ASTROSAT CZTI

Data Quality Report

Orbit 29518

Creation date: 2024-06-27T20:04:55.685251
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_048T05_9000004250_29518cztM0_level2.evt modeM0/AS1A10_048T05_9000004250_29518cztM0_level2_quad_clean.evt
Size (bytes)826,888,32083,554,560
Size788.6 MB 79.7 MB
Events in quadrant A3,535,051535,128
Events in quadrant B3,562,599548,061
Events in quadrant C3,825,060531,352
Events in quadrant D13,636,450416,238

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149422
B0149342
C0153662
D0454762

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71532102.935831%
B71542193.061224%
C71542823.941851%
D7153325945.561303%

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 7403 7155 0 0 0.00% 0.00%
B 7404 7156 1 1 0.01% 0.01%
C 7404 7156 0 0 0.00% 0.00%
D 7403 7154 3328 3328 44.95% 46.52%

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 0 13 20462 105.53 911 891 185.5
A 13 254 13145 66.08 911 891 185.5
A 3 137 9398 45.87 911 891 185.5
B 0 190 23021 124.82 897 873 177.4
B 12 111 21548 116.52 897 873 177.4
B 11 111 19843 106.91 897 873 177.4
C 3 233 214955 1028.79 878 884 208.1
C 14 238 150192 717.55 878 884 208.1
C 2 114 17194 78.38 878 884 208.1
D 8 195 7789653 42153.82 765 742 184.8
D 7 238 1692383 9155.21 765 742 184.8
D 7 223 676698 3658.29 765 742 184.8

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