ASTROSAT CZTI

Data Quality Report

Orbit 08505

Creation date: 2024-06-27T15:33:36.476999
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/AS1G07_060T01_9000001200_08505cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08505cztM0_level2_quad_clean.evt
Size (bytes)492,059,52090,103,680
Size469.3 MB 85.9 MB
Events in quadrant A3,441,171560,511
Events in quadrant B3,776,615560,156
Events in quadrant C3,336,853556,484
Events in quadrant D3,847,009538,868

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153433
B0160612
C0151434
D0164732

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73681021.384365%
B73681401.900109%
C7367680.923035%
D73681401.900109%

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 8913 7368 15 15 0.17% 0.20%
B 8913 7369 24 24 0.27% 0.33%
C 8913 7369 0 0 0.00% 0.00%
D 8913 7369 47 47 0.53% 0.64%

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 15 174 34921 188.8 874 854 180.4
A 5 16 31734 171.14 874 854 180.4
A 13 251 12991 67.26 874 854 180.4
B 10 16 152988 897.39 873 850 169.5
B 4 81 89966 525.65 873 850 169.5
B 0 214 40677 234.92 873 850 169.5
C 13 61 6406 27.63 855 857 200.8
C 8 222 3025 10.8 855 857 200.8
C 3 202 2170 6.54 855 857 200.8
D 1 52 313586 1515.62 849 830 206.4
D 9 64 197539 953.25 849 830 206.4
D 13 122 71647 343.18 849 830 206.4

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