ASTROSAT CZTI

Data Quality Report

Orbit 44349

Creation date: 2024-06-27T23:02:31.584594
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_008T06_9000005994_44349cztM0_level2.fits modeM0/AS1A13_008T06_9000005994_44349cztM0_level2_quad_clean.evt
Size (bytes)666,515,520128,024,640
Size635.6 MB 122.1 MB
Events in quadrant A8,136,902803,728
Events in quadrant B4,588,713890,715
Events in quadrant C4,541,414856,563
Events in quadrant D6,772,615758,160

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0304191
B0191341
C0193771
D0257824

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A816885710.492165%
B81691922.350349%
C81691441.762762%
D81685767.051910%

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 8183 8169 515 515 6.29% 6.30%
B 8184 8170 47 47 0.57% 0.58%
C 8184 8170 112 112 1.37% 1.37%
D 8183 8169 531 531 6.49% 6.50%

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 1807418 9493.77 911 891 190.3
A 10 83 1734395 9110.02 911 891 190.3
A 13 248 1016204 5335.73 911 891 190.3
B 0 190 189183 992.91 946 917 189.6
B 0 219 180653 947.92 946 917 189.6
B 4 170 158922 833.31 946 917 189.6
C 14 254 709509 3198.28 927 932 221.5
C 14 96 88273 394.23 927 932 221.5
C 15 208 61220 272.12 927 932 221.5
D 13 249 1091720 4781.73 906 878 228.1
D 5 235 638147 2793.48 906 878 228.1
D 13 171 216320 944.39 906 878 228.1

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