ASTROSAT CZTI

Data Quality Report

Orbit 10150

Creation date: 2024-06-27T15:55:38.366331
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/AS1A03_116T01_9000001460_10150cztM0_level2.evt modeM0/AS1A03_116T01_9000001460_10150cztM0_level2_quad_clean.evt
Size (bytes)212,129,28034,272,000
Size202.3 MB 32.7 MB
Events in quadrant A942,927243,285
Events in quadrant B978,845245,791
Events in quadrant C843,024240,945
Events in quadrant D3,525,628165,768

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0380
B0380
C0380
D0380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040797
B042118
C039765
D01183438

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A194390.463201%
B1943211.080803%
C194350.257334%
D193998050.541516%

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 1945 1945 1 1 0.05% 0.05%
B 1945 1945 8 8 0.41% 0.41%
C 1945 1945 0 0 0.00% 0.00%
D 1944 1941 977 977 50.26% 50.33%

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 66333 1370.88 224 219 48.2
A 15 174 5616 111.91 224 219 48.2
A 15 223 4618 91.21 224 219 48.2
B 4 239 60603 1322.34 225 220 45.7
B 0 219 15606 336.94 225 220 45.7
B 0 198 10463 224.31 225 220 45.7
C 14 234 4258 78.02 212 214 51.8
C 8 128 3593 65.19 212 214 51.8
C 8 112 2227 38.84 212 214 51.8
D 1 52 2651625 63114.12 165 160 42.0
D 8 195 120066 2854.18 165 160 42.0
D 2 16 45742 1085.01 165 160 42.0

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