ASTROSAT CZTI

Data Quality Report

Orbit 07689

Creation date: 2024-06-27T15:22:46.074229
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/AS1G06_104T01_9000001060_07689cztM0_level2.evt modeM0/AS1G06_104T01_9000001060_07689cztM0_level2_quad_clean.evt
Size (bytes)634,484,16073,313,280
Size605.1 MB 69.9 MB
Events in quadrant A3,215,186446,107
Events in quadrant B3,604,290454,070
Events in quadrant C8,108,091412,351
Events in quadrant D3,814,210420,360

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144003
B0152072
C0288162
D0161532

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69861512.161466%
B69861812.590896%
C6986171224.506155%
D69861542.204409%

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 7361 6987 0 0 0.00% 0.00%
B 7361 6987 19 19 0.26% 0.27%
C 7361 6988 1547 1547 21.02% 22.14%
D 7361 6988 30 30 0.41% 0.43%

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 0 226 7803 40.94 831 811 170.8
A 12 194 7537 39.38 831 811 170.8
A 3 1 7194 37.38 831 811 170.8
B 0 219 187532 1164.8 834 814 160.3
B 4 239 79127 488.54 834 814 160.3
B 0 214 23987 144.56 834 814 160.3
C 9 68 4973299 27900.55 761 763 178.2
C 8 229 111965 623.95 761 763 178.2
C 1 16 19828 106.97 761 763 178.2
D 1 83 283557 1418.97 811 785 199.3
D 2 152 116815 582.25 811 785 199.3
D 12 233 93860 467.06 811 785 199.3

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