ASTROSAT CZTI

Data Quality Report

Orbit 29032

Creation date: 2024-06-27T19:59:25.984421
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/AS1A10_123T02_9000004160_29032cztM0_level2.evt modeM0/AS1A10_123T02_9000004160_29032cztM0_level2_quad_clean.evt
Size (bytes)545,771,52092,505,600
Size520.5 MB 88.2 MB
Events in quadrant A3,354,566599,735
Events in quadrant B3,422,107614,533
Events in quadrant C4,073,122574,057
Events in quadrant D5,220,946542,134

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144422
B0146022
C0166663
D0201062

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6760931.375740%
B67611001.479071%
C67601832.707101%
D67604116.079882%

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 8696 6762 2 2 0.02% 0.03%
B 8697 6763 0 0 0.00% 0.00%
C 8696 6762 0 0 0.00% 0.00%
D 8696 6762 277 277 3.19% 4.10%

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 1 113 17211 94.04 865 847 174.0
A 13 254 10062 52.96 865 847 174.0
A 3 137 8840 45.93 865 847 174.0
B 10 245 35178 210.2 858 838 163.4
B 12 111 20305 119.16 858 838 163.4
B 11 111 18789 109.88 858 838 163.4
C 3 233 685276 3547.68 825 829 192.9
C 14 238 132137 680.61 825 829 192.9
C 2 16 26657 133.87 825 829 192.9
D 1 52 1388266 7099.48 822 799 195.4
D 7 80 404328 2064.8 822 799 195.4
D 8 195 289958 1479.59 822 799 195.4

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