ASTROSAT CZTI

Data Quality Report

Orbit 10648

Creation date: 2024-06-27T16:01:58.466503
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/AS1T01_191T01_9000001536_10648cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10648cztM0_level2_quad_clean.evt
Size (bytes)449,925,12092,321,280
Size429.1 MB 88.0 MB
Events in quadrant A2,787,063616,831
Events in quadrant B4,102,836586,875
Events in quadrant C2,843,199607,082
Events in quadrant D3,490,784571,614

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122312
B0160091
C0124541
D0145891

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5911530.896633%
B59113475.870411%
C5911320.541364%
D59111933.265099%

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 6956 5912 0 0 0.00% 0.00%
B 6956 5912 202 202 2.90% 3.42%
C 6956 5912 6 6 0.09% 0.10%
D 6956 5912 131 131 1.88% 2.22%

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 1 162 11103 69.46 714 702 149.7
A 15 239 7525 45.57 714 702 149.7
A 0 226 6588 39.31 714 702 149.7
B 4 239 1281062 9449.82 699 685 135.5
B 0 214 28223 203.24 699 685 135.5
B 0 168 15939 112.58 699 685 135.5
C 4 254 140431 870.71 684 693 160.5
C 14 234 18557 111.31 684 693 160.5
C 4 175 9647 55.79 684 693 160.5
D 10 199 225660 1352.35 677 660 166.4
D 12 233 190207 1139.26 677 660 166.4
D 2 14 133143 796.28 677 660 166.4

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