ASTROSAT CZTI

Data Quality Report

Orbit 14095

Creation date: 2024-06-27T16:50:17.310444
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_14095cztM0_level2.evt modeM0/AS1G08_022T01_9000002078_14095cztM0_level2_quad_clean.evt
Size (bytes)522,915,84077,889,600
Size498.7 MB 74.3 MB
Events in quadrant A3,481,439492,218
Events in quadrant B4,829,899471,840
Events in quadrant C3,427,909471,790
Events in quadrant D3,640,976453,941

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147513
B0187892
C0144772
D0151652

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67251031.531599%
B67254937.330855%
C6725761.130112%
D67251191.769517%

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 7846 6727 2 2 0.03% 0.03%
B 7846 6724 246 246 3.14% 3.66%
C 7846 6726 3 3 0.04% 0.04%
D 7846 6727 26 26 0.33% 0.39%

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 103945 589.77 868 849 174.8
A 12 189 21879 120.31 868 849 174.8
A 8 15 11933 63.41 868 849 174.8
B 10 16 1308549 8285.15 838 816 157.8
B 0 189 95727 601.31 838 816 157.8
B 4 80 53063 331.01 838 816 157.8
C 3 233 132150 687.29 835 841 191.1
C 10 22 26028 131.83 835 841 191.1
C 0 207 13738 67.51 835 841 191.1
D 7 80 142874 709.02 836 811 200.4
D 8 195 94389 467.04 836 811 200.4
D 1 52 79736 393.91 836 811 200.4

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