ASTROSAT CZTI

Data Quality Report

Orbit 25163

Creation date: 2024-06-27T19:14:28.864722
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_018T02_9000003684_25163cztM0_level2.evt modeM0/AS1A07_018T02_9000003684_25163cztM0_level2_quad_clean.evt
Size (bytes)536,472,000110,862,720
Size511.6 MB 105.7 MB
Events in quadrant A3,670,422712,896
Events in quadrant B3,723,513725,698
Events in quadrant C3,838,401695,682
Events in quadrant D4,485,457681,222

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161120
B0161680
C0165180
D0188080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7796750.962032%
B77961141.462288%
C77961311.680349%
D77962202.821960%

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 8571 7796 0 0 0.00% 0.00%
B 8571 7796 0 0 0.00% 0.00%
C 8571 7797 0 0 0.00% 0.00%
D 8571 7798 166 166 1.94% 2.13%

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 11376 54.29 949 929 192.4
A 3 137 8997 41.93 949 929 192.4
A 5 203 8346 38.55 949 929 192.4
B 12 111 23146 121.14 945 919 183.5
B 11 111 20810 108.41 945 919 183.5
B 14 111 19046 98.8 945 919 183.5
C 14 238 143444 655.97 913 915 217.3
C 7 247 127244 581.41 913 915 217.3
C 13 61 6357 25.04 913 915 217.3
D 1 52 896811 3991.62 911 882 224.5
D 8 195 133485 590.78 911 882 224.5
D 2 234 34688 150.62 911 882 224.5

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