ASTROSAT CZTI

Data Quality Report

Orbit 06603

Creation date: 2024-06-27T15:09:18.671837
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/AS1A02_170T02_9000000892_06603cztM0_level2.evt modeM0/AS1A02_170T02_9000000892_06603cztM0_level2_quad_clean.evt
Size (bytes)581,702,40078,860,160
Size554.8 MB 75.2 MB
Events in quadrant A2,942,309496,744
Events in quadrant B3,531,879499,902
Events in quadrant C3,460,261491,660
Events in quadrant D7,228,741432,525

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01404
B01382
C01382
D01382

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013904266
B015367250
C015360292
D026683486

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66931131.688331%
B66962623.912784%
C66931091.628567%
D668884012.559809%

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 7337 6702 0 0 0.00% 0.00%
B 7344 6711 96 96 1.31% 1.43%
C 7330 6707 26 26 0.35% 0.39%
D 7301 6698 651 651 8.92% 9.72%

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 8 15 13975 85.78 759 741 154.3
A 0 226 7232 42.07 759 741 154.3
A 12 194 6996 40.54 759 741 154.3
B 4 81 264623 1829.76 760 743 144.2
B 4 48 142549 983.29 760 743 144.2
B 0 219 103456 712.22 760 743 144.2
C 9 247 549635 3214.01 741 741 170.8
C 9 54 11579 63.46 741 741 170.8
C 1 16 6389 33.07 741 741 170.8
D 8 195 3289621 18922.44 706 684 173.8
D 2 63 596565 3428.32 706 684 173.8
D 2 152 199802 1145.6 706 684 173.8

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