ASTROSAT CZTI

Data Quality Report

Orbit 48369

Creation date: 2024-09-13T11:43:16.311908
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_029T01_9000006426_48369cztM0_level2.fits modeM0/AS1A13_029T01_9000006426_48369cztM0_level2_quad_clean.evt
Size (bytes)70,637,76015,137,280
Size67.4 MB 14.4 MB
Events in quadrant A1,129,31697,247
Events in quadrant B512,90199,943
Events in quadrant C413,37497,013
Events in quadrant D481,89990,279

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A039600
B021360
C019120
D020510

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A953313.252886%
B952121.260504%
C95310.104932%
D95370.734523%

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 953 953 24 24 2.52% 2.52%
B 952 952 9 9 0.95% 0.95%
C 953 953 0 0 0.00% 0.00%
D 953 953 8 8 0.84% 0.84%

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 650708 25792.76 107 104 25.2
A 13 248 64065 2535.69 107 104 25.2
A 13 254 2237 84.56 107 104 25.2
B 0 198 28273 1206.03 106 103 23.4
B 0 186 24854 1059.66 106 103 23.4
B 5 171 21427 912.94 106 103 23.4
C 12 249 5380 197.65 104 104 26.7
C 15 208 1204 41.21 104 104 26.7
C 13 61 719 23.04 104 104 26.7
D 2 120 43103 1491.64 105 100 28.8
D 5 171 15059 518.88 105 100 28.8
D 2 233 6608 225.74 105 100 28.8

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