ASTROSAT CZTI

Data Quality Report

Orbit 14324

Creation date: 2024-06-27T16:53:31.343972
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/AS1G08_078T01_9000002110_14324cztM0_level2.evt modeM0/AS1G08_078T01_9000002110_14324cztM0_level2_quad_clean.evt
Size (bytes)486,051,84097,470,720
Size463.5 MB 93.0 MB
Events in quadrant A3,308,785625,692
Events in quadrant B3,708,831627,072
Events in quadrant C3,658,984620,674
Events in quadrant D3,578,036600,784

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143473
B0152272
C0149532
D0152152

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6852460.671337%
B68521021.488616%
C6852550.802685%
D6852821.196731%

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 8638 6855 0 0 0.00% 0.00%
B 8638 6855 21 21 0.24% 0.31%
C 8638 6855 0 0 0.00% 0.00%
D 8638 6855 42 42 0.49% 0.61%

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 12 189 96031 561.48 830 812 169.6
A 8 15 14688 81.82 830 812 169.6
A 0 226 7480 39.32 830 812 169.6
B 0 219 294861 1834.55 830 808 160.3
B 10 16 99291 614.42 830 808 160.3
B 0 189 29817 180.98 830 808 160.3
C 3 233 466373 2432.67 813 819 191.4
C 8 128 11960 58.22 813 819 191.4
C 8 112 6413 29.23 813 819 191.4
D 5 222 256712 1345.56 803 785 190.2
D 2 120 127773 667.65 803 785 190.2
D 13 122 45148 233.24 803 785 190.2

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