ASTROSAT CZTI

Data Quality Report

Orbit 22286

Creation date: 2024-06-27T18:39:00.611079
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/AS1A07_018T08_9000003296_22286cztM0_level2.evt modeM0/AS1A07_018T08_9000003296_22286cztM0_level2_quad_clean.evt
Size (bytes)450,446,40090,486,720
Size429.6 MB 86.3 MB
Events in quadrant A3,071,584581,763
Events in quadrant B3,180,247595,701
Events in quadrant C3,132,924563,289
Events in quadrant D3,810,601541,532

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133632
B0136022
C0134332
D0156562

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6570120.182648%
B6570230.350076%
C6570410.624049%
D65701382.100457%

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 7630 6571 0 0 0.00% 0.00%
B 7630 6571 3 3 0.04% 0.05%
C 7630 6571 0 0 0.00% 0.00%
D 7630 6571 114 114 1.49% 1.73%

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 13 254 8918 50.6 796 778 160.8
A 3 137 6869 37.87 796 778 160.8
A 0 226 6821 37.57 796 778 160.8
B 3 64 49573 316.56 798 778 154.1
B 12 111 18749 116.59 798 778 154.1
B 11 111 16803 103.96 798 778 154.1
C 14 238 121198 667.28 771 776 180.5
C 0 10 7097 35.03 771 776 180.5
C 13 61 5180 24.4 771 776 180.5
D 1 52 796215 4268.18 771 749 186.4
D 2 234 26675 139.11 771 749 186.4
D 2 136 24928 129.74 771 749 186.4

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