ASTROSAT CZTI

Data Quality Report

Orbit 14150

Creation date: 2024-06-27T16:51:02.777671
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/AS1A04_224T05_9000002088_14150cztM0_level2.evt modeM0/AS1A04_224T05_9000002088_14150cztM0_level2_quad_clean.evt
Size (bytes)26,591,0405,575,680
Size25.4 MB 5.3 MB
Events in quadrant A193,97632,456
Events in quadrant B185,15738,382
Events in quadrant C198,31641,266
Events in quadrant D196,50519,830

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061125266
B060475166
C060525174
D089458159

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A011
B111
C1-1-1
D1-1-1

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A06048
B06155
C06048
D06052

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A41700.000000%
B44100.000000%
C43900.000000%
D29810.335570%

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 1868 706 0 0 0.00% 0.00%
B 1883 701 0 0 0.00% 0.00%
C 1860 704 0 0 0.00% 0.00%
D 1792 515 0 0 0.00% 0.00%

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 16140 1426.53 44 43 11.3
A 12 189 4723 414.74 44 43 11.3
A 12 96 1328 113.88 44 43 11.3
B 0 214 2585 226.51 46 45 11.2
B 12 111 1123 96.13 46 45 11.2
B 11 111 939 79.72 46 45 11.2
C 3 233 20229 1595.91 45 45 12.6
C 13 61 319 21.66 45 45 12.6
C 7 247 118 5.77 45 45 12.6
D 1 52 76246 8251.91 31 30 9.2
D 13 104 1334 141.18 31 30 9.2
D 2 234 1152 121.48 31 30 9.2

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