ASTROSAT CZTI

Data Quality Report

Orbit 13878

Creation date: 2024-06-27T16:47:30.993328
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/AS1G08_030T01_9000002044_13878cztM0_level2.evt modeM0/AS1G08_030T01_9000002044_13878cztM0_level2_quad_clean.evt
Size (bytes)489,562,56079,122,240
Size466.9 MB 75.5 MB
Events in quadrant A3,238,039490,121
Events in quadrant B3,386,857477,905
Events in quadrant C3,261,766498,391
Events in quadrant D4,504,584482,308

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137543
B0141702
C0136962
D0177662

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6411380.592731%
B6411530.826704%
C6411260.405553%
D64113545.521759%

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 7577 6412 0 0 0.00% 0.00%
B 7577 6412 6 6 0.08% 0.09%
C 7577 6412 0 0 0.00% 0.00%
D 7577 6412 262 262 3.46% 4.09%

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 4 2 9998 54.75 836 821 167.6
A 1 162 8452 45.53 836 821 167.6
A 0 226 7831 41.82 836 821 167.6
B 3 209 36914 230.96 829 810 156.3
B 4 80 18778 114.94 829 810 156.3
B 10 244 17206 104.89 829 810 156.3
C 3 233 60555 313.6 821 824 190.5
C 13 61 5882 26.56 821 824 190.5
C 3 202 1915 5.73 821 824 190.5
D 1 52 561440 2813.98 799 781 199.2
D 13 122 314615 1575.15 799 781 199.2
D 13 189 165852 828.5 799 781 199.2

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