ASTROSAT CZTI

Data Quality Report

Orbit 17049

Creation date: 2024-06-27T17:31:20.612202
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_004T01_9000002532_17049cztM0_level2.evt modeM0/AS1T03_004T01_9000002532_17049cztM0_level2_quad_clean.evt
Size (bytes)462,536,64085,377,600
Size441.1 MB 81.4 MB
Events in quadrant A3,079,956544,767
Events in quadrant B3,332,475565,237
Events in quadrant C3,757,789527,640
Events in quadrant D3,411,533509,681

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130892
B0138272
C0153762
D0143592

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6275240.382470%
B6275550.876494%
C6275771.227092%
D6275871.386454%

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 8751 6278 0 0 0.00% 0.00%
B 8751 6278 7 7 0.08% 0.11%
C 8751 6277 0 0 0.00% 0.00%
D 8751 6278 53 53 0.61% 0.84%

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 0 226 7095 39.34 799 785 160.4
A 12 194 5798 31.25 799 785 160.4
A 3 137 5549 29.7 799 785 160.4
B 4 216 34762 223.57 811 792 151.9
B 0 197 34297 220.51 811 792 151.9
B 0 219 33204 213.32 811 792 151.9
C 3 233 619415 3461.81 774 781 178.7
C 14 238 118917 661.08 774 781 178.7
C 13 61 5360 25.62 774 781 178.7
D 10 70 187599 998.05 774 753 187.2
D 5 222 171380 911.42 774 753 187.2
D 13 168 65339 344.99 774 753 187.2

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