ASTROSAT CZTI

Data Quality Report

Orbit 13654

Creation date: 2024-06-27T16:44:08.038392
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_075T01_9000002024_13654cztM0_level2.evt modeM0/AS1G08_075T01_9000002024_13654cztM0_level2_quad_clean.evt
Size (bytes)545,247,36083,131,200
Size520.0 MB 79.3 MB
Events in quadrant A3,606,350492,778
Events in quadrant B4,278,628489,819
Events in quadrant C3,700,009522,245
Events in quadrant D4,428,682500,169

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154722
B0173851
C0152351
D0177991

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73521622.203482%
B73524275.807943%
C73521221.659412%
D73521712.325898%

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 7503 7354 20 20 0.27% 0.27%
B 7503 7354 120 120 1.60% 1.63%
C 7503 7354 0 0 0.00% 0.00%
D 7503 7354 42 42 0.56% 0.57%

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 12 96 118810 640.76 898 878 184.0
A 1 162 13854 70.5 898 878 184.0
A 15 69 11886 59.81 898 878 184.0
B 0 219 578713 3408.78 885 864 169.5
B 0 189 115153 674.2 885 864 169.5
B 0 214 24688 140.54 885 864 169.5
C 3 233 242123 1175.46 881 886 205.2
C 8 128 9637 42.64 881 886 205.2
C 13 61 6487 27.29 881 886 205.2
D 8 195 508188 2379.22 882 858 213.2
D 5 222 356712 1668.85 882 858 213.2
D 10 157 100178 465.78 882 858 213.2

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