ASTROSAT CZTI

Data Quality Report

Orbit 10473

Creation date: 2024-06-27T15:59:39.365468
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/AS1A03_126T01_9000001512_10473cztM0_level2.evt modeM0/AS1A03_126T01_9000001512_10473cztM0_level2_quad_clean.evt
Size (bytes)1,368,322,560220,104,000
Size1.3 GB 209.9 MB
Events in quadrant A10,104,7141,369,275
Events in quadrant B10,218,5361,377,530
Events in quadrant C8,214,7721,366,494
Events in quadrant D11,672,1711,297,841

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03700
B03700
C03702
D03700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04168633
B04243164
C03730128
D04673179

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A182172381.306472%
B182055633.092557%
C182181090.598309%
D182063291.807097%

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 20330 18230 36 36 0.18% 0.20%
B 20330 18229 227 227 1.12% 1.25%
C 20330 18231 11 11 0.05% 0.06%
D 20330 18226 238 238 1.17% 1.31%

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 13 251 1037793 2375.92 2129 2075 435.9
A 3 80 312417 711.92 2129 2075 435.9
A 15 239 292874 667.09 2129 2075 435.9
B 4 239 1608170 3971.08 2118 2065 404.5
B 11 51 136406 332.16 2118 2065 404.5
B 0 214 108901 264.15 2118 2065 404.5
C 14 234 90185 182.57 2080 2091 482.5
C 13 61 15458 27.7 2080 2091 482.5
C 14 67 7728 11.68 2080 2091 482.5
D 1 52 1980651 4011.9 2056 2001 493.2
D 1 20 911488 1844.07 2056 2001 493.2
D 8 195 736568 1489.4 2056 2001 493.2

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