ASTROSAT CZTI

Data Quality Report

Orbit 43578

Creation date: 2024-06-27T22:53:23.739640
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/AS1A10_094T26_9000005882_43578cztM0_level2.fits modeM0/AS1A10_094T26_9000005882_43578cztM0_level2_quad_clean.evt
Size (bytes)187,608,96011,384,640
Size178.9 MB 10.9 MB
Events in quadrant A1,503,449112,125
Events in quadrant B762,672116,934
Events in quadrant C2,676,64432,429
Events in quadrant D1,919,9984,048

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A051890
B029690
C086590
D064150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A102315314.956012%
B1023333.225806%
C10231023100.000000%
D10231023100.000000%

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 1023 1023 142 142 13.88% 13.88%
B 1023 1023 17 17 1.66% 1.66%
C 1022 1022 1012 1012 99.02% 99.02%
D 1022 1022 379 379 37.08% 37.08%

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 15 222 788828 31736.06 108 106 24.9
A 10 83 130526 5247.75 108 106 24.9
A 15 223 62652 2516.68 108 106 24.9
B 4 206 156245 6527.29 112 109 23.9
B 0 199 38519 1605.74 112 109 23.9
B 0 230 36960 1540.56 112 109 23.9
C 15 174 1344068 133014.51 34 33 10.1
C 15 142 804803 79645.31 34 33 10.1
C 15 158 202282 20015.89 34 33 10.1
D 4 212 919008 144798.65 15 14 6.3
D 4 216 313503 49393.99 15 14 6.3
D 14 210 73249 11539.06 15 14 6.3

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