ASTROSAT CZTI

Data Quality Report

Orbit 44319

Creation date: 2024-06-27T23:02:05.390431
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_059T01_9000005990_44319cztM0_level2.fits modeM0/AS1A13_059T01_9000005990_44319cztM0_level2_quad_clean.evt
Size (bytes)621,446,400126,034,560
Size592.7 MB 120.2 MB
Events in quadrant A5,599,149873,518
Events in quadrant B6,338,651778,908
Events in quadrant C3,869,234858,545
Events in quadrant D6,573,490746,996

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229171
B0244341
C0174441
D0252231

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80371561.941023%
B8037109013.562274%
C8037780.970511%
D80376468.037825%

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 8452 8039 10 10 0.12% 0.12%
B 8452 8039 791 791 9.36% 9.84%
C 8452 8039 36 36 0.43% 0.45%
D 8452 8039 462 462 5.47% 5.75%

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 1846667 9546.8 920 897 193.3
A 15 223 65096 332.05 920 897 193.3
A 7 3 58310 296.95 920 897 193.3
B 5 172 2368910 14086.9 850 823 168.1
B 5 255 356179 2113.89 850 823 168.1
B 5 235 67265 395.24 850 823 168.1
C 14 254 255035 1182.11 906 910 215.0
C 1 3 26520 119.13 906 910 215.0
C 3 233 21516 95.85 906 910 215.0
D 13 249 651523 2909.44 882 854 223.6
D 1 52 370170 1651.38 882 854 223.6
D 13 171 367863 1641.07 882 854 223.6

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