ASTROSAT CZTI

Data Quality Report

Orbit 05714

Creation date: 2024-06-27T14:58:16.466632
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_098T01_9000000736_05714cztM0_level2.evt modeM0/AS1A02_098T01_9000000736_05714cztM0_level2_quad_clean.evt
Size (bytes)443,030,40059,270,400
Size422.5 MB 56.5 MB
Events in quadrant A3,020,888336,601
Events in quadrant B3,602,911334,028
Events in quadrant C3,019,121343,436
Events in quadrant D3,333,557328,213

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133113
B0147972
C0133412
D0143032

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6479640.987807%
B64791662.562124%
C6479610.941503%
D64791031.589752%

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 7600 6480 0 0 0.00% 0.00%
B 7600 6480 85 85 1.12% 1.31%
C 7600 6480 0 0 0.00% 0.00%
D 7600 6480 27 27 0.36% 0.42%

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 7621 42.94 782 764 159.7
A 12 194 7474 42.01 782 764 159.7
A 0 50 3566 17.54 782 764 159.7
B 5 143 245563 1639.61 787 769 149.3
B 15 204 162763 1085.02 787 769 149.3
B 11 51 53277 351.69 787 769 149.3
C 8 128 13565 72.1 764 767 177.5
C 9 16 6887 34.48 764 767 177.5
C 8 112 6884 34.46 764 767 177.5
D 2 152 267812 1438.3 757 734 185.7
D 12 233 45005 238.41 757 734 185.7
D 2 14 38020 200.8 757 734 185.7

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