ASTROSAT CZTI

Data Quality Report

Orbit 48042

Creation date: 2024-08-16T06:38:18.470093
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/AS1T05_217T01_9000006390_48042cztM0_level2.fits modeM0/AS1T05_217T01_9000006390_48042cztM0_level2_quad_clean.evt
Size (bytes)39,228,4809,924,480
Size37.4 MB 9.5 MB
Events in quadrant A612,71164,713
Events in quadrant B256,83166,985
Events in quadrant C240,13163,882
Events in quadrant D295,62058,522

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A022430
B011300
C011200
D012600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A55550.900901%
B55620.359712%
C55600.000000%
D55620.359712%

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 555 555 0 0 0.00% 0.00%
B 556 556 0 0 0.00% 0.00%
C 556 556 0 0 0.00% 0.00%
D 556 556 1 1 0.18% 0.18%

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 10 83 367377 24726.15 61 60 14.9
A 0 243 2908 191.71 61 60 14.9
A 7 3 2799 184.38 61 60 14.9
B 0 198 3768 257.26 62 61 14.4
B 7 221 2263 152.82 62 61 14.4
B 5 255 1951 131.16 62 61 14.4
C 12 250 4368 270.07 60 60 16.0
C 14 254 807 46.83 60 60 16.0
C 14 67 558 31.22 60 60 16.0
D 2 249 26264 1585.71 58 56 16.5
D 11 192 15300 922.34 58 56 16.5
D 2 165 8833 531.05 58 56 16.5

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