ASTROSAT CZTI

Data Quality Report

Orbit 32396

Creation date: 2024-06-27T20:39:43.775320
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/AS1T04_059T01_9000004704_32396cztM0_level2.evt modeM0/AS1T04_059T01_9000004704_32396cztM0_level2_quad_clean.evt
Size (bytes)809,853,12088,142,400
Size772.3 MB 84.1 MB
Events in quadrant A3,155,353641,755
Events in quadrant B11,502,060458,762
Events in quadrant C4,468,042556,659
Events in quadrant D4,982,401577,798

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131093
B0384442
C0173822
D0192042

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6198270.435624%
B6198338954.678929%
C6198115718.667312%
D61982393.856083%

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 7518 6199 0 0 0.00% 0.00%
B 7518 6199 2735 2735 36.38% 44.12%
C 7518 6198 184 184 2.45% 2.97%
D 7518 6199 227 227 3.02% 3.66%

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 6 20265 119.97 812 797 162.3
A 13 254 11497 65.94 812 797 162.3
A 3 137 7792 43.11 812 797 162.3
B 4 80 6511993 52622.81 664 649 123.7
B 6 159 1506665 12171.18 664 649 123.7
B 5 172 480557 3878.47 664 649 123.7
C 3 233 554444 3507.31 683 688 157.9
C 0 10 473353 2993.71 683 688 157.9
C 14 238 338472 2139.41 683 688 157.9
D 8 195 1233530 6836.39 758 740 180.3
D 12 233 479941 2657.39 758 740 180.3
D 1 47 181949 1004.89 758 740 180.3

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