ASTROSAT CZTI

Data Quality Report

Orbit 17110

Creation date: 2024-06-27T17:32:15.045844
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/AS1A05_004T03_9000002538_17110cztM0_level2.evt modeM0/AS1A05_004T03_9000002538_17110cztM0_level2_quad_clean.evt
Size (bytes)462,352,32080,640,000
Size440.9 MB 76.9 MB
Events in quadrant A3,104,043507,640
Events in quadrant B3,237,641519,649
Events in quadrant C3,342,556488,302
Events in quadrant D3,878,331474,692

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133372
B0136452
C0139732
D0158252

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6478300.463106%
B6478560.864464%
C6478791.219512%
D64781312.022229%

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 7748 6479 0 0 0.00% 0.00%
B 7748 6479 0 0 0.00% 0.00%
C 7748 6479 0 0 0.00% 0.00%
D 7748 6479 112 112 1.45% 1.73%

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 4 2 10522 59.88 804 786 162.6
A 0 226 7013 38.3 804 786 162.6
A 12 194 5793 30.79 804 786 162.6
B 0 219 19813 123.87 812 795 153.5
B 12 111 17579 109.32 812 795 153.5
B 0 189 16217 100.44 812 795 153.5
C 3 233 198289 1096.19 775 782 180.2
C 14 238 121365 669.25 775 782 180.2
C 13 61 5538 26.4 775 782 180.2
D 12 32 647674 3471.37 770 748 186.4
D 5 222 217952 1165.51 770 748 186.4
D 10 70 72970 387.54 770 748 186.4

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