ASTROSAT CZTI

Data Quality Report

Orbit 22126

Creation date: 2024-06-27T18:36:55.815618
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/AS1A07_007T04_9000003276_22126cztM0_level2.evt modeM0/AS1A07_007T04_9000003276_22126cztM0_level2_quad_clean.evt
Size (bytes)221,207,04036,167,040
Size211.0 MB 34.5 MB
Events in quadrant A1,401,047218,180
Events in quadrant B1,540,618220,163
Events in quadrant C1,453,072214,533
Events in quadrant D2,078,642207,724

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B040
C040
D040

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A066171
B068751
C066671
D084521

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0660
B0660
C0660
D0660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A329630.091019%
B3296200.606796%
C3296160.485437%
D3296682.063107%

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 3296 3296 0 0 0.00% 0.00%
B 3296 3296 14 14 0.42% 0.42%
C 3296 3296 0 0 0.00% 0.00%
D 3296 3296 74 74 2.25% 2.25%

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 13 254 6422 81.64 362 355 74.3
A 3 137 3093 36.84 362 355 74.3
A 0 226 3034 36.05 362 355 74.3
B 3 64 61720 860.31 365 354 71.3
B 10 246 20248 278.9 365 354 71.3
B 0 230 11080 150.37 365 354 71.3
C 14 238 56114 663.25 354 357 84.1
C 10 22 12620 145.87 354 357 84.1
C 13 61 2410 24.42 354 357 84.1
D 2 133 415871 4801.9 349 338 86.5
D 1 52 173575 2001.93 349 338 86.5
D 11 176 110185 1269.39 349 338 86.5

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