ASTROSAT CZTI

Data Quality Report

Orbit 46377

Creation date: 2024-06-27T23:22:24.079623
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_070T06_9000006202_46377cztM0_level2.fits modeM0/AS1A13_070T06_9000006202_46377cztM0_level2_quad_clean.evt
Size (bytes)626,538,240132,344,640
Size597.5 MB 126.2 MB
Events in quadrant A7,279,435881,937
Events in quadrant B6,409,539849,359
Events in quadrant C3,817,369889,457
Events in quadrant D5,038,788806,126

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0272101
B0248551
C0175491
D0209001

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A83473494.181143%
B834894111.272161%
C83481441.724964%
D83483223.857211%

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 8777 8348 0 0 0.00% 0.00%
B 8778 8349 433 433 4.93% 5.19%
C 8778 8349 12 12 0.14% 0.14%
D 8778 8349 133 133 1.52% 1.59%

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 10 83 3512729 17682.98 957 934 198.6
A 13 248 42476 209.18 957 934 198.6
A 13 254 14259 67.1 957 934 198.6
B 5 32 1398133 7606.78 925 894 183.7
B 4 171 994923 5411.65 925 894 183.7
B 5 255 308334 1673.75 925 894 183.7
C 1 3 59949 266.09 952 955 221.7
C 10 58 18529 79.27 952 955 221.7
C 2 14 14348 60.41 952 955 221.7
D 1 52 918656 3935.17 941 911 233.2
D 8 176 200168 854.39 941 911 233.2
D 13 249 95692 406.41 941 911 233.2

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