ASTROSAT CZTI

Data Quality Report

Orbit 03188

Creation date: 2024-06-27T14:25:42.468728
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/AS1G05_127T01_9000000436_03188cztM0_level2.evt modeM0/AS1G05_127T01_9000000436_03188cztM0_level2_quad_clean.evt
Size (bytes)752,860,80085,043,520
Size718.0 MB 81.1 MB
Events in quadrant A3,635,043527,555
Events in quadrant B3,939,248532,551
Events in quadrant C10,908,945465,111
Events in quadrant D3,790,970507,873

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161352
B0167461
C0378911
D0168251

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77822603.341043%
B77822523.238242%
C7782182523.451555%
D77822312.968389%

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 7912 7782 5 5 0.06% 0.06%
B 7912 7783 11 11 0.14% 0.14%
C 7912 7782 1486 1486 18.78% 19.10%
D 7912 7782 33 33 0.42% 0.42%

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 5 113 46236 236.34 928 907 191.8
A 0 226 10322 49.09 928 907 191.8
A 12 194 10117 48.02 928 907 191.8
B 4 80 132002 715.06 941 918 183.3
B 2 249 56472 303.05 941 918 183.3
B 4 200 26910 141.79 941 918 183.3
C 12 206 7475978 38601.76 831 834 193.6
C 1 192 63592 324.08 831 834 193.6
C 6 80 56301 286.43 831 834 193.6
D 13 223 128728 582.71 897 867 219.4
D 5 233 96317 435.0 897 867 219.4
D 13 120 72352 325.78 897 867 219.4

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