ASTROSAT CZTI

Data Quality Report

Orbit 13339

Creation date: 2024-06-27T16:39:18.287754
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/AS1A04_101T01_9000001984_13339cztM0_level2.evt modeM0/AS1A04_101T01_9000001984_13339cztM0_level2_quad_clean.evt
Size (bytes)453,389,76090,884,160
Size432.4 MB 86.7 MB
Events in quadrant A3,295,205569,537
Events in quadrant B3,414,494587,555
Events in quadrant C3,309,388574,656
Events in quadrant D3,248,704545,786

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142663
B0145143
C0143003
D0144183

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68121492.187317%
B68122103.082795%
C68121011.482678%
D6812851.247798%

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 6868 6816 1 1 0.01% 0.01%
B 6868 6816 5 5 0.07% 0.07%
C 6868 6816 0 0 0.00% 0.00%
D 6868 6816 0 0 0.00% 0.00%

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 1 162 17327 94.39 846 824 174.8
A 0 226 7680 39.21 846 824 174.8
A 12 96 7151 36.19 846 824 174.8
B 3 64 36119 212.43 851 827 166.1
B 3 209 22563 130.83 851 827 166.1
B 12 111 19499 112.39 851 827 166.1
C 3 233 63976 323.41 829 832 195.2
C 6 96 7463 33.96 829 832 195.2
C 13 61 5937 26.15 829 832 195.2
D 1 52 80221 392.23 824 797 202.5
D 2 234 26172 125.31 824 797 202.5
D 8 195 22848 108.9 824 797 202.5

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