ASTROSAT CZTI

Data Quality Report

Orbit 17717

Creation date: 2024-06-27T17:39:58.675837
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_042T01_9000002630_17717cztM0_level2.evt modeM0/AS1T03_042T01_9000002630_17717cztM0_level2_quad_clean.evt
Size (bytes)650,332,80091,149,120
Size620.2 MB 86.9 MB
Events in quadrant A2,842,577622,222
Events in quadrant B2,910,112641,938
Events in quadrant C3,094,131607,939
Events in quadrant D10,443,020469,106

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123891
B0124201
C0131101
D0351871

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5988240.400802%
B5989360.601102%
C5989500.834864%
D5989260143.429621%

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 7318 5989 0 0 0.00% 0.00%
B 7319 5990 0 0 0.00% 0.00%
C 7319 5990 0 0 0.00% 0.00%
D 7319 5990 2396 2396 32.74% 40.00%

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 15 174 26788 176.93 733 720 147.3
A 0 226 6360 38.28 733 720 147.3
A 3 137 5287 31.0 733 720 147.3
B 12 111 16153 111.86 737 719 138.0
B 11 111 13870 95.31 737 719 138.0
B 14 111 12139 82.77 737 719 138.0
C 3 233 202661 1246.17 701 707 162.1
C 14 238 111622 684.41 701 707 162.1
C 5 218 32010 193.16 701 707 162.1
D 7 238 8121952 58409.52 553 538 139.0
D 1 52 122757 879.0 553 538 139.0
D 12 227 49891 354.95 553 538 139.0

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