ASTROSAT CZTI

Data Quality Report

Orbit 47458

Creation date: 2024-07-07T20:36:52.049569
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_089T01_9000006330_47458cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47458cztM0_level2_quad_clean.evt
Size (bytes)544,734,72096,626,880
Size519.5 MB 92.2 MB
Events in quadrant A7,065,049639,166
Events in quadrant B3,259,183673,803
Events in quadrant C2,654,502654,194
Events in quadrant D6,722,830540,750

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0253781
B0137841
C0122432
D0241761

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59784006.691201%
B59791482.475330%
C5978350.585480%
D597879313.265306%

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 7063 5979 122 122 1.73% 2.04%
B 7064 5980 46 46 0.65% 0.77%
C 7063 5979 0 0 0.00% 0.00%
D 7063 5979 681 681 9.64% 11.39%

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 3589216 25746.9 667 653 139.4
A 9 191 518714 3716.94 667 653 139.4
A 14 235 336894 2412.43 667 653 139.4
B 5 32 329589 2456.75 673 652 133.9
B 0 198 89909 666.64 673 652 133.9
B 0 190 52512 387.33 673 652 133.9
C 12 250 13538 81.44 669 671 158.0
C 3 233 10878 64.6 669 671 158.0
C 14 254 10231 60.51 669 671 158.0
D 6 112 2305690 14343.59 638 620 160.7
D 2 249 605500 3763.94 638 620 160.7
D 2 165 373161 2318.18 638 620 160.7

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