ASTROSAT CZTI

Data Quality Report

Orbit 23624

Creation date: 2024-06-27T18:56:56.057345
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_178T01_9000003488_23624cztM0_level2.evt modeM0/AS1T03_178T01_9000003488_23624cztM0_level2_quad_clean.evt
Size (bytes)543,352,32083,730,240
Size518.2 MB 79.9 MB
Events in quadrant A3,143,699530,402
Events in quadrant B3,319,478552,233
Events in quadrant C3,330,719528,129
Events in quadrant D6,236,728486,852

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129742
B0133672
C0133892
D0227052

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6271350.558125%
B6271711.132196%
C62711101.754106%
D62713956.298836%

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 7496 6271 0 0 0.00% 0.00%
B 7496 6271 4 4 0.05% 0.06%
C 7496 6271 7 7 0.09% 0.11%
D 7496 6271 397 397 5.30% 6.33%

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 8680 48.22 815 799 163.5
A 3 137 7194 39.12 815 799 163.5
A 0 226 6904 37.35 815 799 163.5
B 3 64 29352 183.16 825 803 155.9
B 0 229 28917 180.37 825 803 155.9
B 12 111 18650 114.5 825 803 155.9
C 14 238 126756 672.14 808 816 187.4
C 0 10 43607 228.37 808 816 187.4
C 7 247 6422 29.92 808 816 187.4
D 1 52 3095164 16133.62 797 776 191.8
D 12 233 90872 469.75 797 776 191.8
D 8 195 34152 174.02 797 776 191.8

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