ASTROSAT CZTI

Data Quality Report

Orbit 20161007_G06_126T01_9000000716_level2

Creation date: 2016-10-21T07:07:02.414076
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev: 1121 $

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/AS1G06_126T01_9000000716cztM0_level2_bc.evt modeM0/AS1G06_126T01_9000000716cztM0_level2_quad_clean.evt
Size (bytes)200,194,56057,738,240
Size190.9 MB 55.1 MB
Events in quadrant A1,161,461336,940
Events in quadrant B1,580,571338,242
Events in quadrant C1,210,861336,766
Events in quadrant D1,691,803315,558

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124710
B0137080
C0125750
D0140500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6018530.880691%
B6018891.478897%
C6018420.697906%
D60181201.994018%

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 6968 6018 3 3 0.04% 0.05%
B 6968 6018 10 10 0.14% 0.17%
C 6968 6019 3 3 0.04% 0.05%
D 6968 6018 18 18 0.26% 0.30%

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 7 16 31117 466.99 283 275 66.0
A 0 50 14049 208.56 283 275 66.0
A 3 1 11174 165.02 283 275 66.0
B 15 204 148232 2554.94 286 277 57.9
B 10 16 147877 2548.81 286 277 57.9
B 11 51 69581 1196.77 286 277 57.9
C 9 16 69058 1077.64 278 273 63.8
C 1 16 42045 654.43 278 273 63.8
C 7 159 4102 59.99 278 273 63.8
D 2 152 197244 2929.1 277 265 67.2
D 2 33 141661 2102.57 277 265 67.2
D 8 195 94923 1407.57 277 265 67.2

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