ASTROSAT CZTI

Data Quality Report

Orbit 22310

Creation date: 2024-06-27T18:39:21.676832
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_047T09_9000003300_22310cztM0_level2.evt modeM0/AS1A07_047T09_9000003300_22310cztM0_level2_quad_clean.evt
Size (bytes)484,387,200108,956,160
Size461.9 MB 103.9 MB
Events in quadrant A3,386,413708,972
Events in quadrant B3,470,741722,291
Events in quadrant C3,405,517690,502
Events in quadrant D3,914,283673,500

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149671
B0150641
C0149331
D0166321

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72492112.910746%
B72502313.186207%
C72502283.144828%
D72502042.813793%

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 7314 7250 1 1 0.01% 0.01%
B 7315 7251 1 1 0.01% 0.01%
C 7315 7251 0 0 0.00% 0.00%
D 7315 7251 64 64 0.87% 0.88%

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 4 2 20230 110.41 872 851 175.5
A 13 254 8554 43.89 872 851 175.5
A 3 137 7509 37.93 872 851 175.5
B 0 190 34788 205.03 869 846 165.5
B 12 111 20134 116.51 869 846 165.5
B 11 111 18022 103.75 869 846 165.5
C 14 238 132515 673.6 837 841 195.5
C 13 61 5867 25.71 837 841 195.5
C 8 128 4782 20.16 837 841 195.5
D 1 52 273469 1324.43 851 825 205.9
D 14 34 247148 1196.57 851 825 205.9
D 13 172 64266 308.18 851 825 205.9

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