadrant B5,300,822481,041
Events in quadrant C3,330,455499,991
Events in quadrant D4,197,022478,835

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210482
B0204191
C0146071
D0172781

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70043334.754426%
B700481311.607653%
C7004620.885208%
D70042012.869789%

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 7230 7006 80 80 1.11% 1.14%
B 7230 7006 432 432 5.98% 6.17%
C 7230 7006 1 1 0.01% 0.01%
D 7230 7006 125 125 1.73% 1.78%

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 13 251 1353689 8059.75 819 801 167.9
A 5 16 197420 1171.35 819 801 167.9
A 1 162 161348 956.45 819 801 167.9
B 4 239 1926052 12891.77 779 762 149.3
B 4 206 121859 810.87 779 762 149.3
B 11 51 85558 567.8 779 762 149.3
C 3 233 103618 555.99 805 808 184.9
C 15 208 51313 273.13 805 808 184.9
C 4 175 21601 112.45 805 808 184.9
D 1 52 451280 2312.99 803 777 194.8
D 10 199 183213 936.67 803 777 194.8
D 10 157 166236 849.5 803 777 194.8

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