ASTROSAT CZTI

Data Quality Report

Orbit 22160

Creation date: 2024-06-27T18:37:36.089744
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/AS1T03_145T01_9000003278_22160cztM0_level2.evt modeM0/AS1T03_145T01_9000003278_22160cztM0_level2_quad_clean.evt
Size (bytes)536,751,36067,420,800
Size511.9 MB 64.3 MB
Events in quadrant A3,423,224408,864
Events in quadrant B3,501,131418,786
Events in quadrant C3,517,489404,182
Events in quadrant D5,386,862369,866

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139442
B0142292
C0144242
D0200102

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6296761.207116%
B62961011.604193%
C62951492.366958%
D62955939.420175%

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 7586 6297 0 0 0.00% 0.00%
B 7586 6297 1 1 0.01% 0.02%
C 7585 6296 0 0 0.00% 0.00%
D 7585 6296 454 454 5.99% 7.21%

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 13 254 10474 54.85 888 873 175.1
A 0 226 7707 39.04 888 873 175.1
A 3 137 6848 34.13 888 873 175.1
B 12 111 19151 111.37 890 869 164.1
B 11 111 17321 100.22 890 869 164.1
B 14 111 15754 90.68 890 869 164.1
C 14 238 139392 705.12 863 874 196.4
C 9 54 8425 38.44 863 874 196.4
C 13 61 5786 25.0 863 874 196.4
D 1 52 2062056 10376.23 839 818 198.7
D 2 136 160548 804.08 839 818 198.7
D 2 234 22285 108.06 839 818 198.7

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