ASTROSAT CZTI

Data Quality Report

Orbit 09364

Creation date: 2024-06-27T15:45:04.423568
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/AS1G07_040T01_9000001326_09364cztM0_level2.evt modeM0/AS1G07_040T01_9000001326_09364cztM0_level2_quad_clean.evt
Size (bytes)486,331,200102,983,040
Size463.8 MB 98.2 MB
Events in quadrant A4,078,464684,309
Events in quadrant B3,215,484693,263
Events in quadrant C2,892,410665,519
Events in quadrant D4,115,070636,474

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0165333
B0137362
C0129612
D0166722

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62951011.604448%
B6295370.587768%
C629560.095314%
D6295530.841938%

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 7626 6296 18 18 0.24% 0.29%
B 7626 6296 4 4 0.05% 0.06%
C 7626 6296 0 0 0.00% 0.00%
D 7626 6296 30 30 0.39% 0.48%

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 5 877429 5594.61 772 757 156.7
A 1 162 78967 499.11 772 757 156.7
A 13 251 62297 392.73 772 757 156.7
B 0 214 48975 326.41 779 760 147.7
B 4 173 39643 263.24 779 760 147.7
B 0 245 29999 197.95 779 760 147.7
C 9 68 12177 68.12 733 736 167.9
C 14 67 9497 52.17 733 736 167.9
C 10 22 8195 44.41 733 736 167.9
D 8 195 783406 4051.05 725 707 193.2
D 1 52 332064 1715.02 725 707 193.2
D 1 255 49443 252.25 725 707 193.2

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