ASTROSAT CZTI

Data Quality Report

Orbit 19814

Creation date: 2024-06-27T18:07:24.933562
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/AS1C04_009T06_9000002960_19814cztM0_level2.evt modeM0/AS1C04_009T06_9000002960_19814cztM0_level2_quad_clean.evt
Size (bytes)549,682,560125,663,040
Size524.2 MB 119.8 MB
Events in quadrant A3,811,142824,993
Events in quadrant B3,460,899884,605
Events in quadrant C3,091,532876,385
Events in quadrant D5,869,996793,638

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155111
B0143981
C0132981
D0216253

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60995058.280046%
B61001652.704918%
C6100911.491803%
D609975112.313494%

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 7373 6098 347 347 4.71% 5.69%
B 7375 6100 62 62 0.84% 1.02%
C 7375 6100 0 0 0.00% 0.00%
D 7373 6098 578 578 7.84% 9.48%

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 14 238 827171 5638.94 725 710 146.6
A 14 254 153923 1045.37 725 710 146.6
A 5 16 28765 191.42 725 710 146.6
B 5 172 116682 825.08 765 746 140.5
B 10 245 114628 810.46 765 746 140.5
B 0 197 97571 689.07 765 746 140.5
C 14 238 118555 676.66 754 762 174.1
C 3 233 23418 130.15 754 762 174.1
C 0 207 7910 41.06 754 762 174.1
D 1 52 1316390 7552.21 720 700 174.2
D 12 33 494503 2834.48 720 700 174.2
D 12 233 388415 2225.53 720 700 174.2

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