ASTROSAT CZTI

Data Quality Report

Orbit 13058

Creation date: 2024-06-27T16:35:52.985245
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_045T01_9000001920_13058cztM0_level2.evt modeM0/AS1G08_045T01_9000001920_13058cztM0_level2_quad_clean.evt
Size (bytes)512,303,04086,106,240
Size488.6 MB 82.1 MB
Events in quadrant A3,388,090555,515
Events in quadrant B5,382,807506,370
Events in quadrant C2,976,103562,612
Events in quadrant D3,331,884534,670

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01322
D01320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014316137
B020435192
C013312149
D014185140

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64221482.304578%
B6409103116.086753%
C6413861.341026%
D64251221.898833%

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 7313 6450 23 23 0.31% 0.36%
B 7310 6448 619 619 8.47% 9.60%
C 7312 6451 2 2 0.03% 0.03%
D 7314 6460 10 10 0.14% 0.15%

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 8 15 136809 861.24 772 756 158.0
A 12 189 82985 520.53 772 756 158.0
A 15 223 66121 413.77 772 756 158.0
B 4 239 2242295 16942.1 692 676 132.3
B 3 64 161168 1212.99 692 676 132.3
B 0 85 86026 645.07 692 676 132.3
C 14 234 12531 66.88 759 764 175.9
C 13 61 5405 26.38 759 764 175.9
C 12 4 3187 13.77 759 764 175.9
D 1 52 396296 2168.48 758 736 182.4
D 8 195 39953 214.99 758 736 182.4
D 2 234 19548 103.13 758 736 182.4

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