ASTROSAT CZTI

Data Quality Report

Orbit 24848

Creation date: 2024-06-27T19:10:34.780426
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/AS1A08_003T04_9000003634_24848cztM0_level2.evt modeM0/AS1A08_003T04_9000003634_24848cztM0_level2_quad_clean.evt
Size (bytes)72,118,08019,967,040
Size68.8 MB 19.0 MB
Events in quadrant A560,665133,029
Events in quadrant B495,653137,736
Events in quadrant C565,613129,780
Events in quadrant D492,232127,783

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022511
B020371
C022681
D020691

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A114043926413607246
B1-1-1
C1-1-1
D1-1-1

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A979323.268641%
B97920.204290%
C979141.430031%
D97920.204290%

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 979 979 22 22 2.25% 2.25%
B 979 979 0 0 0.00% 0.00%
C 979 979 0 0 0.00% 0.00%
D 979 979 0 0 0.00% 0.00%

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 6 16 77797 2853.35 124 122 27.2
A 13 254 1446 48.64 124 122 27.2
A 0 226 1112 36.37 124 122 27.2
B 12 111 2914 107.81 125 122 25.9
B 0 189 2735 100.9 125 122 25.9
B 11 111 2568 94.45 125 122 25.9
C 7 247 62521 2067.43 122 122 30.2
C 14 238 19249 633.72 122 122 30.2
C 2 16 7080 230.53 122 122 30.2
D 1 52 17250 528.92 124 120 32.4
D 2 234 3544 105.72 124 120 32.4
D 8 195 2960 87.69 124 120 32.4

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