ASTROSAT CZTI

Data Quality Report

Orbit 06051

Creation date: 2024-06-27T15:02:10.042809
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/AS1A02_090T01_9000000778_06051cztM0_level2.evt modeM0/AS1A02_090T01_9000000778_06051cztM0_level2_quad_clean.evt
Size (bytes)420,062,40098,017,920
Size400.6 MB 93.5 MB
Events in quadrant A2,993,087638,930
Events in quadrant B3,439,140653,835
Events in quadrant C2,911,461641,713
Events in quadrant D2,960,086605,006

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128722
B0141664
C0127611
D0131511

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6156320.519818%
B61551211.965881%
C6156170.276153%
D6156320.519818%

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 7381 6157 2 2 0.03% 0.03%
B 7381 6157 29 29 0.39% 0.47%
C 7381 6157 0 0 0.00% 0.00%
D 7381 6157 17 17 0.23% 0.28%

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 8 15 104754 673.53 748 733 154.4
A 0 226 7185 41.78 748 733 154.4
A 12 194 7041 40.84 748 733 154.4
B 3 64 259772 1768.71 763 748 146.4
B 15 204 94060 637.17 763 748 146.4
B 0 214 62289 420.22 763 748 146.4
C 1 16 30134 172.43 736 743 170.4
C 9 54 9482 51.27 736 743 170.4
C 13 61 5893 30.21 736 743 170.4
D 5 97 119818 657.94 726 705 181.0
D 8 195 40103 217.62 726 705 181.0
D 2 206 19975 106.44 726 705 181.0

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