ASTROSAT CZTI

Data Quality Report

Orbit 06123

Creation date: 2024-06-27T15:03:03.546775
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_104T01_9000000794_06123cztM0_level2.evt modeM0/AS1A02_104T01_9000000794_06123cztM0_level2_quad_clean.evt
Size (bytes)683,167,68095,581,440
Size651.5 MB 91.2 MB
Events in quadrant A9,487,534568,673
Events in quadrant B3,669,254640,346
Events in quadrant C3,331,152632,443
Events in quadrant D3,754,041590,905

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03280510
B0152752
C0142874
D0157832

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6617169325.585613%
B66181812.734965%
C6617650.982318%
D66181962.961620%

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 9263 6619 1218 1218 13.15% 18.40%
B 9263 6620 48 48 0.52% 0.73%
C 9263 6620 0 0 0.00% 0.00%
D 9263 6620 107 107 1.16% 1.62%

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 6454549 39786.35 782 765 162.2
A 3 1 9830 55.88 782 765 162.2
A 0 226 7580 42.01 782 765 162.2
B 3 64 292153 1784.93 843 822 163.2
B 4 48 33572 200.65 843 822 163.2
B 4 81 19870 116.7 843 822 163.2
C 9 68 99348 510.94 822 826 192.8
C 9 54 6741 30.68 822 826 192.8
C 13 61 6504 29.45 822 826 192.8
D 13 169 286504 1436.45 806 780 198.9
D 2 14 93141 464.34 806 780 198.9
D 2 33 77310 384.75 806 780 198.9

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