ASTROSAT CZTI

Data Quality Report

Orbit 17534

Creation date: 2024-06-27T17:37:43.591642
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/AS1T03_013T01_9000002598_17534cztM0_level2.evt modeM0/AS1T03_013T01_9000002598_17534cztM0_level2_quad_clean.evt
Size (bytes)640,581,120106,891,200
Size610.9 MB 101.9 MB
Events in quadrant A5,838,073680,944
Events in quadrant B3,943,801691,060
Events in quadrant C3,833,564665,970
Events in quadrant D5,249,435650,329

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0226253
B0170152
C0164302
D0212132

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A790085910.873418%
B79011712.164283%
C79011912.417416%
D79013784.784205%

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 8475 7901 471 471 5.56% 5.96%
B 8476 7904 3 3 0.04% 0.04%
C 8476 7903 0 0 0.00% 0.00%
D 8476 7904 225 225 2.65% 2.85%

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 14 237 2171926 11735.56 916 895 185.0
A 15 174 128293 688.65 916 895 185.0
A 13 210 14690 74.57 916 895 185.0
B 7 220 87303 474.91 954 930 181.9
B 0 197 23292 122.95 954 930 181.9
B 10 245 22524 118.73 954 930 181.9
C 14 238 139135 641.89 915 915 215.3
C 3 233 109059 502.22 915 915 215.3
C 13 61 6707 26.9 915 915 215.3
D 13 168 1004798 4494.32 922 893 223.4
D 13 189 360333 1609.15 922 893 223.4
D 4 239 167596 746.3 922 893 223.4

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