ASTROSAT CZTI

Data Quality Report

Orbit 05792

Creation date: 2024-06-27T14:59:12.339433
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/AS1A02_106T01_9000000744_05792cztM0_level2.evt modeM0/AS1A02_106T01_9000000744_05792cztM0_level2_quad_clean.evt
Size (bytes)532,474,56087,768,000
Size507.8 MB 83.7 MB
Events in quadrant A3,708,830529,295
Events in quadrant B3,889,240544,580
Events in quadrant C3,649,147530,888
Events in quadrant D4,346,905508,484

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0162933
B0165492
C0162602
D0184752

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78222453.132191%
B78222503.196114%
C78221832.339555%
D78223824.883661%

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 9682 7824 1 1 0.01% 0.01%
B 9682 7825 4 4 0.04% 0.05%
C 9682 7825 0 0 0.00% 0.00%
D 9682 7825 176 176 1.82% 2.25%

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 7 16 16404 78.77 957 934 196.4
A 0 226 9328 42.74 957 934 196.4
A 12 194 9089 41.52 957 934 196.4
B 4 81 63722 336.77 970 946 186.4
B 15 204 35491 185.32 970 946 186.4
B 12 111 18698 95.23 970 946 186.4
C 13 61 7511 30.5 930 935 215.6
C 8 128 6901 27.67 930 935 215.6
C 14 67 5410 20.75 930 935 215.6
D 12 233 781209 3467.02 919 888 225.1
D 8 195 42343 184.19 919 888 225.1
D 11 241 17970 75.9 919 888 225.1

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