ASTROSAT CZTI

Data Quality Report

Orbit 16394

Creation date: 2024-06-27T17:22:03.225828
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_069T02_9000002422_16394cztM0_level2.evt modeM0/AS1A05_069T02_9000002422_16394cztM0_level2_quad_clean.evt
Size (bytes)482,855,04092,975,040
Size460.5 MB 88.7 MB
Events in quadrant A3,401,193596,608
Events in quadrant B3,845,026602,461
Events in quadrant C3,402,396581,369
Events in quadrant D3,513,826562,049

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144963
B0158492
C0145632
D0150652

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6785490.722181%
B67851382.033898%
C6785821.208548%
D6785681.002211%

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 7701 6787 9 9 0.12% 0.13%
B 7701 6787 89 89 1.16% 1.31%
C 7701 6787 0 0 0.00% 0.00%
D 7701 6787 27 27 0.35% 0.40%

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 9 143 100643 608.99 808 790 164.0
A 15 174 98803 597.77 808 790 164.0
A 15 223 73324 442.38 808 790 164.0
B 10 16 330609 2134.23 808 786 154.5
B 0 189 117512 755.31 808 786 154.5
B 3 209 99833 640.91 808 786 154.5
C 3 233 224625 1223.1 780 784 183.0
C 14 238 121800 661.25 780 784 183.0
C 7 247 9803 49.28 780 784 183.0
D 12 110 283351 1463.42 789 765 193.1
D 10 70 93649 481.01 789 765 193.1
D 1 52 41732 212.15 789 765 193.1

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