ASTROSAT CZTI

Data Quality Report

Orbit 28318

Creation date: 2024-06-27T19:50:25.660022
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/AS1A10_102T10_9000004080_28318cztM0_level2.evt modeM0/AS1A10_102T10_9000004080_28318cztM0_level2_quad_clean.evt
Size (bytes)1,793,453,760325,589,760
Size1.7 GB 310.5 MB
Events in quadrant A11,089,9702,090,818
Events in quadrant B12,499,6502,133,707
Events in quadrant C11,199,6622,059,405
Events in quadrant D17,923,9311,944,648

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0489060
B0526320
C0489760
D0697800

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A237384351.832505%
B237386662.805628%
C237384842.038925%
D2373915906.697839%

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 25398 23742 0 0 0.00% 0.00%
B 25398 23742 123 123 0.48% 0.52%
C 25398 23742 0 0 0.00% 0.00%
D 25399 23742 1126 1126 4.43% 4.74%

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 39959 64.96 2869 2807 571.9
A 3 137 28369 44.69 2869 2807 571.9
A 0 226 24343 37.66 2869 2807 571.9
B 10 245 731933 1348.94 2842 2766 540.5
B 10 246 218680 399.43 2842 2766 540.5
B 15 222 144572 262.34 2842 2766 540.5
C 14 238 447488 698.15 2743 2756 637.0
C 3 233 60957 91.36 2743 2756 637.0
C 13 61 18957 25.43 2743 2756 637.0
D 1 52 6022048 9470.46 2700 2627 635.6
D 8 195 638901 1001.06 2700 2627 635.6
D 2 250 537808 842.01 2700 2627 635.6

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