ASTROSAT CZTI

Data Quality Report

Orbit 10594

Creation date: 2024-06-27T16:01:15.023524
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/AS1T01_191T01_9000001536_10594cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10594cztM0_level2_quad_clean.evt
Size (bytes)420,189,12081,472,320
Size400.7 MB 77.7 MB
Events in quadrant A2,659,625533,135
Events in quadrant B4,133,224520,441
Events in quadrant C2,610,268533,219
Events in quadrant D2,950,579497,543

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0113802
B0158421
C0112891
D0122051

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5474210.383632%
B54744408.037998%
C5474120.219218%
D5474170.310559%

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 6819 5475 2 2 0.03% 0.04%
B 6819 5475 301 301 4.41% 5.50%
C 6819 5475 8 8 0.12% 0.15%
D 6819 5475 8 8 0.12% 0.15%

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 1 162 12655 85.75 681 669 139.8
A 14 254 9636 64.15 681 669 139.8
A 13 253 6862 44.31 681 669 139.8
B 4 239 1403169 11092.83 670 659 126.4
B 11 51 44688 348.24 670 659 126.4
B 4 80 33770 261.88 670 659 126.4
C 14 234 31893 204.56 660 668 152.6
C 13 61 5036 28.62 660 668 152.6
C 4 175 3337 17.49 660 668 152.6
D 2 16 221351 1406.55 647 631 156.9
D 8 195 156917 995.94 647 631 156.9
D 1 52 37930 237.69 647 631 156.9

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