ASTROSAT CZTI

Data Quality Report

Orbit 02832

Creation date: 2024-06-27T14:22:12.725167
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/AS1P01_999T99_9000000410_02832cztM0_level2.evt modeM0/AS1P01_999T99_9000000410_02832cztM0_level2_quad_clean.evt
Size (bytes)754,398,72057,119,040
Size719.5 MB 54.5 MB
Events in quadrant A2,697,279391,680
Events in quadrant B5,599,574351,633
Events in quadrant C5,658,382352,829
Events in quadrant D8,541,042267,419

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116983
B0201712
C0203692
D0290232

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A52321252.389144%
B518888617.077872%
C5208119322.907066%
D5151261150.689187%

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 7387 5233 91 91 1.23% 1.74%
B 7387 5190 561 561 7.59% 10.81%
C 7387 5209 820 820 11.10% 15.74%
D 7387 5151 1811 1811 24.52% 35.16%

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 0 5 342263 2934.17 564 552 116.5
A 0 13 81882 698.36 564 552 116.5
A 0 31 41091 348.1 564 552 116.5
B 0 4 1106881 10647.76 533 522 103.9
B 0 167 799376 7688.29 533 522 103.9
B 0 189 419268 4030.07 533 522 103.9
C 0 219 3225426 27767.98 490 492 116.1
C 1 16 135682 1164.04 490 492 116.1
C 1 192 114200 979.07 490 492 116.1
D 0 226 3457246 35295.79 394 385 97.9
D 1 66 2269105 23164.44 394 385 97.9
D 1 83 511059 5214.16 394 385 97.9

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
Veto Counter