ASTROSAT CZTI

Data Quality Report

Orbit 18329

Creation date: 2024-06-27T17:48:26.556706
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/AS1A06_006T01_9000002720_18329cztM0_level2.evt modeM0/AS1A06_006T01_9000002720_18329cztM0_level2_quad_clean.evt
Size (bytes)612,331,200100,670,400
Size584.0 MB 96.0 MB
Events in quadrant A3,810,932644,647
Events in quadrant B4,231,326643,915
Events in quadrant C3,861,152634,592
Events in quadrant D6,120,669591,429

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163092
B0174132
C0161962
D0230483

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76732473.219080%
B76732603.388505%
C76732553.323342%
D767294512.317518%

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 8388 7677 6 6 0.07% 0.08%
B 8388 7677 11 11 0.13% 0.14%
C 8388 7677 0 0 0.00% 0.00%
D 8387 7676 763 763 9.10% 9.94%

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 15 174 83390 416.94 969 947 197.7
A 0 226 8596 38.68 969 947 197.7
A 12 194 7205 31.65 969 947 197.7
B 7 220 332496 1777.72 962 937 186.5
B 0 189 31977 166.43 962 937 186.5
B 4 216 30488 158.44 962 937 186.5
C 14 238 139803 635.72 924 928 218.5
C 3 233 105381 478.15 924 928 218.5
C 0 207 7563 30.37 924 928 218.5
D 13 168 1942188 8524.22 924 896 227.7
D 1 52 392952 1721.52 924 896 227.7
D 7 238 127580 556.27 924 896 227.7

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