ASTROSAT CZTI

Data Quality Report

Orbit 15699

Creation date: 2024-06-27T17:12:17.090862
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/AS1T02_088T01_9000002320_15699cztM0_level2.evt modeM0/AS1T02_088T01_9000002320_15699cztM0_level2_quad_clean.evt
Size (bytes)491,872,32091,552,320
Size469.1 MB 87.3 MB
Events in quadrant A3,152,416586,047
Events in quadrant B3,419,450593,109
Events in quadrant C3,267,488568,012
Events in quadrant D4,594,705550,618

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139213
B0145372
C0141362
D0184742

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6811290.425782%
B6811490.719424%
C6811520.763471%
D68111311.923359%

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 8487 6814 0 0 0.00% 0.00%
B 8487 6814 6 6 0.07% 0.09%
C 8487 6814 6 6 0.07% 0.09%
D 8487 6814 45 45 0.53% 0.66%

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 4 2 10412 57.64 815 796 166.8
A 0 226 7284 38.89 815 796 166.8
A 9 143 6382 33.48 815 796 166.8
B 5 236 81115 518.64 816 797 154.9
B 4 173 26630 166.81 816 797 154.9
B 4 216 25404 158.89 816 797 154.9
C 14 238 118523 646.06 777 783 182.2
C 7 221 52307 282.72 777 783 182.2
C 10 22 23313 123.63 777 783 182.2
D 1 52 1250242 6504.86 784 760 192.1
D 12 110 297720 1545.99 784 760 192.1
D 2 234 31286 158.92 784 760 192.1

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