ASTROSAT CZTI

Data Quality Report

Orbit 34021

Creation date: 2024-06-27T20:55:31.026810
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/AS1A06_003T04_9000004866_34021cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34021cztM0_level2_quad_clean.evt
Size (bytes)751,178,88072,748,800
Size716.4 MB 69.4 MB
Events in quadrant A2,635,202510,219
Events in quadrant B9,026,960402,748
Events in quadrant C3,271,799490,683
Events in quadrant D7,431,635400,295

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114793
B0307082
C0129812
D0259782

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A569150.087858%
B5691256245.018450%
C5691550.966438%
D5691137724.196099%

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 7125 5693 0 0 0.00% 0.00%
B 7125 5692 2313 2313 32.46% 40.64%
C 7125 5692 44 44 0.62% 0.77%
D 7125 5693 1373 1373 19.27% 24.12%

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 15 169 31714 233.16 665 651 133.2
A 10 83 18332 132.72 665 651 133.2
A 13 6 11798 83.67 665 651 133.2
B 5 31 3062672 29084.58 551 537 105.3
B 5 15 2083810 19787.21 551 537 105.3
B 5 14 707889 6718.53 551 537 105.3
C 15 214 268557 1797.81 642 648 149.0
C 0 10 210061 1405.27 642 648 149.0
C 3 233 174770 1168.45 642 648 149.0
D 8 230 2689163 17220.27 568 556 156.1
D 8 195 1352207 8657.19 568 556 156.1
D 13 249 361883 2314.26 568 556 156.1

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