ASTROSAT CZTI

Data Quality Report

Orbit 17398

Creation date: 2024-06-27T17:36:00.754216
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_030T01_9000002574_17398cztM0_level2.evt modeM0/AS1T03_030T01_9000002574_17398cztM0_level2_quad_clean.evt
Size (bytes)531,048,960114,926,400
Size506.4 MB 109.6 MB
Events in quadrant A3,343,092795,296
Events in quadrant B3,426,774797,654
Events in quadrant C3,468,504734,338
Events in quadrant D5,420,950717,541

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138393
B0140692
C0139512
D0203152

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62511241.983683%
B62511251.999680%
C62511282.047672%
D62513725.951048%

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 7571 6252 0 0 0.00% 0.00%
B 7571 6252 4 4 0.05% 0.06%
C 7571 6252 0 0 0.00% 0.00%
D 7571 6252 296 296 3.91% 4.73%

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 0 226 7929 41.36 869 853 171.1
A 12 194 6467 32.82 869 853 171.1
A 3 137 5757 28.67 869 853 171.1
B 7 220 24141 145.28 855 834 160.4
B 0 230 18449 109.8 855 834 160.4
B 12 111 17691 105.07 855 834 160.4
C 3 233 151443 818.39 803 812 184.1
C 14 238 129463 698.97 803 812 184.1
C 5 218 54456 291.45 803 812 184.1
D 11 176 1031302 5179.32 823 802 199.0
D 1 52 684582 3436.7 823 802 199.0
D 13 232 434033 2177.43 823 802 199.0

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