ASTROSAT CZTI

Data Quality Report

Orbit 08574

Creation date: 2024-06-27T15:34:28.127411
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/AS1G07_060T01_9000001200_08574cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08574cztM0_level2_quad_clean.evt
Size (bytes)258,171,84038,352,960
Size246.2 MB 36.6 MB
Events in quadrant A1,815,942225,283
Events in quadrant B1,948,221224,452
Events in quadrant C1,820,553223,331
Events in quadrant D1,971,951218,141

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08810
B08814
C08816
D08812

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A092091106
B096431341
C091911058
D093781058

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A38192767.227023%
B37672937.778073%
C38371975.134219%
D38562055.316390%

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 4371 4127 0 0 0.00% 0.00%
B 4371 4049 11 11 0.25% 0.27%
C 4371 4109 0 0 0.00% 0.00%
D 4371 4134 0 0 0.00% 0.00%

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 0 226 4382 39.74 470 456 98.8
A 15 174 4171 37.6 470 456 98.8
A 12 194 4027 36.14 470 456 98.8
B 10 16 85824 918.2 460 448 93.0
B 0 214 54668 583.13 460 448 93.0
B 10 252 15983 167.08 460 448 93.0
C 8 128 8151 70.19 462 462 109.5
C 13 61 3639 29.0 462 462 109.5
C 8 112 3413 26.94 462 462 109.5
D 1 52 96808 834.94 459 444 115.4
D 8 195 90660 781.67 459 444 115.4
D 2 234 13777 115.52 459 444 115.4

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