ASTROSAT CZTI

Data Quality Report

Orbit 04370

Creation date: 2024-06-27T14:41:01.898414
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_252T01_9000000544_04370cztM0_level2.evt modeM0/AS1G05_252T01_9000000544_04370cztM0_level2_quad_clean.evt
Size (bytes)502,750,08066,395,520
Size479.5 MB 63.3 MB
Events in quadrant A5,803,823384,054
Events in quadrant B3,027,451415,841
Events in quadrant C2,972,762400,831
Events in quadrant D3,016,033391,612

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0213402
B0124561
C0125921
D0129101

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A598072312.090301%
B5980400.668896%
C5980580.969900%
D5980601.003344%

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 7260 5980 567 567 7.81% 9.48%
B 7259 5979 0 0 0.00% 0.00%
C 7259 5979 4 4 0.06% 0.07%
D 7260 5980 27 27 0.37% 0.45%

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 13 251 2925956 20005.23 726 713 146.2
A 15 234 46895 315.83 726 713 146.2
A 0 50 34572 231.55 726 713 146.2
B 15 204 44741 304.78 763 747 144.3
B 0 183 25671 172.67 763 747 144.3
B 12 111 12223 79.5 763 747 144.3
C 9 247 98182 575.79 727 731 169.2
C 9 16 27011 155.27 727 731 169.2
C 12 4 6643 34.93 727 731 169.2
D 4 95 119775 681.72 728 708 174.7
D 2 136 40437 227.47 728 708 174.7
D 2 37 32623 182.73 728 708 174.7

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