ASTROSAT CZTI

Data Quality Report

Orbit 14633

Creation date: 2024-06-27T16:57:45.736352
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/AS1A04_043T01_9000002156_14633cztM0_level2.evt modeM0/AS1A04_043T01_9000002156_14633cztM0_level2_quad_clean.evt
Size (bytes)609,304,320110,427,840
Size581.1 MB 105.3 MB
Events in quadrant A3,657,547742,884
Events in quadrant B3,678,311746,527
Events in quadrant C5,404,542731,543
Events in quadrant D5,298,272695,514

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150453
B0152142
C0206122
D0199642

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61301322.153344%
B61301302.120718%
C61301352.202284%
D613062910.261011%

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 7456 6132 58 58 0.78% 0.95%
B 7456 6131 19 19 0.25% 0.31%
C 7456 6131 4 4 0.05% 0.07%
D 7456 6131 619 619 8.30% 10.10%

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 0 23 192759 1198.53 809 793 160.2
A 1 162 106228 658.28 809 793 160.2
A 8 15 102652 635.95 809 793 160.2
B 0 189 225729 1512.17 810 790 148.8
B 0 228 90995 606.41 810 790 148.8
B 0 219 30799 201.74 810 790 148.8
C 3 233 2282596 12696.13 795 800 179.7
C 0 207 10306 52.89 795 800 179.7
C 3 234 9328 47.45 795 800 179.7
D 13 122 1209988 6483.51 777 760 186.5
D 12 110 379439 2030.36 777 760 186.5
D 10 70 329881 1764.65 777 760 186.5

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