ASTROSAT CZTI

Data Quality Report

Orbit 22116

Creation date: 2024-06-27T18:37:00.825564
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/AS1A07_007T04_9000003272_22116cztM0_level2.evt modeM0/AS1A07_007T04_9000003272_22116cztM0_level2_quad_clean.evt
Size (bytes)517,556,16068,382,720
Size493.6 MB 65.2 MB
Events in quadrant A3,409,244421,597
Events in quadrant B3,564,774425,515
Events in quadrant C3,431,345397,663
Events in quadrant D4,836,022380,203

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138892
B0143893
C0139342
D0187092

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6385420.657792%
B6384861.347118%
C6384881.378446%
D63842604.072682%

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 7690 6386 0 0 0.00% 0.00%
B 7689 6385 18 18 0.23% 0.28%
C 7689 6385 6 6 0.08% 0.09%
D 7689 6385 226 226 2.94% 3.54%

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 13 254 11160 59.36 883 870 173.3
A 0 226 7654 39.14 883 870 173.3
A 3 137 6975 35.22 883 870 173.3
B 3 64 113488 697.95 873 856 161.4
B 0 230 35278 213.3 873 856 161.4
B 12 111 19187 113.59 873 856 161.4
C 14 238 133194 698.87 827 835 189.4
C 10 22 38773 200.32 827 835 189.4
C 5 4 34332 176.87 827 835 189.4
D 1 52 1139604 5719.21 826 803 199.1
D 11 176 317012 1588.04 826 803 199.1
D 2 136 103810 517.32 826 803 199.1

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