ASTROSAT CZTI

Data Quality Report

Orbit 17208

Creation date: 2024-06-27T17:33:35.194669
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/AS1A05_185T04_9000002548_17208cztM0_level2.evt modeM0/AS1A05_185T04_9000002548_17208cztM0_level2_quad_clean.evt
Size (bytes)454,826,880102,055,680
Size433.8 MB 97.3 MB
Events in quadrant A3,191,394683,279
Events in quadrant B3,297,946680,259
Events in quadrant C3,465,924639,234
Events in quadrant D3,383,644640,756

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137363
B0140222
C0143672
D0143842

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6413580.904413%
B6413580.904413%
C6413981.528146%
D6413971.512553%

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 7618 6414 0 0 0.00% 0.00%
B 7618 6414 6 6 0.08% 0.09%
C 7618 6414 0 0 0.00% 0.00%
D 7618 6413 46 46 0.60% 0.72%

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 20566 119.4 825 810 165.5
A 0 226 7440 40.07 825 810 165.5
A 12 194 6167 32.38 825 810 165.5
B 0 197 29875 187.52 817 799 155.1
B 7 220 23223 144.62 817 799 155.1
B 12 111 17168 105.57 817 799 155.1
C 3 233 287922 1578.25 781 786 181.9
C 14 238 121779 665.04 781 786 181.9
C 9 54 9160 46.03 781 786 181.9
D 12 233 109760 561.0 801 780 194.3
D 11 176 105812 540.67 801 780 194.3
D 10 70 45198 228.65 801 780 194.3

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