ASTROSAT CZTI

Data Quality Report

Orbit 29524

Creation date: 2024-06-27T20:05:02.120486
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/AS1A10_073T07_9000004254_29524cztM0_level2.evt modeM0/AS1A10_073T07_9000004254_29524cztM0_level2_quad_clean.evt
Size (bytes)766,978,56086,451,840
Size731.4 MB 82.4 MB
Events in quadrant A3,324,842551,532
Events in quadrant B3,384,530565,261
Events in quadrant C3,492,412547,719
Events in quadrant D12,567,690479,787

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142082
B0143592
C0144842
D0420392

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6789761.119458%
B6790981.443299%
C67902043.004418%
D6790258638.085420%

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 8599 6791 0 0 0.00% 0.00%
B 8600 6792 1 1 0.01% 0.01%
C 8600 6792 0 0 0.00% 0.00%
D 8600 6791 2952 2952 34.33% 43.47%

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 13391 71.87 859 841 174.6
A 3 137 8922 46.28 859 841 174.6
A 0 226 7413 37.63 859 841 174.6
B 12 111 20411 116.84 854 830 167.6
B 0 190 18627 106.2 854 830 167.6
B 11 111 18345 104.52 854 830 167.6
C 14 238 168677 864.77 825 831 194.1
C 14 254 50736 257.12 825 831 194.1
C 3 233 38039 191.7 825 831 194.1
D 8 195 9324944 50485.01 772 752 184.7
D 7 223 221036 1192.71 772 752 184.7
D 2 250 27931 147.16 772 752 184.7

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