ASTROSAT CZTI

Data Quality Report

Orbit 04767

Creation date: 2024-06-27T14:46:42.236963
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/AS1G05_212T01_9000000600_04767cztM0_level2.evt modeM0/AS1G05_212T01_9000000600_04767cztM0_level2_quad_clean.evt
Size (bytes)415,621,44065,295,360
Size396.4 MB 62.3 MB
Events in quadrant A2,408,108404,587
Events in quadrant B2,959,433404,722
Events in quadrant C3,567,384394,190
Events in quadrant D3,273,971384,360

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01127226
B01255340
C01457562
D01390752

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5560260.467626%
B5557561.007738%
C55542474.447245%
D55552714.878488%

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 5573 5573 0 0 0.00% 0.00%
B 5573 5573 28 28 0.50% 0.50%
C 5573 5573 190 190 3.41% 3.41%
D 5573 5572 184 184 3.30% 3.30%

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 8 15 28281 218.23 614 599 126.8
A 0 149 10680 79.47 614 599 126.8
A 0 226 6879 49.51 614 599 126.8
B 4 80 212173 1773.83 619 602 119.3
B 14 167 207514 1734.77 619 602 119.3
B 15 204 110668 922.8 619 602 119.3
C 14 48 1257528 9111.39 588 589 138.0
C 1 16 8310 55.97 588 589 138.0
C 12 4 5855 38.17 588 589 138.0
D 13 235 801797 5590.19 589 570 143.3
D 2 136 91002 630.95 589 570 143.3
D 11 132 54276 374.71 589 570 143.3

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