ASTROSAT CZTI

Data Quality Report

Orbit 04417

Creation date: 2024-06-27T14:41:41.699353
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/AS1G05_230T04_9000000550_04417cztM0_level2.evt modeM0/AS1G05_230T04_9000000550_04417cztM0_level2_quad_clean.evt
Size (bytes)591,361,920100,808,640
Size564.0 MB 96.1 MB
Events in quadrant A3,023,938660,903
Events in quadrant B4,144,211648,863
Events in quadrant C3,275,880660,646
Events in quadrant D7,000,595604,247

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139762
B0169111
C0145411
D0257021

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6864721.048951%
B68641832.666084%
C6864550.801282%
D686490213.141026%

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 7674 6865 6 6 0.08% 0.09%
B 7674 6865 95 95 1.24% 1.38%
C 7674 6865 2 2 0.03% 0.03%
D 7674 6865 815 815 10.62% 11.87%

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 14 111 16572 100.6 774 755 157.2
A 0 50 10507 62.03 774 755 157.2
A 12 194 8055 46.43 774 755 157.2
B 14 167 993649 6831.03 771 751 145.4
B 8 3 48867 331.03 771 751 145.4
B 0 231 47794 323.65 771 751 145.4
C 9 16 220935 1270.81 749 749 173.3
C 14 48 95277 545.57 749 749 173.3
C 9 247 31462 177.26 749 749 173.3
D 13 114 3688862 21006.24 727 705 175.6
D 12 233 174920 992.25 727 705 175.6
D 8 112 107293 607.08 727 705 175.6

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