ASTROSAT CZTI

Data Quality Report

Orbit 16016

Creation date: 2024-06-27T17:16:49.012934
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/AS1T02_091T01_9000002368_16016cztM0_level2.evt modeM0/AS1T02_091T01_9000002368_16016cztM0_level2_quad_clean.evt
Size (bytes)85,746,24025,237,440
Size81.8 MB 24.1 MB
Events in quadrant A623,081169,572
Events in quadrant B650,422172,892
Events in quadrant C636,774166,278
Events in quadrant D601,308163,685

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026792
B027341
C026861
D026641

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1209504.135649%
B1209645.293631%
C1209695.707196%
D1209383.143093%

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 1655 1210 1 1 0.06% 0.08%
B 1655 1210 1 1 0.06% 0.08%
C 1655 1211 0 0 0.00% 0.00%
D 1655 1210 1 1 0.06% 0.08%

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 14 239 2961 80.08 159 156 35.0
A 3 1 2013 53.01 159 156 35.0
A 12 96 1796 46.82 159 156 35.0
B 4 173 15528 448.13 162 158 34.3
B 12 111 3860 107.94 162 158 34.3
B 11 111 3162 87.59 162 158 34.3
C 14 238 23539 590.68 155 156 39.6
C 3 233 6476 159.65 155 156 39.6
C 10 22 1344 30.01 155 156 39.6
D 9 85 5149 120.74 155 150 41.4
D 2 152 4524 105.64 155 150 41.4
D 2 234 4194 97.67 155 150 41.4

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