ASTROSAT CZTI

Data Quality Report

Orbit 42422

Creation date: 2024-06-27T22:39:53.114953
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/AS1A12_101T04_9000005804_42422cztM0_level2.fits modeM0/AS1A12_101T04_9000005804_42422cztM0_level2_quad_clean.evt
Size (bytes)486,552,96097,214,400
Size464.0 MB 92.7 MB
Events in quadrant A3,177,149678,892
Events in quadrant B2,694,382693,092
Events in quadrant C2,845,970652,733
Events in quadrant D8,813,591488,197

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131922
B0125212
C0124792
D0304692

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6173130.210595%
B6174180.291545%
C617460.097182%
D6174146723.760933%

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 8796 6175 2 2 0.02% 0.03%
B 8797 6176 3 3 0.03% 0.05%
C 8797 6176 0 0 0.00% 0.00%
D 8797 6176 1456 1456 16.55% 23.58%

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 558823 4026.84 671 660 138.6
A 13 6 14940 103.02 671 660 138.6
A 13 254 8828 58.93 671 660 138.6
B 3 112 30829 231.53 665 647 130.4
B 5 172 25256 188.78 665 647 130.4
B 12 111 16972 125.23 665 647 130.4
C 15 214 260587 1689.97 654 657 153.8
C 10 34 16368 102.15 654 657 153.8
C 12 249 8909 53.65 654 657 153.8
D 12 33 5191831 35176.05 604 588 147.6
D 12 6 849428 5751.77 604 588 147.6
D 1 52 234119 1582.41 604 588 147.6

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