ASTROSAT CZTI

Data Quality Report

Orbit 08005

Creation date: 2024-06-27T15:26:33.537884
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/AS1A02_165T03_9000001098_08005cztM0_level2.evt modeM0/AS1A02_165T03_9000001098_08005cztM0_level2_quad_clean.evt
Size (bytes)87,102,72014,135,040
Size83.1 MB 13.5 MB
Events in quadrant A574,55487,254
Events in quadrant B616,16191,053
Events in quadrant C587,37488,709
Events in quadrant D787,58482,181

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023181
B024491
C023391
D029971

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1012373.656126%
B1012626.126482%
C1012454.446640%
D1012595.830040%

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 2337 1013 0 0 0.00% 0.00%
B 2337 1013 1 1 0.04% 0.10%
C 2337 1013 0 0 0.00% 0.00%
D 2337 1013 7 7 0.30% 0.69%

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 0 226 1394 38.22 148 144 32.7
A 12 194 1344 36.69 148 144 32.7
A 13 14 1091 28.95 148 144 32.7
B 4 239 13021 419.42 151 146 30.7
B 5 250 7188 229.4 151 146 30.7
B 5 255 4379 137.9 151 146 30.7
C 1 16 1452 35.71 149 150 36.5
C 13 61 1096 25.94 149 150 36.5
C 12 4 995 23.17 149 150 36.5
D 11 144 168843 4367.54 146 142 38.6
D 1 52 37304 962.1 146 142 38.6
D 1 83 11003 281.18 146 142 38.6

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