ASTROSAT CZTI

Data Quality Report

Orbit 33069

Creation date: 2024-06-27T20:44:36.078402
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/AS1A11_080T01_9000004756_33069cztM0_level2.evt modeM0/AS1A11_080T01_9000004756_33069cztM0_level2_quad_clean.evt
Size (bytes)357,687,36051,586,560
Size341.1 MB 49.2 MB
Events in quadrant A1,656,030344,333
Events in quadrant B2,383,957330,970
Events in quadrant C2,003,263338,697
Events in quadrant D4,540,625289,275

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073221
B094031
C083261
D0161441

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A365330.082124%
B36532175.940323%
C3653501.368738%
D365373019.983575%

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 3653 3653 0 0 0.00% 0.00%
B 3653 3653 162 162 4.43% 4.43%
C 3653 3653 54 54 1.48% 1.48%
D 3653 3653 733 733 20.07% 20.07%

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 6816 73.36 424 417 87.2
A 13 6 5552 58.87 424 417 87.2
A 15 169 5371 56.8 424 417 87.2
B 5 172 589793 7352.08 410 401 80.2
B 0 245 63398 785.82 410 401 80.2
B 0 189 53643 664.14 410 401 80.2
C 7 221 312839 3284.11 406 410 95.1
C 0 10 71302 745.18 406 410 95.1
C 6 247 7112 70.45 406 410 95.1
D 7 223 1718806 16634.31 386 378 103.3
D 8 195 488661 4726.56 386 378 103.3
D 2 250 428891 4147.99 386 378 103.3

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