ASTROSAT CZTI

Data Quality Report

Orbit 01390

Creation date: 2024-06-27T14:11:58.278296
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/AS1G04_014T02_9000000232_01390cztM0_level2.evt modeM0/AS1G04_014T02_9000000232_01390cztM0_level2_quad_clean.evt
Size (bytes)1,172,263,680103,533,120
Size1.1 GB 98.7 MB
Events in quadrant A10,951,444646,685
Events in quadrant B8,732,812687,503
Events in quadrant C7,690,513681,042
Events in quadrant D7,686,554655,398

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0373093
B0306672
C0276072
D0276052

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0230

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66655688.522131%
B6665751.125281%
C666540.060015%
D66651071.605401%

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 7930 6666 1533 1533 19.33% 23.00%
B 7930 6666 412 412 5.20% 6.18%
C 7930 6666 170 170 2.14% 2.55%
D 7930 6666 359 359 4.53% 5.39%

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 15 127 3524477 7655.05 1926 1946 460.2
A 4 32 14566 27.43 1926 1946 460.2
A 13 17 10493 18.57 1926 1946 460.2
B 8 4 439785 906.32 2067 2077 483.0
B 5 191 179329 367.02 2067 2077 483.0
B 6 53 76587 154.28 2067 2077 483.0
C 15 241 235533 447.16 1892 1958 522.4
C 7 220 22150 38.65 1892 1958 522.4
C 3 111 18917 32.47 1892 1958 522.4
D 13 73 417954 779.35 1798 1849 533.9
D 2 16 264825 492.54 1798 1849 533.9
D 1 20 113528 209.17 1798 1849 533.9

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