ASTROSAT CZTI

Data Quality Report

Orbit 26201

Creation date: 2024-06-27T19:26:02.362813
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/AS1C05_007T01_9000003786_26201cztM0_level2.evt modeM0/AS1C05_007T01_9000003786_26201cztM0_level2_quad_clean.evt
Size (bytes)527,950,08091,131,840
Size503.5 MB 86.9 MB
Events in quadrant A3,716,959596,396
Events in quadrant B3,540,540600,165
Events in quadrant C3,561,723562,576
Events in quadrant D4,733,077551,384

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148100
B0142310
C0143230
D0184640

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64421822.825210%
B64421502.328469%
C64422033.151195%
D64422694.175722%

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 7627 6443 25 25 0.33% 0.39%
B 7627 6443 0 0 0.00% 0.00%
C 7627 6443 0 0 0.00% 0.00%
D 7627 6443 158 158 2.07% 2.45%

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 0 13 212908 1176.42 909 894 180.2
A 13 254 9557 48.07 909 894 180.2
A 3 137 7892 38.83 909 894 180.2
B 0 190 38324 221.25 896 876 169.3
B 12 111 20050 113.28 896 876 169.3
B 11 111 18149 102.05 896 876 169.3
C 14 238 140913 700.52 860 865 199.9
C 3 233 63874 315.17 860 865 199.9
C 13 61 5981 25.59 860 865 199.9
D 1 52 1122984 5432.3 868 849 206.6
D 12 233 303698 1466.11 868 849 206.6
D 2 234 22258 103.64 868 849 206.6

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