ASTROSAT CZTI

Data Quality Report

Orbit 08534

Creation date: 2024-06-27T15:33:57.869081
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/AS1G07_060T01_9000001200_08534cztM0_level2.evt modeM0/AS1G07_060T01_9000001200_08534cztM0_level2_quad_clean.evt
Size (bytes)1,077,088,320216,636,480
Size1.0 GB 206.6 MB
Events in quadrant A7,465,6131,366,863
Events in quadrant B8,647,2181,361,381
Events in quadrant C7,382,4931,357,573
Events in quadrant D7,987,0881,317,488

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03400
B03400
C03400
D03400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0343164
B0372283
C0341907
D03636910

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A168041670.993811%
B168043402.023328%
C168021350.803476%
D168032601.547343%

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 18914 16805 1 1 0.01% 0.01%
B 18914 16805 156 156 0.82% 0.93%
C 18914 16806 0 0 0.00% 0.00%
D 18914 16805 77 77 0.41% 0.46%

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 5 16 26525 62.3 1929 1885 395.5
A 8 5 21693 50.09 1929 1885 395.5
A 0 226 17876 40.43 1929 1885 395.5
B 10 16 881425 2397.73 1922 1876 366.8
B 0 214 113084 303.16 1922 1876 366.8
B 10 252 63016 166.67 1922 1876 366.8
C 13 61 14022 27.63 1886 1892 439.1
C 8 222 10657 19.96 1886 1892 439.1
C 8 128 9637 17.64 1886 1892 439.1
D 1 52 431535 946.46 1865 1821 454.0
D 14 34 117424 254.62 1865 1821 454.0
D 13 122 72433 155.53 1865 1821 454.0

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