ASTROSAT CZTI

Data Quality Report

Orbit 01369

Creation date: 2024-06-27T14:11:39.893661
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/AS1G04_014T02_9000000232_01369cztM0_level2.evt modeM0/AS1G04_014T02_9000000232_01369cztM0_level2_quad_clean.evt
Size (bytes)1,115,951,04097,548,480
Size1.0 GB 93.0 MB
Events in quadrant A8,473,415637,863
Events in quadrant B8,739,421638,962
Events in quadrant C7,906,975619,467
Events in quadrant D8,241,143598,722

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0298362
B0306171
C0281641
D0292111

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6581480.729372%
B6581540.820544%
C6581210.319100%
D65813124.740921%

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 7367 6582 389 389 5.28% 5.91%
B 7367 6581 470 470 6.38% 7.14%
C 7367 6581 154 154 2.09% 2.34%
D 7367 6581 634 634 8.61% 9.63%

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 4 32 320676 650.79 2032 2047 489.6
A 12 243 179598 362.64 2032 2047 489.6
A 15 127 89523 178.67 2032 2047 489.6
B 8 4 402751 802.57 2102 2108 499.2
B 5 249 116499 229.15 2102 2108 499.2
B 12 52 77267 150.56 2102 2108 499.2
C 15 241 220269 401.63 1941 2013 543.4
C 3 79 31100 53.53 1941 2013 543.4
C 3 111 25891 43.94 1941 2013 543.4
D 13 73 727944 1265.67 1852 1925 573.6
D 9 53 495465 860.39 1852 1925 573.6
D 13 252 29273 47.68 1852 1925 573.6

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