ASTROSAT CZTI

Data Quality Report

Orbit 14709

Creation date: 2024-06-27T16:58:45.235795
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/AS1G08_057T09_9000002174_14709cztM0_level2.evt modeM0/AS1G08_057T09_9000002174_14709cztM0_level2_quad_clean.evt
Size (bytes)468,250,56099,011,520
Size446.6 MB 94.4 MB
Events in quadrant A3,336,588638,976
Events in quadrant B3,349,459627,977
Events in quadrant C3,925,414627,013
Events in quadrant D3,099,114622,135

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144423
B0146692
C0161302
D0142222

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6927290.418652%
B6927340.490833%
C6927390.563014%
D692780.115490%

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 7518 6929 4 4 0.05% 0.06%
B 7518 6929 3 3 0.04% 0.04%
C 7518 6929 1 1 0.01% 0.01%
D 7518 6929 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 8 15 60098 351.82 826 809 168.5
A 9 143 36429 211.37 826 809 168.5
A 1 162 26417 151.96 826 809 168.5
B 0 85 51129 320.03 822 800 157.3
B 4 173 30867 191.19 822 800 157.3
B 12 111 18621 113.32 822 800 157.3
C 3 233 729493 3877.75 809 811 187.9
C 14 234 26318 135.74 809 811 187.9
C 13 61 5703 26.03 809 811 187.9
D 2 234 25910 117.8 804 786 213.3
D 13 172 10843 47.15 804 786 213.3
D 2 152 9903 42.75 804 786 213.3

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