ASTROSAT CZTI

Data Quality Report

Orbit 15029

Creation date: 2024-06-27T17:02:45.554417
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/AS1T02_057T01_9000002212_15029cztM0_level2.evt modeM0/AS1T02_057T01_9000002212_15029cztM0_level2_quad_clean.evt
Size (bytes)519,471,36088,908,480
Size495.4 MB 84.8 MB
Events in quadrant A3,921,255546,724
Events in quadrant B3,697,011553,295
Events in quadrant C3,931,823538,053
Events in quadrant D3,665,398525,021

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165512
B0159421
C0161001
D0163771

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76061922.524323%
B76061572.064160%
C76061371.801210%
D76061321.735472%

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 7847 7611 15 15 0.19% 0.20%
B 7847 7610 2 2 0.03% 0.03%
C 7847 7610 0 0 0.00% 0.00%
D 7847 7611 16 16 0.20% 0.21%

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 134523 728.43 900 878 183.5
A 12 189 71557 385.23 900 878 183.5
A 1 178 68472 368.42 900 878 183.5
B 0 229 36651 206.18 899 874 173.5
B 4 173 33440 187.68 899 874 173.5
B 10 245 30595 171.28 899 874 173.5
C 3 233 544923 2737.17 863 864 198.8
C 3 232 9967 45.8 863 864 198.8
C 3 234 7932 35.56 863 864 198.8
D 12 235 187806 890.18 868 842 210.0
D 2 120 51039 239.0 868 842 210.0
D 2 136 38683 180.17 868 842 210.0

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