ASTROSAT CZTI

Data Quality Report

Orbit 04415

Creation date: 2024-06-27T14:41:39.679811
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_230T04_9000000550_04415cztM0_level2.evt modeM0/AS1G05_230T04_9000000550_04415cztM0_level2_quad_clean.evt
Size (bytes)729,483,84087,183,360
Size695.7 MB 83.1 MB
Events in quadrant A4,334,830564,666
Events in quadrant B4,606,230571,743
Events in quadrant C2,716,565600,550
Events in quadrant D10,036,447489,536

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167242
B0175901
C0121251
D0337941

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A590160010.167768%
B590159710.116929%
C5901901.525165%
D5901269545.670225%

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 7126 5902 376 376 5.28% 6.37%
B 7126 5902 416 416 5.84% 7.05%
C 7126 5902 1 1 0.01% 0.02%
D 7126 5902 2893 2893 40.60% 49.02%

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 0 13 1670964 12082.81 677 663 138.2
A 8 15 37860 269.08 677 663 138.2
A 14 111 14073 97.01 677 663 138.2
B 14 167 1928713 14953.52 685 669 128.9
B 12 111 10524 76.43 685 669 128.9
B 0 183 9857 71.26 685 669 128.9
C 9 247 21629 134.11 684 686 156.2
C 9 16 9831 58.56 684 686 156.2
C 12 4 8910 52.66 684 686 156.2
D 13 114 7442459 50910.69 620 602 146.2
D 13 239 106137 721.98 620 602 146.2
D 12 233 43235 291.66 620 602 146.2

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