ASTROSAT CZTI

Data Quality Report

Orbit 20221121_A12_054T01_9000005392_level2

Creation date: 2022-11-29T17:54:21.676521
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/AS1A12_054T01_9000005392cztM0_level2.fits modeM0/AS1A12_054T01_9000005392cztM0_level2_quad_clean.evt
Size (bytes)3,830,132,1604,013,104,320
Size3.6 GB 3.7 GB
Events in quadrant A23,504,61625,316,808
Events in quadrant B22,420,87224,942,516
Events in quadrant C23,081,85224,084,464
Events in quadrant D17,591,49217,858,138

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016140
B016140
C016140
D016140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A087620
B087620
C087620
D087620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A09682700
B010243390
C09148070
D019512480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A42840750711.183687%
B428407146463.418712%
C42840726490.618337%
D42840711491126.822858%

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 590051 428377 0 0 0.00% 0.00%
B 590051 428123 0 0 0.00% 0.00%
C 590051 428372 0 0 0.00% 0.00%
D 590050 427675 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 7 110 19276 8.92 6143 5752 1515.5
A 0 29 19058 8.78 6143 5752 1515.5
A 9 19 18984 8.73 6143 5752 1515.5
B 2 9 19439 11.74 5939 5651 1174.0
B 3 80 17618 10.19 5939 5651 1174.0
B 5 255 15538 8.42 5939 5651 1174.0
C 1 81 19084 8.71 6110 5729 1532.8
C 1 80 18559 8.37 6110 5729 1532.8
C 3 202 18317 8.21 6110 5729 1532.8
D 7 3 13010 6.29 5044 4589 1339.2
D 10 113 12836 6.16 5044 4589 1339.2
D 4 160 12688 6.05 5044 4589 1339.2

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