ASTROSAT CZTI

Data Quality Report

Orbit 02473

Creation date: 2024-06-27T14:18:16.419582
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/AS1G02_018T06_9000000370_02473cztM0_level2.evt modeM0/AS1G02_018T06_9000000370_02473cztM0_level2_quad_clean.evt
Size (bytes)421,392,96065,157,120
Size401.9 MB 62.1 MB
Events in quadrant A2,981,543374,584
Events in quadrant B3,103,968389,499
Events in quadrant C3,152,809383,305
Events in quadrant D3,078,730369,151

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132833
B0134312
C0137492
D0138922

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6535120.183627%
B6535280.428462%
C6535260.397858%
D6535420.642693%

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 7730 6536 0 0 0.00% 0.00%
B 7730 6536 0 0 0.00% 0.00%
C 7730 6536 11 11 0.14% 0.17%
D 7730 6536 26 26 0.34% 0.40%

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 12 194 8555 49.33 773 758 158.1
A 0 226 8180 46.96 773 758 158.1
A 14 63 5862 32.29 773 758 158.1
B 4 48 20472 130.58 793 775 150.8
B 4 200 13736 85.92 793 775 150.8
B 15 85 12418 77.18 793 775 150.8
C 14 223 156934 883.96 758 763 176.7
C 10 65 18866 102.47 758 763 176.7
C 13 61 6956 35.05 758 763 176.7
D 7 67 121881 683.36 744 728 177.3
D 10 102 49235 273.6 744 728 177.3
D 2 14 43483 241.16 744 728 177.3

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