ASTROSAT CZTI

Data Quality Report

Orbit 04345

Creation date: 2024-06-27T14:40:39.747548
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/AS1G05_219T01_9000000540_04345cztM0_level2.evt modeM0/AS1G05_219T01_9000000540_04345cztM0_level2_quad_clean.evt
Size (bytes)972,256,32068,080,320
Size927.2 MB 64.9 MB
Events in quadrant A3,346,344499,347
Events in quadrant B17,869,310116,776
Events in quadrant C4,112,139486,136
Events in quadrant D3,648,499473,537

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148443
B0577802
C0169972
D0157152

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69391051.513186%
B6939654794.350771%
C69391982.853437%
D6939921.325839%

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 7629 6940 41 41 0.54% 0.59%
B 7628 6938 6450 6450 84.56% 92.97%
C 7629 6940 155 155 2.03% 2.23%
D 7629 6940 64 64 0.84% 0.92%

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 101629 597.45 822 804 168.8
A 0 50 55818 325.99 822 804 168.8
A 12 194 8406 45.05 822 804 168.8
B 3 0 16534012 265109.69 317 311 62.4
B 15 204 26146 414.25 317 311 62.4
B 15 54 24362 385.65 317 311 62.4
C 9 247 581848 3132.91 785 788 185.5
C 9 16 451019 2427.52 785 788 185.5
C 12 4 8022 39.0 785 788 185.5
D 2 136 242031 1242.73 793 770 194.1
D 13 53 173531 889.89 793 770 194.1
D 13 105 54064 274.52 793 770 194.1

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