ASTROSAT CZTI

Data Quality Report

Orbit 06074

Creation date: 2024-06-27T15:02:35.041314
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/AS1G06_132T01_9000000784_06074cztM0_level2.evt modeM0/AS1G06_132T01_9000000784_06074cztM0_level2_quad_clean.evt
Size (bytes)452,721,600100,336,320
Size431.7 MB 95.7 MB
Events in quadrant A3,668,158644,845
Events in quadrant B3,367,160652,306
Events in quadrant C2,882,127650,352
Events in quadrant D3,327,015614,014

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016573652
B015284607
C014476567
D015784710

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01446
B01442
C01448
D014410

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68441291.884863%
B68561051.531505%
C6868510.742574%
D68262083.047173%

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 7990 7098 77 77 0.96% 1.08%
B 7990 7097 28 28 0.35% 0.39%
C 7990 7109 4 4 0.05% 0.06%
D 7990 7095 27 27 0.34% 0.38%

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 31 684904 4425.11 753 735 154.6
A 3 1 25655 161.18 753 735 154.6
A 14 111 22300 139.48 753 735 154.6
B 3 64 129069 868.27 762 743 147.8
B 0 214 79245 531.16 762 743 147.8
B 4 81 72172 483.3 762 743 147.8
C 9 54 16011 89.37 729 731 171.0
C 8 128 7172 37.67 729 731 171.0
C 13 61 5936 30.44 729 731 171.0
D 13 169 301561 1687.49 718 695 178.3
D 13 61 58513 324.29 718 695 178.3
D 13 44 49616 274.39 718 695 178.3

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