ASTROSAT CZTI

Data Quality Report

Orbit 08094

Creation date: 2024-06-27T15:27:52.832715
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_055T01_9000001114_08094cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08094cztM0_level2_quad_clean.evt
Size (bytes)486,794,880100,062,720
Size464.2 MB 95.4 MB
Events in quadrant A3,250,445623,656
Events in quadrant B3,440,039645,294
Events in quadrant C3,357,684652,558
Events in quadrant D4,209,173611,456

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148533
B0152062
C0149062
D0176542

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7137220.308253%
B7137821.148942%
C7137290.406333%
D71372163.026482%

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 7687 7138 0 0 0.00% 0.00%
B 7687 7138 14 14 0.18% 0.20%
C 7687 7138 0 0 0.00% 0.00%
D 7687 7138 175 175 2.28% 2.45%

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 0 226 7973 41.39 843 825 172.7
A 12 194 7485 38.56 843 825 172.7
A 13 251 4212 19.61 843 825 172.7
B 10 16 78461 473.89 852 831 163.8
B 11 51 30810 183.01 852 831 163.8
B 0 214 22822 134.24 852 831 163.8
C 1 16 97378 495.52 836 838 194.8
C 13 61 6381 28.45 836 838 194.8
C 3 202 2118 6.57 836 838 194.8
D 14 34 516767 2395.43 813 791 215.4
D 1 52 398615 1846.91 813 791 215.4
D 12 221 55097 252.12 813 791 215.4

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