ASTROSAT CZTI

Data Quality Report

Orbit 20191219_C05_013T03_9000003376_level2

Creation date: 2019-12-20T10:29:10.262722
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/AS1C05_013T03_9000003376cztM0_level2_bc.evt modeM0/AS1C05_013T03_9000003376cztM0_level2_quad_clean.evt
Size (bytes)390,810,240151,905,600
Size372.7 MB 144.9 MB
Events in quadrant A1,770,1721,039,120
Events in quadrant B1,725,0561,053,094
Events in quadrant C1,614,8091,014,182
Events in quadrant D6,151,777916,282

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171450
B0172930
C0171080
D0304830

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01680
B01680
C01680
D01680

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8320250.300481%
B8320460.552885%
C8320690.829327%
D8320162919.579327%

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 9090 8320 0 0 0.00% 0.00%
B 9090 8320 0 0 0.00% 0.00%
C 9090 8320 0 0 0.00% 0.00%
D 9090 8320 1153 1153 12.68% 13.86%

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 11 47 128689 1375.03 417 409 93.3
A 13 252 20187 212.0 417 409 93.3
A 13 254 14124 147.01 417 409 93.3
B 0 190 43239 514.13 420 409 83.3
B 0 229 34043 403.74 420 409 83.3
B 0 228 8921 102.18 420 409 83.3
C 7 247 49506 499.18 403 399 98.4
C 2 16 14169 139.98 403 399 98.4
C 13 61 2277 19.09 403 399 98.4
D 1 52 3982220 41524.77 387 372 95.9
D 1 239 386942 4031.35 387 372 95.9
D 9 85 83249 864.28 387 372 95.9

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