ASTROSAT CZTI

Data Quality Report

Orbit 33380

Creation date: 2024-06-27T20:48:11.901074
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/AS1A10_064T02_9000004788_33380cztM0_level2.evt modeM0/AS1A10_064T02_9000004788_33380cztM0_level2_quad_clean.evt
Size (bytes)437,414,40072,639,360
Size417.2 MB 69.3 MB
Events in quadrant A2,535,690470,047
Events in quadrant B2,813,979483,009
Events in quadrant C3,036,613458,592
Events in quadrant D4,513,891429,621

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0104393
B0112992
C0119702
D0170702

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A510870.137040%
B5108360.704777%
C5108561.096319%
D51082665.207518%

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 7230 5109 0 0 0.00% 0.00%
B 7230 5109 22 22 0.30% 0.43%
C 7230 5109 59 59 0.82% 1.15%
D 7230 5108 247 247 3.42% 4.84%

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 15 169 30939 237.34 647 638 127.7
A 13 254 7993 57.61 647 638 127.7
A 3 137 5669 39.41 647 638 127.7
B 0 219 119807 981.08 643 628 121.5
B 5 172 95933 784.55 643 628 121.5
B 5 200 28553 229.88 643 628 121.5
C 15 214 223278 1566.05 623 630 142.2
C 0 10 215574 1511.87 623 630 142.2
C 15 208 88639 619.03 623 630 142.2
D 8 195 598784 3953.82 614 596 151.3
D 1 52 444783 2935.93 614 596 151.3
D 12 218 292679 1930.57 614 596 151.3

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