ASTROSAT CZTI

Data Quality Report

Orbit 06731

Creation date: 2024-06-27T15:10:53.840370
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/AS1C02_003T01_9000000924_06731cztM0_level2.evt modeM0/AS1C02_003T01_9000000924_06731cztM0_level2_quad_clean.evt
Size (bytes)438,304,320104,970,240
Size418.0 MB 100.1 MB
Events in quadrant A3,144,075687,362
Events in quadrant B3,204,701704,379
Events in quadrant C3,121,340674,470
Events in quadrant D3,344,156641,555

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139943
B0140902
C0140372
D0148022

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6751831.229447%
B67511011.496075%
C6751650.962820%
D6751721.066509%

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 9306 6752 0 0 0.00% 0.00%
B 9306 6752 0 0 0.00% 0.00%
C 9306 6752 0 0 0.00% 0.00%
D 9306 6752 33 33 0.35% 0.49%

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 44883 271.12 798 783 162.7
A 13 251 15433 90.07 798 783 162.7
A 14 111 10801 61.59 798 783 162.7
B 4 81 34447 219.6 810 791 153.3
B 12 111 15744 97.57 810 791 153.3
B 0 236 15011 92.78 810 791 153.3
C 12 16 70610 388.01 777 781 180.0
C 10 22 10996 56.76 777 781 180.0
C 13 61 6073 29.41 777 781 180.0
D 2 152 126419 674.71 765 743 186.3
D 2 33 72291 384.11 765 743 186.3
D 8 195 68372 363.07 765 743 186.3

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