ASTROSAT CZTI

Data Quality Report

Orbit 43353

Creation date: 2024-06-27T22:50:55.983354
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/AS1A09_143T01_9000005870_43353cztM0_level2.fits modeM0/AS1A09_143T01_9000005870_43353cztM0_level2_quad_clean.evt
Size (bytes)417,205,44090,601,920
Size397.9 MB 86.4 MB
Events in quadrant A3,274,606622,643
Events in quadrant B3,013,824630,018
Events in quadrant C2,667,054608,648
Events in quadrant D6,044,503483,099

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132302
B0128412
C0115262
D0218682

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5702360.631357%
B5702671.175026%
C570240.070151%
D570298317.239565%

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 7315 5703 20 20 0.27% 0.35%
B 7315 5703 48 48 0.66% 0.84%
C 7315 5703 0 0 0.00% 0.00%
D 7314 5702 878 878 12.00% 15.40%

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 10 83 626868 4818.41 623 610 130.0
A 13 248 146020 1118.78 623 610 130.0
A 15 237 66538 507.25 623 610 130.0
B 0 189 194026 1613.49 619 602 119.9
B 5 172 150472 1250.17 619 602 119.9
B 0 190 53882 444.44 619 602 119.9
C 15 214 235908 1634.4 615 619 144.0
C 3 233 11781 77.53 615 619 144.0
C 15 111 7973 51.08 615 619 144.0
D 1 52 2163721 15616.14 565 549 138.5
D 13 249 1391086 10038.41 565 549 138.5
D 12 233 138688 997.24 565 549 138.5

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