ASTROSAT CZTI

Data Quality Report

Orbit 26332

Creation date: 2024-06-27T19:27:34.794320
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/AS1A09_008T02_9000003796_26332cztM0_level2.evt modeM0/AS1A09_008T02_9000003796_26332cztM0_level2_quad_clean.evt
Size (bytes)618,462,720101,793,600
Size589.8 MB 97.1 MB
Events in quadrant A3,070,053691,958
Events in quadrant B3,152,386712,413
Events in quadrant C4,305,551672,615
Events in quadrant D7,759,220549,157

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133200
B0134370
C0168220
D0275500

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6539220.336443%
B6540430.657492%
C65403345.107034%
D6540161624.709480%

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 7474 6540 0 0 0.00% 0.00%
B 7475 6541 0 0 0.00% 0.00%
C 7475 6541 154 154 2.06% 2.35%
D 7475 6540 1171 1171 15.67% 17.91%

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 10309 60.11 796 779 158.5
A 3 137 7321 41.26 796 779 158.5
A 0 226 6679 37.21 796 779 158.5
B 12 111 18208 114.46 798 777 152.3
B 11 111 16121 100.75 798 777 152.3
B 14 111 14951 93.07 798 777 152.3
C 3 233 874439 4863.23 775 781 179.6
C 2 16 276612 1535.42 775 781 179.6
C 14 238 123371 682.4 775 781 179.6
D 1 52 4618676 29288.86 671 655 157.7
D 12 227 577635 3659.38 671 655 157.7
D 2 234 26408 163.33 671 655 157.7

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