ASTROSAT CZTI

Data Quality Report

Orbit 44810

Creation date: 2024-06-27T23:06:51.931378
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/AS1A13_012T01_9000006024_44810cztM0_level2.fits modeM0/AS1A13_012T01_9000006024_44810cztM0_level2_quad_clean.evt
Size (bytes)526,904,64079,888,320
Size502.5 MB 76.2 MB
Events in quadrant A7,357,648447,000
Events in quadrant B2,644,880582,664
Events in quadrant C2,437,937553,007
Events in quadrant D6,657,854468,776

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0254780
B0113660
C0111120
D0235180

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5240134025.572519%
B5241591.125739%
C5241490.934936%
D52415029.578325%

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 5239 5239 1285 1285 24.53% 24.53%
B 5240 5240 18 18 0.34% 0.34%
C 5241 5241 32 32 0.61% 0.61%
D 5240 5240 469 469 8.95% 8.95%

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 15 223 3880866 35727.57 517 505 108.6
A 10 83 1294271 11912.07 517 505 108.6
A 13 248 81472 745.49 517 505 108.6
B 5 255 112915 965.53 578 559 116.4
B 0 219 55736 474.16 578 559 116.4
B 0 155 46838 397.7 578 559 116.4
C 1 3 127634 951.58 566 571 133.5
C 14 254 55452 411.0 566 571 133.5
C 12 2 18230 132.25 566 571 133.5
D 13 187 2526203 18500.64 541 524 136.5
D 11 241 510321 3734.27 541 524 136.5
D 1 52 460692 3370.74 541 524 136.5

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