ASTROSAT CZTI

Data Quality Report

Orbit 44207

Creation date: 2024-06-27T23:00:32.328879
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_047T01_9000005970_44207cztM0_level2.fits modeM0/AS1A13_047T01_9000005970_44207cztM0_level2_quad_clean.evt
Size (bytes)119,609,28024,580,800
Size114.1 MB 23.4 MB
Events in quadrant A1,702,057153,204
Events in quadrant B830,924170,396
Events in quadrant C767,389162,794
Events in quadrant D1,006,000145,281

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061650
B033990
C032760
D039480

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A152515610.229508%
B152560.393443%
C152520.131148%
D1525634.131148%

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 1525 1525 86 86 5.64% 5.64%
B 1525 1525 2 2 0.13% 0.13%
C 1525 1525 0 0 0.00% 0.00%
D 1525 1525 37 37 2.43% 2.43%

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 15 223 712011 18942.04 171 167 37.6
A 10 83 323490 8603.57 171 167 37.6
A 0 243 4110 104.92 171 167 37.6
B 0 200 67880 1868.26 175 169 36.2
B 4 171 28969 794.64 175 169 36.2
B 0 190 9863 267.47 175 169 36.2
C 4 254 28367 647.87 176 176 43.5
C 14 204 23831 543.63 176 176 43.5
C 14 254 22817 520.32 176 176 43.5
D 12 16 104683 2308.64 173 166 45.3
D 2 249 83563 1842.12 173 166 45.3
D 1 52 79124 1744.07 173 166 45.3

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