ASTROSAT CZTI

Data Quality Report

Orbit 20160518_G05_209T01_9000000458_level2

Creation date: 2017-10-31T11:32:19.190798
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/AS1G05_209T01_9000000458cztM0_level2.evt modeM0/AS1G05_209T01_9000000458cztM0_level2_quad_clean.evt
Size (bytes)3,494,479,680869,699,520
Size3.3 GB 829.4 MB
Events in quadrant A25,576,7685,676,134
Events in quadrant B27,822,6605,760,735
Events in quadrant C26,206,5775,788,890
Events in quadrant D22,757,7035,595,439

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01139160
B01181620
C01163960
D01078020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010440
B010440
C010440
D010440

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5135612112.358050%
B513577381.437000%
C5135712732.478727%
D513574210.819752%

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 57227 51367 458 458 0.80% 0.89%
B 57227 51370 172 172 0.30% 0.33%
C 57227 51369 973 973 1.70% 1.89%
D 57227 51369 147 147 0.26% 0.29%

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 8 15 1609285 1402.22 5622 5485 1143.8
A 0 118 913342 793.75 5622 5485 1143.8
A 14 249 579335 501.72 5622 5485 1143.8
B 15 204 3600956 3331.23 5734 5589 1079.3
B 0 219 291245 264.67 5734 5589 1079.3
B 14 167 255829 231.86 5734 5589 1079.3
C 1 192 3330044 2617.92 5515 5534 1269.9
C 10 19 350877 271.94 5515 5534 1269.9
C 6 80 257690 198.56 5515 5534 1269.9
D 13 223 425355 320.63 5505 5340 1310.0
D 5 233 351396 264.17 5505 5340 1310.0
D 2 37 308304 231.28 5505 5340 1310.0

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