ASTROSAT CZTI

Data Quality Report

Orbit 20240521_A13_034T01_9000006264_level2

Creation date: 2024-05-22T12:01:22.789267
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/AS1A13_034T01_9000006264cztM0_level2.fits modeM0/AS1A13_034T01_9000006264cztM0_level2_quad_clean.evt
Size (bytes)215,737,920209,681,280
Size205.7 MB 200.0 MB
Events in quadrant A1,225,9341,191,557
Events in quadrant B1,223,4381,221,701
Events in quadrant C1,269,1641,157,265
Events in quadrant D1,068,3261,033,701

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0939240
B0589970
C0531470
D0679070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A05160
B05200
C05200
D05180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2529012705.021748%
B254478273.249892%
C253664301.695183%
D2535115105.956373%

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 28880 25374 0 0 0.00% 0.00%
B 28880 25558 0 0 0.00% 0.00%
C 28880 25481 0 0 0.00% 0.00%
D 28874 25411 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 29 975 7.97 320 299 84.8
A 14 95 965 7.86 320 299 84.8
A 0 30 936 7.51 320 299 84.8
B 2 9 1250 14.55 322 307 64.8
B 2 8 986 10.48 322 307 64.8
B 3 17 929 9.6 322 307 64.8
C 1 81 1011 7.94 335 310 88.3
C 3 202 978 7.57 335 310 88.3
C 3 203 954 7.3 335 310 88.3
D 3 14 823 6.19 306 275 88.5
D 4 16 771 5.6 306 275 88.5
D 15 47 763 5.51 306 275 88.5

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