ASTROSAT CZTI

Data Quality Report

Orbit 30484

Creation date: 2024-06-27T20:15:51.259263
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/AS1A10_058T04_9000004382_30484cztM0_level2.evt modeM0/AS1A10_058T04_9000004382_30484cztM0_level2_quad_clean.evt
Size (bytes)565,813,440118,543,680
Size539.6 MB 113.1 MB
Events in quadrant A3,544,682823,272
Events in quadrant B5,243,357813,153
Events in quadrant C3,673,622764,598
Events in quadrant D4,252,706754,591

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146922
B0196452
C0149672
D0168182

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62221151.848280%
B62221862.989392%
C62221822.925104%
D62222133.423337%

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 7532 6223 5 5 0.07% 0.08%
B 7532 6223 8 8 0.11% 0.13%
C 7532 6223 2 2 0.03% 0.03%
D 7532 6223 133 133 1.77% 2.14%

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 13 43488 239.33 900 886 178.0
A 8 192 20952 112.73 900 886 178.0
A 4 2 12378 64.56 900 886 178.0
B 6 159 1684248 10340.98 869 851 162.8
B 0 229 82756 503.14 869 851 162.8
B 4 171 29374 175.21 869 851 162.8
C 3 233 262941 1383.76 831 838 189.4
C 14 238 137756 722.85 831 838 189.4
C 2 114 14462 71.93 831 838 189.4
D 12 218 548013 2761.15 856 836 198.2
D 8 195 280519 1411.33 856 836 198.2
D 2 250 48706 241.56 856 836 198.2

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