ASTROSAT CZTI

Data Quality Report

Orbit 20191224_A07_047T09_9000003386_level2

Creation date: 2019-12-26T09:25:26.413361
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/AS1A07_047T09_9000003386cztM0_level2_bc.evt modeM0/AS1A07_047T09_9000003386cztM0_level2_quad_clean.evt
Size (bytes)403,620,480155,782,080
Size384.9 MB 148.6 MB
Events in quadrant A2,038,0241,038,311
Events in quadrant B2,235,4431,044,789
Events in quadrant C2,060,092985,113
Events in quadrant D5,177,767933,114

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210020
B0216770
C0212450
D0329440

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02120
B02120
C02120
D02120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10347400.386585%
B10347690.666860%
C103471081.043781%
D103478328.040978%

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 11357 10347 0 0 0.00% 0.00%
B 11357 10347 2 2 0.02% 0.02%
C 11357 10347 0 0 0.00% 0.00%
D 11357 10347 61 61 0.54% 0.59%

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 13 254 17845 146.91 520 508 118.0
A 0 23 15644 128.26 520 508 118.0
A 4 2 4312 32.23 520 508 118.0
B 0 190 94523 920.81 522 510 102.1
B 0 228 26791 257.41 522 510 102.1
B 0 230 26015 249.81 522 510 102.1
C 6 80 137583 1149.37 492 489 119.3
C 7 247 15792 128.3 492 489 119.3
C 8 128 4855 36.6 492 489 119.3
D 1 52 2019713 17076.9 489 470 118.2
D 13 172 692774 5854.87 489 470 118.2
D 12 233 171720 1448.27 489 470 118.2

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