ASTROSAT CZTI

Data Quality Report

Orbit 11626

Creation date: 2024-06-27T16:16:05.204089
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_198T01_9000001708_11626cztM0_level2.evt modeM0/AS1A04_198T01_9000001708_11626cztM0_level2_quad_clean.evt
Size (bytes)669,588,48093,792,960
Size638.6 MB 89.4 MB
Events in quadrant A6,760,485568,192
Events in quadrant B4,826,748581,712
Events in quadrant C3,649,011583,125
Events in quadrant D4,511,418562,169

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0255373
B0194612
C0164152
D0187642

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A784089311.390306%
B78404906.250000%
C78401592.028061%
D78402753.507653%

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 9001 7843 284 284 3.16% 3.62%
B 9001 7843 114 114 1.27% 1.45%
C 9001 7843 0 0 0.00% 0.00%
D 9001 7843 75 75 0.83% 0.96%

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 2714861 14365.56 930 907 188.9
A 1 162 165825 872.95 930 907 188.9
A 1 178 99583 522.31 930 907 188.9
B 4 239 850103 4662.34 949 924 182.1
B 11 51 136162 742.51 949 924 182.1
B 3 64 69398 375.95 949 924 182.1
C 13 61 6853 27.55 933 935 214.8
C 14 234 6415 25.51 933 935 214.8
C 9 54 3998 14.26 933 935 214.8
D 1 52 429462 1932.11 924 896 221.8
D 13 152 134305 601.45 924 896 221.8
D 10 253 98348 439.34 924 896 221.8

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