ASTROSAT CZTI

Data Quality Report

Orbit 07321

Creation date: 2024-06-27T15:18:25.559173
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/AS1A02_178T01_9000001006_07321cztM0_level2.evt modeM0/AS1A02_178T01_9000001006_07321cztM0_level2_quad_clean.evt
Size (bytes)448,934,40079,004,160
Size428.1 MB 75.3 MB
Events in quadrant A3,427,918486,538
Events in quadrant B3,418,272494,236
Events in quadrant C3,123,589486,075
Events in quadrant D3,179,409467,157

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145943
B0145892
C0138072
D0141342

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65701201.826484%
B65701041.582953%
C6570580.882801%
D6570841.278539%

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 8765 6570 7 7 0.08% 0.11%
B 8765 6570 3 3 0.03% 0.05%
C 8765 6571 1 1 0.01% 0.02%
D 8765 6570 17 17 0.19% 0.26%

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 8 15 261793 1580.47 811 795 165.1
A 14 111 23474 137.33 811 795 165.1
A 15 239 10611 59.44 811 795 165.1
B 11 51 152405 982.98 818 799 154.2
B 0 214 43769 278.61 818 799 154.2
B 4 81 31663 200.11 818 799 154.2
C 9 68 56373 308.12 784 787 180.4
C 1 16 7425 36.79 784 787 180.4
C 13 61 6046 29.15 784 787 180.4
D 14 34 95536 497.79 784 760 190.4
D 2 14 56592 293.25 784 760 190.4
D 0 11 19509 98.48 784 760 190.4

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