ASTROSAT CZTI

Data Quality Report

Orbit 08480

Creation date: 2024-06-27T15:33:16.161986
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_007T01_9000001196_08480cztM0_level2.evt modeM0/AS1G07_007T01_9000001196_08480cztM0_level2_quad_clean.evt
Size (bytes)415,670,40053,352,000
Size396.4 MB 50.9 MB
Events in quadrant A2,516,804321,138
Events in quadrant B2,663,250324,078
Events in quadrant C2,448,374312,534
Events in quadrant D4,600,421286,642

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108702
B0112831
C0107971
D0172551

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5291230.434700%
B5291280.529201%
C5291160.302400%
D52913907.371007%

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 6546 5292 0 0 0.00% 0.00%
B 6546 5292 1 1 0.02% 0.02%
C 6546 5292 0 0 0.00% 0.00%
D 6546 5292 274 274 4.19% 5.18%

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 13 210 10701 75.55 649 634 133.3
A 4 2 7256 49.7 649 634 133.3
A 0 226 6135 41.28 649 634 133.3
B 11 51 45850 364.82 653 638 123.9
B 0 214 29447 232.46 653 638 123.9
B 4 81 14171 109.2 653 638 123.9
C 9 54 8683 55.3 624 629 145.6
C 13 61 4851 28.99 624 629 145.6
C 8 222 2818 15.03 624 629 145.6
D 1 52 1979143 13215.78 605 589 149.7
D 12 221 154519 1028.18 605 589 149.7
D 2 14 97883 649.88 605 589 149.7

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