ASTROSAT CZTI

Data Quality Report

Orbit 33064

Creation date: 2024-06-27T20:44:33.049718
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/AS1A11_080T01_9000004756_33064cztM0_level2.evt modeM0/AS1A11_080T01_9000004756_33064cztM0_level2_quad_clean.evt
Size (bytes)703,532,16053,092,800
Size670.9 MB 50.6 MB
Events in quadrant A2,350,259370,783
Events in quadrant B3,273,361355,432
Events in quadrant C2,783,584361,340
Events in quadrant D12,554,287161,696

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0102703
B0129712
C0115762
D0407822

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A509050.098232%
B50903116.110020%
C50901062.082515%
D5090456389.646365%

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 7002 5091 0 0 0.00% 0.00%
B 7002 5091 218 218 3.11% 4.28%
C 7002 5091 79 79 1.13% 1.55%
D 7002 5091 4654 4654 66.47% 91.42%

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 9647 74.55 601 590 121.5
A 0 159 8710 66.84 601 590 121.5
A 13 6 6633 49.74 601 590 121.5
B 5 172 684928 6044.29 589 576 113.2
B 5 200 67619 592.13 589 576 113.2
B 0 189 52450 458.16 589 576 113.2
C 0 10 297044 2192.6 583 590 135.2
C 7 221 105647 777.01 583 590 135.2
C 1 23 90268 663.27 583 590 135.2
D 7 223 9115998 90016.57 380 372 101.3
D 8 195 1174365 11593.15 380 372 101.3
D 12 218 282678 2787.76 380 372 101.3

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