ASTROSAT CZTI

Data Quality Report

Orbit 43984

Creation date: 2024-06-27T22:57:57.574500
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_065T06_9000005924_43984cztM0_level2.fits modeM0/AS1A13_065T06_9000005924_43984cztM0_level2_quad_clean.evt
Size (bytes)636,805,44090,855,360
Size607.3 MB 86.6 MB
Events in quadrant A11,782,104143,377
Events in quadrant B3,706,429743,284
Events in quadrant C3,143,562733,281
Events in quadrant D4,407,991655,519

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0397833
B0157252
C0141812
D0177252

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6819563782.666080%
B68202994.384164%
C6820791.158358%
D68202653.885630%

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 7408 6818 2539 2539 34.27% 37.24%
B 7410 6822 126 126 1.70% 1.85%
C 7410 6822 3 3 0.04% 0.04%
D 7410 6822 153 153 2.06% 2.24%

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 15 223 10417170 216448.31 225 221 48.1
A 10 83 321228 6670.04 225 221 48.1
A 14 238 140027 2904.96 225 221 48.1
B 5 172 540681 3525.26 764 740 153.2
B 4 171 40763 261.31 764 740 153.2
B 4 173 27912 177.41 764 740 153.2
C 9 237 51028 275.07 770 774 182.7
C 14 254 50401 271.63 770 774 182.7
C 3 233 17025 88.95 770 774 182.7
D 1 52 635141 3276.49 764 742 193.6
D 7 80 297746 1533.94 764 742 193.6
D 10 118 96295 493.5 764 742 193.6

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