ASTROSAT CZTI

Data Quality Report

Orbit 14710

Creation date: 2024-06-27T16:58:46.062826
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/AS1G08_057T09_9000002174_14710cztM0_level2.evt modeM0/AS1G08_057T09_9000002174_14710cztM0_level2_quad_clean.evt
Size (bytes)521,686,080113,929,920
Size497.5 MB 108.7 MB
Events in quadrant A3,693,604739,728
Events in quadrant B3,762,149726,898
Events in quadrant C4,276,730723,984
Events in quadrant D3,541,223721,412

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0161783
B0164512
C0175372
D0161692

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7745350.451904%
B7745690.890897%
C7745500.645578%
D7745250.322789%

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 8611 7749 2 2 0.02% 0.03%
B 8611 7749 5 5 0.06% 0.06%
C 8611 7749 1 1 0.01% 0.01%
D 8611 7748 11 11 0.13% 0.14%

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 8 15 52928 277.8 926 908 187.3
A 1 162 26923 138.93 926 908 187.3
A 11 29 25408 130.84 926 908 187.3
B 0 85 61050 339.6 922 898 177.1
B 0 214 28052 153.3 922 898 177.1
B 12 111 21058 113.82 922 898 177.1
C 3 233 689252 3258.24 907 910 211.3
C 14 234 24707 112.64 907 910 211.3
C 8 128 13383 59.04 907 910 211.3
D 9 1 32280 141.04 902 876 222.7
D 2 234 29990 130.75 902 876 222.7
D 13 122 28584 124.44 902 876 222.7

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