ASTROSAT CZTI

Data Quality Report

Orbit 22710

Creation date: 2024-06-27T18:44:41.565187
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/AS1A08_007T01_9000003362_22710cztM0_level2.evt modeM0/AS1A08_007T01_9000003362_22710cztM0_level2_quad_clean.evt
Size (bytes)443,136,96094,363,200
Size422.6 MB 90.0 MB
Events in quadrant A3,146,933631,931
Events in quadrant B3,225,267632,556
Events in quadrant C3,207,314598,737
Events in quadrant D3,448,705590,812

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128901
B0131023
C0131531
D0139381

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5781510.882200%
B5780611.055363%
C57811011.747103%
D5781631.089777%

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 7126 5782 0 0 0.00% 0.00%
B 7125 5781 6 6 0.08% 0.10%
C 7126 5782 0 0 0.00% 0.00%
D 7126 5782 25 25 0.35% 0.43%

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 13 254 10766 62.34 814 800 159.9
A 0 226 7159 39.78 814 800 159.9
A 11 47 6932 38.36 814 800 159.9
B 4 216 26435 175.53 797 781 146.2
B 0 190 26222 174.07 797 781 146.2
B 12 16 24718 163.78 797 781 146.2
C 14 238 124425 699.22 773 780 176.8
C 10 22 71439 399.58 773 780 176.8
C 13 61 5347 25.83 773 780 176.8
D 12 233 174270 908.97 794 774 190.9
D 1 52 133668 696.25 794 774 190.9
D 7 238 39103 200.81 794 774 190.9

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