ASTROSAT CZTI

Data Quality Report

Orbit 22063

Creation date: 2024-06-27T18:36:05.315220
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/AS1A07_149T01_9000003266_22063cztM0_level2.evt modeM0/AS1A07_149T01_9000003266_22063cztM0_level2_quad_clean.evt
Size (bytes)533,854,080118,033,920
Size509.1 MB 112.6 MB
Events in quadrant A3,405,899783,057
Events in quadrant B3,601,267793,230
Events in quadrant C3,458,123757,400
Events in quadrant D5,204,857730,839

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150392
B0154692
C0151092
D0205382

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7326290.395850%
B7326831.132951%
C7326791.078351%
D73265147.016107%

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 7780 7325 0 0 0.00% 0.00%
B 7780 7325 8 8 0.10% 0.11%
C 7780 7325 0 0 0.00% 0.00%
D 7780 7325 480 480 6.17% 6.55%

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 11839 61.93 882 865 177.2
A 0 226 7652 38.3 882 865 177.2
A 3 137 7489 37.38 882 865 177.2
B 3 64 56664 336.84 880 857 165.7
B 0 190 39585 233.75 880 857 165.7
B 12 111 19645 113.4 880 857 165.7
C 14 238 133480 675.06 842 846 196.5
C 8 208 22557 110.5 842 846 196.5
C 10 22 12989 61.8 842 846 196.5
D 1 52 1331386 6720.6 824 800 198.0
D 13 172 439636 2216.5 824 800 198.0
D 13 104 102464 513.49 824 800 198.0

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