ASTROSAT CZTI

Data Quality Report

Orbit 13738

Creation date: 2024-06-27T16:45:23.854253
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/AS1G08_062T01_9000002038_13738cztM0_level2.evt modeM0/AS1G08_062T01_9000002038_13738cztM0_level2_quad_clean.evt
Size (bytes)434,712,96089,902,080
Size414.6 MB 85.7 MB
Events in quadrant A3,006,096569,605
Events in quadrant B3,173,472563,791
Events in quadrant C3,042,858589,999
Events in quadrant D3,519,283564,101

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129192
B0134861
C0129241
D0149071

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6227470.754778%
B6227671.075960%
C6227170.273005%
D6227220.353300%

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 7233 6229 0 0 0.00% 0.00%
B 7233 6229 14 14 0.19% 0.22%
C 7233 6229 3 3 0.04% 0.05%
D 7233 6229 2 2 0.03% 0.03%

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 69 25290 157.48 768 754 155.8
A 1 162 11103 66.42 768 754 155.8
A 0 226 6987 40.01 768 754 155.8
B 0 219 69042 468.0 761 743 145.9
B 4 48 42399 285.44 761 743 145.9
B 3 64 31043 207.62 761 743 145.9
C 3 233 117743 672.18 746 750 174.1
C 14 234 11024 59.03 746 750 174.1
C 0 207 6985 35.82 746 750 174.1
D 13 168 264849 1371.24 741 724 192.6
D 5 222 180449 933.07 741 724 192.6
D 8 195 107247 553.03 741 724 192.6

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