ASTROSAT CZTI

Data Quality Report

Orbit 18213

Creation date: 2024-06-27T17:46:50.742843
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/AS1T03_003T01_9000002712_18213cztM0_level2.evt modeM0/AS1T03_003T01_9000002712_18213cztM0_level2_quad_clean.evt
Size (bytes)668,966,40086,319,360
Size638.0 MB 82.3 MB
Events in quadrant A4,966,630529,060
Events in quadrant B4,086,652533,327
Events in quadrant C3,887,974516,955
Events in quadrant D6,782,752484,769

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200362
B0171582
C0165662
D0254843

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79054816.084756%
B79051972.492094%
C79052182.757748%
D7904104513.221154%

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 8710 7908 182 182 2.09% 2.30%
B 8710 7908 5 5 0.06% 0.06%
C 8710 7908 0 0 0.00% 0.00%
D 8708 7906 771 771 8.85% 9.75%

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 15 174 1168687 5863.97 981 960 199.1
A 11 47 17569 83.41 981 960 199.1
A 0 226 8652 38.63 981 960 199.1
B 7 220 98591 511.28 986 961 191.0
B 3 64 30755 156.03 986 961 191.0
B 0 244 23582 118.46 986 961 191.0
C 14 238 145925 648.5 948 950 223.6
C 3 233 39879 174.13 948 950 223.6
C 13 61 6983 26.98 948 950 223.6
D 7 238 2113193 9365.33 913 884 225.5
D 5 222 918593 4068.84 913 884 225.5
D 5 51 111962 492.49 913 884 225.5

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