ASTROSAT CZTI

Data Quality Report

Orbit 06630

Creation date: 2024-06-27T15:09:30.460946
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_082T01_9000000898_06630cztM0_level2.evt modeM0/AS1A02_082T01_9000000898_06630cztM0_level2_quad_clean.evt
Size (bytes)492,505,92087,877,440
Size469.7 MB 83.8 MB
Events in quadrant A3,055,384560,575
Events in quadrant B3,259,558569,522
Events in quadrant C2,998,242556,851
Events in quadrant D5,165,302524,840

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133563
B0137242
C0132482
D0199172

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6445360.558573%
B6445470.729247%
C6445240.372382%
D64452513.894492%

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 7690 6446 0 0 0.00% 0.00%
B 7690 6446 1 1 0.01% 0.02%
C 7690 6446 0 0 0.00% 0.00%
D 7690 6446 180 180 2.34% 2.79%

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 63184 399.96 777 760 156.1
A 0 226 7208 41.31 777 760 156.1
A 12 194 7020 40.11 777 760 156.1
B 0 219 123313 818.44 787 768 149.7
B 0 198 54718 360.32 787 768 149.7
B 12 111 15986 101.64 787 768 149.7
C 12 4 9832 50.95 766 771 177.9
C 13 61 6113 30.04 766 771 177.9
C 3 202 2026 7.06 766 771 177.9
D 8 195 1416061 7788.44 746 723 181.7
D 2 33 810278 4454.88 746 723 181.7
D 2 14 81519 444.61 746 723 181.7

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