ASTROSAT CZTI

Data Quality Report

Orbit 33884

Creation date: 2024-06-27T20:53:45.205531
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/AS1T04_090T01_9000004840_33884cztM0_level2.evt modeM0/AS1T04_090T01_9000004840_33884cztM0_level2_quad_clean.evt
Size (bytes)92,266,56021,064,320
Size88.0 MB 20.1 MB
Events in quadrant A477,369148,440
Events in quadrant B599,614147,703
Events in quadrant C741,972139,831
Events in quadrant D908,192128,162

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A019412
B023601
C028041
D033241

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A94810.105485%
B948353.691983%
C948565.907173%
D94811812.447257%

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 948 948 0 0 0.00% 0.00%
B 948 948 24 24 2.53% 2.53%
C 948 948 46 46 4.85% 4.85%
D 948 948 110 110 11.60% 11.60%

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 5299 201.19 121 119 25.7
A 13 6 2696 100.09 121 119 25.7
A 13 254 1596 57.37 121 119 25.7
B 5 172 84166 3481.55 118 116 24.1
B 5 255 35892 1481.93 118 116 24.1
B 0 182 3144 125.43 118 116 24.1
C 0 10 143364 5328.37 111 111 26.9
C 3 233 82500 3064.49 111 111 26.9
C 15 214 44425 1648.27 111 111 26.9
D 2 250 315658 11274.19 108 105 28.0
D 2 249 138473 4943.66 108 105 28.0
D 8 195 14163 502.27 108 105 28.0

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