ASTROSAT CZTI

Data Quality Report

Orbit 48205

Creation date: 2024-08-27T15:00:31.049433
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/AS1C09_004T05_9000006416_48205cztM0_level2.fits modeM0/AS1C09_004T05_9000006416_48205cztM0_level2_quad_clean.evt
Size (bytes)592,925,760107,219,520
Size565.5 MB 102.3 MB
Events in quadrant A8,977,745904,465
Events in quadrant B1,494,26459,373
Events in quadrant C3,773,824882,261
Events in quadrant D7,037,779809,087

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0325930
B091320
C0175700
D0267930

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A84512322.745237%
B8452844999.964505%
C8452180.212967%
D84524865.750118%

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 8451 8451 1 1 0.01% 0.01%
B 8451 8451 0 0 0.00% 0.00%
C 8452 8452 7 7 0.08% 0.08%
D 8452 8452 258 258 3.05% 3.05%

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 5151639 26437.13 930 911 194.8
A 0 31 127346 648.95 930 911 194.8
A 14 235 75510 382.89 930 911 194.8
B 2 177 1162298 79479.41 63 62 14.6
B 4 21 47561 3248.22 63 62 14.6
B 5 255 25276 1724.26 63 62 14.6
C 12 2 91457 413.67 930 930 218.8
C 0 207 45583 204.04 930 930 218.8
C 14 254 8970 36.74 930 930 218.8
D 2 165 2883236 12570.29 913 883 229.3
D 12 233 217334 943.97 913 883 229.3
D 12 128 117937 510.49 913 883 229.3

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