ASTROSAT CZTI

Data Quality Report

Orbit 47043

Creation date: 2024-06-27T23:31:06.570879
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/AS1C09_005T01_9000006296_47043cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47043cztM0_level2_quad_clean.evt
Size (bytes)455,068,80099,224,640
Size434.0 MB 94.6 MB
Events in quadrant A5,933,240655,451
Events in quadrant B3,898,725654,409
Events in quadrant C2,785,394659,884
Events in quadrant D3,738,408594,862

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0218941
B0158221
C0130881
D0156401

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62983024.795173%
B62993856.112081%
C62991001.587554%
D62993305.238927%

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 6788 6300 1 1 0.01% 0.02%
B 6789 6301 109 109 1.61% 1.73%
C 6789 6301 4 4 0.06% 0.06%
D 6789 6301 139 139 2.05% 2.21%

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 10 83 3187754 22014.43 693 675 144.8
A 9 191 35166 238.24 693 675 144.8
A 0 243 11951 77.88 693 675 144.8
B 5 172 459925 3472.7 680 658 132.3
B 3 112 449916 3397.02 680 658 132.3
B 4 171 69417 519.91 680 658 132.3
C 14 254 63309 389.33 688 689 160.8
C 14 67 23873 144.14 688 689 160.8
C 12 250 8481 48.45 688 689 160.8
D 1 52 567583 3328.85 680 656 170.3
D 2 249 164043 959.37 680 656 170.3
D 13 249 90524 527.68 680 656 170.3

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