ASTROSAT CZTI

Data Quality Report

Orbit 09277

Creation date: 2024-06-27T15:43:48.418787
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/AS1G07_077T01_9000001306_09277cztM0_level2.evt modeM0/AS1G07_077T01_9000001306_09277cztM0_level2_quad_clean.evt
Size (bytes)462,047,04093,444,480
Size440.6 MB 89.1 MB
Events in quadrant A4,336,569588,727
Events in quadrant B3,090,420619,573
Events in quadrant C2,898,294616,041
Events in quadrant D3,250,865576,990

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A017263114
B01324250
C01273563
D01405363

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01262
B01262
C01260
D01262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61301171.908646%
B6147460.748333%
C6139160.260629%
D61461322.147738%

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 7499 6167 35 35 0.47% 0.57%
B 7499 6170 3 3 0.04% 0.05%
C 7499 6169 0 0 0.00% 0.00%
D 7499 6170 64 64 0.85% 1.04%

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 8 5 1277301 8671.65 732 718 147.2
A 13 251 85003 572.54 732 718 147.2
A 5 16 60905 408.84 732 718 147.2
B 0 214 47463 331.11 754 735 141.1
B 0 187 22760 156.07 754 735 141.1
B 0 213 22088 151.3 754 735 141.1
C 14 67 9683 52.51 738 742 170.3
C 13 61 5585 28.44 738 742 170.3
C 10 22 3975 18.99 738 742 170.3
D 12 233 334618 1832.88 715 697 182.2
D 7 71 81305 442.45 715 697 182.2
D 2 152 45068 243.55 715 697 182.2

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