ASTROSAT CZTI

Data Quality Report

Orbit 20220804_T05_045T01_9000005268_level2

Creation date: 2024-11-08T13:30:09.984509
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/AS1T05_045T01_9000005268cztM0_level2.fits modeM0/AS1T05_045T01_9000005268cztM0_level2_quad_clean.evt
Size (bytes)459,377,28062,280,000
Size438.1 MB 59.4 MB
Events in quadrant A3,082,594375,118
Events in quadrant B4,227,731371,927
Events in quadrant C4,038,625366,672
Events in quadrant D5,165,644331,294

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0320
B0320
C0320
D0320

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0276220
B0334640
C0312770
D0402580

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02740
B02700
C02720
D02720

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A13244580.437934%
B131725634.274218%
C132181621.225601%
D131899867.475927%

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 7652 6311 0 0 0.00% 0.00%
B 7652 6311 275 275 3.59% 4.36%
C 7652 6311 45 45 0.59% 0.71%
D 7652 6310 403 403 5.27% 6.39%

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 10 83 256717 1731.24 727 713 147.9
A 13 6 12300 78.36 727 713 147.9
A 13 254 9926 62.3 727 713 147.9
B 5 172 1065194 7767.75 708 689 137.0
B 5 184 183152 1331.44 708 689 137.0
B 5 255 38141 273.29 708 689 137.0
C 0 10 746256 4498.18 704 708 165.7
C 15 214 275143 1655.77 704 708 165.7
C 14 254 215639 1296.76 704 708 165.7
D 13 249 837119 4982.84 686 668 167.9
D 2 249 719933 4284.75 686 668 167.9
D 2 250 545461 3245.4 686 668 167.9

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