ASTROSAT CZTI

Data Quality Report

Orbit 32101

Creation date: 2024-06-27T20:36:29.564280
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/AS1T04_051T01_9000004686_32101cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32101cztM0_level2_quad_clean.evt
Size (bytes)617,379,84086,993,280
Size588.8 MB 83.0 MB
Events in quadrant A3,005,937572,470
Events in quadrant B7,380,102536,272
Events in quadrant C3,253,538552,102
Events in quadrant D4,631,126532,754

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128871
B0264001
C0135491
D0182761

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6305130.206186%
B6306102616.270219%
C6306961.522360%
D6306620.983191%

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 7360 6306 0 0 0.00% 0.00%
B 7360 6306 771 771 10.48% 12.23%
C 7361 6307 23 23 0.31% 0.36%
D 7361 6307 56 56 0.76% 0.89%

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 6 14836 91.21 774 761 154.3
A 13 254 12808 78.07 774 761 154.3
A 3 137 7543 43.95 774 761 154.3
B 10 245 2512983 17864.42 741 722 140.6
B 6 159 1738240 12355.31 741 722 140.6
B 5 172 68180 479.69 741 722 140.6
C 0 10 202514 1167.72 737 741 172.8
C 14 238 129930 747.66 737 741 172.8
C 4 175 17308 95.88 737 741 172.8
D 8 195 1556972 8777.66 737 717 177.3
D 12 233 96402 539.69 737 717 177.3
D 12 218 80959 452.58 737 717 177.3

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