ASTROSAT CZTI

Data Quality Report

Orbit 14096

Creation date: 2024-06-27T16:50:18.062670
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/AS1G08_022T01_9000002078_14096cztM0_level2.evt modeM0/AS1G08_022T01_9000002078_14096cztM0_level2_quad_clean.evt
Size (bytes)519,960,96070,960,320
Size495.9 MB 67.7 MB
Events in quadrant A3,558,407439,897
Events in quadrant B4,575,712423,266
Events in quadrant C3,515,099417,631
Events in quadrant D3,646,931404,190

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149053
B0181122
C0146832
D0151662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6644841.264299%
B66443304.966887%
C6644751.128838%
D66441011.520169%

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 7880 6646 0 0 0.00% 0.00%
B 7880 6645 162 162 2.06% 2.44%
C 7880 6645 4 4 0.05% 0.06%
D 7880 6646 25 25 0.32% 0.38%

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 15 222 97630 542.8 891 874 178.3
A 12 189 19113 102.32 891 874 178.3
A 9 143 10576 54.43 891 874 178.3
B 10 16 884546 5498.1 869 850 160.7
B 0 189 139428 862.19 869 850 160.7
B 0 214 51134 312.85 869 850 160.7
C 3 233 132268 679.69 851 856 193.3
C 10 22 48129 244.51 851 856 193.3
C 0 207 17091 83.97 851 856 193.3
D 1 52 113633 559.34 854 831 201.7
D 8 195 67458 330.38 854 831 201.7
D 7 80 59106 288.96 854 831 201.7

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