ASTROSAT CZTI

Data Quality Report

Orbit 11192

Creation date: 2024-06-27T16:09:34.054253
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/AS1A04_171T01_9000001634_11192cztM0_level2.evt modeM0/AS1A04_171T01_9000001634_11192cztM0_level2_quad_clean.evt
Size (bytes)616,276,80099,573,120
Size587.7 MB 95.0 MB
Events in quadrant A4,563,790609,443
Events in quadrant B4,201,524623,739
Events in quadrant C3,914,598616,597
Events in quadrant D5,413,060580,486

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01740
B01740
C01740
D01740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190343
B0181032
C0176544
D02162012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84183273.884533%
B84182943.492516%
C84172332.768207%
D84154705.585264%

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 9478 8421 27 27 0.28% 0.32%
B 9478 8420 2 2 0.02% 0.02%
C 9478 8421 0 0 0.00% 0.00%
D 9478 8420 161 161 1.70% 1.91%

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 8 5 407996 1930.07 1014 989 210.9
A 8 15 164276 774.32 1014 989 210.9
A 14 238 83768 392.55 1014 989 210.9
B 4 239 102506 511.21 1023 998 198.6
B 4 80 35126 171.87 1023 998 198.6
B 0 214 31456 153.39 1023 998 198.6
C 13 61 7392 27.25 1001 1006 234.4
C 8 128 4817 16.26 1001 1006 234.4
C 14 234 3225 9.47 1001 1006 234.4
D 1 52 473325 1994.41 974 946 236.9
D 8 195 469118 1976.64 974 946 236.9
D 2 14 227631 957.07 974 946 236.9

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