ASTROSAT CZTI

Data Quality Report

Orbit 14422

Creation date: 2024-06-27T16:54:57.239607
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/AS1A04_201T03_9000002128_14422cztM0_level2.evt modeM0/AS1A04_201T03_9000002128_14422cztM0_level2_quad_clean.evt
Size (bytes)629,424,00096,848,640
Size600.3 MB 92.4 MB
Events in quadrant A3,611,519623,208
Events in quadrant B3,911,564626,361
Events in quadrant C5,021,472601,775
Events in quadrant D6,033,330582,920

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151242
B0161651
C0195621
D0228131

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7154961.341907%
B71541542.152642%
C71543214.487000%
D71543925.479452%

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 7465 7155 2 2 0.03% 0.03%
B 7465 7155 45 45 0.60% 0.63%
C 7464 7154 194 194 2.60% 2.71%
D 7465 7155 256 256 3.43% 3.58%

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 12 189 188794 1066.69 856 836 176.2
A 8 15 111260 626.67 856 836 176.2
A 15 69 9123 47.03 856 836 176.2
B 0 182 189833 1152.57 848 826 164.0
B 0 85 111575 675.35 848 826 164.0
B 0 189 76912 463.97 848 826 164.0
C 3 233 1494211 7763.28 819 824 192.4
C 0 207 318853 1653.25 819 824 192.4
C 13 61 5927 26.53 819 824 192.4
D 13 122 2262633 11337.57 822 801 199.5
D 2 120 211847 1057.88 822 801 199.5
D 15 0 109004 542.37 822 801 199.5

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