ASTROSAT CZTI

Data Quality Report

Orbit 22933

Creation date: 2024-06-27T18:47:44.381516
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/AS1T03_170T01_9000003388_22933cztM0_level2.evt modeM0/AS1T03_170T01_9000003388_22933cztM0_level2_quad_clean.evt
Size (bytes)544,374,72095,955,840
Size519.2 MB 91.5 MB
Events in quadrant A3,193,068627,507
Events in quadrant B3,322,540633,905
Events in quadrant C3,439,184606,445
Events in quadrant D6,071,871565,550

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140101
B0142231
C0146321
D0227211

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6782991.459746%
B67831241.828100%
C67831872.756892%
D67836229.169984%

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 7067 6784 0 0 0.00% 0.00%
B 7068 6785 6 6 0.08% 0.09%
C 7068 6785 51 51 0.72% 0.75%
D 7068 6785 388 388 5.49% 5.72%

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 4 2 45910 274.56 816 799 164.3
A 13 254 11826 67.11 816 799 164.3
A 3 137 7145 38.62 816 799 164.3
B 3 64 56825 360.24 809 790 155.5
B 0 190 37279 234.58 809 790 155.5
B 0 189 21844 135.35 809 790 155.5
C 10 9 152838 837.47 774 777 181.6
C 14 238 122834 672.22 774 777 181.6
C 7 247 87875 479.69 774 777 181.6
D 1 52 2134970 11593.32 756 735 184.1
D 7 238 414006 2244.92 756 735 184.1
D 13 174 280457 1519.47 756 735 184.1

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