ASTROSAT CZTI

Data Quality Report

Orbit 13112

Creation date: 2024-06-27T16:36:29.330936
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/AS1A04_017T01_9000001932_13112cztM0_level2.evt modeM0/AS1A04_017T01_9000001932_13112cztM0_level2_quad_clean.evt
Size (bytes)551,943,36029,154,240
Size526.4 MB 27.8 MB
Events in quadrant A2,489,460178,458
Events in quadrant B2,877,806182,318
Events in quadrant C1,901,100181,083
Events in quadrant D9,182,47464,311

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A098852
B0109341
C080111
D0299521

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0800
B0800
C0800
D0800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A39001223.128205%
B39003508.974359%
C3900140.358974%
D3900324083.076923%

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 5176 3903 84 84 1.62% 2.15%
B 5176 3902 243 243 4.69% 6.23%
C 5176 3903 0 0 0.00% 0.00%
D 5176 3903 2757 2757 53.27% 70.64%

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 15 223 285194 2801.7 496 487 101.6
A 15 239 141550 1388.15 496 487 101.6
A 12 189 112425 1101.54 496 487 101.6
B 0 85 701211 7473.83 488 476 93.8
B 4 239 117922 1252.64 488 476 93.8
B 3 64 113514 1205.63 488 476 93.8
C 0 207 4969 39.32 485 489 113.9
C 13 61 3533 26.72 485 489 113.9
C 8 112 2455 17.26 485 489 113.9
D 13 122 8027480 127662.67 256 249 62.9
D 1 52 128065 2032.75 256 249 62.9
D 10 157 38921 615.03 256 249 62.9

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
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter