ASTROSAT CZTI

Data Quality Report

Orbit 43211

Creation date: 2024-06-27T22:49:20.830803
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_036T17_9000005858_43211cztM0_level2.fits modeM0/AS1A09_036T17_9000005858_43211cztM0_level2_quad_clean.evt
Size (bytes)316,877,76087,831,360
Size302.2 MB 83.8 MB
Events in quadrant A3,218,733581,546
Events in quadrant B2,419,728609,437
Events in quadrant C2,509,140580,698
Events in quadrant D3,178,879525,441

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128352
B0107392
C0105542
D0129582

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0290
B0300
C0300
D0300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51771021.970253%
B5177310.598802%
C517760.115897%
D51771252.414526%

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 7061 5178 65 65 0.92% 1.26%
B 7061 5178 13 13 0.18% 0.25%
C 7061 5178 0 0 0.00% 0.00%
D 7061 5178 121 121 1.71% 2.34%

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 10 83 562542 4778.27 571 560 117.6
A 15 237 286803 2433.79 571 560 117.6
A 12 189 90945 768.5 571 560 117.6
B 5 172 85516 753.83 579 563 112.7
B 0 229 25664 222.73 579 563 112.7
B 7 202 14782 126.17 579 563 112.7
C 15 214 217117 1613.93 572 576 134.2
C 14 254 30541 223.34 572 576 134.2
C 4 254 25058 182.47 572 576 134.2
D 1 52 642356 4614.0 563 548 139.1
D 5 222 146355 1048.22 563 548 139.1
D 12 6 86582 618.5 563 548 139.1

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