ASTROSAT CZTI

Data Quality Report

Orbit 19422

Creation date: 2024-06-27T18:02:44.388301
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/AS1A05_212T09_9000002886_19422cztM0_level2.evt modeM0/AS1A05_212T09_9000002886_19422cztM0_level2_quad_clean.evt
Size (bytes)135,852,48039,640,320
Size129.6 MB 37.8 MB
Events in quadrant A919,441274,489
Events in quadrant B928,720275,626
Events in quadrant C950,448263,581
Events in quadrant D1,196,933260,828

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A037621
B038111
C038831
D046901

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070
B070
C070
D070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1711100.584454%
B1711160.935126%
C1711231.344243%
D1711331.928697%

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 1711 1711 0 0 0.00% 0.00%
B 1711 1711 0 0 0.00% 0.00%
C 1711 1711 0 0 0.00% 0.00%
D 1711 1711 11 11 0.64% 0.64%

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 13 254 2341 42.73 238 233 49.3
A 0 226 2119 38.23 238 233 49.3
A 12 194 1719 30.12 238 233 49.3
B 0 198 20130 444.21 232 226 44.8
B 12 111 4923 104.83 232 226 44.8
B 11 111 4436 93.96 232 226 44.8
C 14 238 36108 666.52 229 230 53.8
C 3 233 20580 378.05 229 230 53.8
C 13 61 1551 24.54 229 230 53.8
D 1 52 216498 3766.35 235 228 57.4
D 7 238 86895 1509.31 235 228 57.4
D 2 234 5606 93.66 235 228 57.4

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