ASTROSAT CZTI

Data Quality Report

Orbit 02943

Creation date: 2024-06-27T14:22:32.379228
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/AS1P01_999T99_9000000414_02943cztM0_level2.evt modeM0/AS1P01_999T99_9000000414_02943cztM0_level2_quad_clean.evt
Size (bytes)518,641,92035,498,880
Size494.6 MB 33.9 MB
Events in quadrant A2,466,835178,129
Events in quadrant B2,636,521179,852
Events in quadrant C2,373,019191,074
Events in quadrant D7,883,467166,247

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110833
B0115282
C0109242
D0270032

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A511860.117233%
B5118490.957405%
C5118641.250488%
D5118185836.303243%

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 7272 5119 2 2 0.03% 0.04%
B 7272 5119 40 40 0.55% 0.78%
C 7272 5119 16 16 0.22% 0.31%
D 7272 5119 1515 1515 20.83% 29.60%

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 381764 3591.09 513 502 106.2
A 12 133 50376 469.76 513 502 106.2
A 13 251 15977 145.76 513 502 106.2
B 3 27 224245 2171.0 523 511 103.1
B 3 175 182979 1770.57 523 511 103.1
B 8 3 73966 712.77 523 511 103.1
C 9 204 123766 1013.64 509 512 121.6
C 8 161 109069 892.78 509 512 121.6
C 6 80 44512 361.86 509 512 121.6
D 15 50 2027400 18376.93 437 428 110.3
D 15 194 1287751 11671.12 437 428 110.3
D 14 97 1109330 10053.52 437 428 110.3

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
Veto Counter