ASTROSAT CZTI

Data Quality Report

Orbit 11010

Creation date: 2024-06-27T16:06:58.559503
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/AS1C03_004T01_9000001598_11010cztM0_level2.evt modeM0/AS1C03_004T01_9000001598_11010cztM0_level2_quad_clean.evt
Size (bytes)414,357,12070,513,920
Size395.2 MB 67.2 MB
Events in quadrant A3,992,016452,107
Events in quadrant B2,992,942531,914
Events in quadrant C2,323,846550,881
Events in quadrant D2,933,748283,344

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0201
B0202
C0200
D0202

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0237358807
B0188596806
C0148394566
D02470113839

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015036
B015050
C015054
D015044

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A467156812.160137%
B49081813.687857%
C5065190.375123%
D31371815.769844%

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 9325 5642 388 388 4.16% 6.88%
B 9326 5856 84 84 0.90% 1.43%
C 9326 6010 0 0 0.00% 0.00%
D 6539 3902 126 126 1.93% 3.23%

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 14 238 1714462 15920.46 525 514 107.7
A 8 5 246534 2285.22 525 514 107.7
A 15 174 4952 41.22 525 514 107.7
B 4 239 604659 5428.69 585 571 111.3
B 15 204 38510 340.94 585 571 111.3
B 0 214 25732 226.11 585 571 111.3
C 13 61 4390 27.7 594 596 137.0
C 12 4 3774 23.2 594 596 137.0
C 5 207 1880 9.38 594 596 137.0
D 1 52 862940 9954.85 353 342 86.7
D 11 129 241733 2785.78 353 342 86.7
D 8 195 162756 1874.35 353 342 86.7

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