ASTROSAT CZTI

Data Quality Report

Orbit 20160514_G05_210T01_9000000454_level2

Creation date: 2016-09-06T17:50:24.231717
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_210T01_9000000454cztM0_level2_bc.evt modeM0/AS1G05_210T01_9000000454cztM0_level2_quad_clean.evt
Size (bytes)3,339,768,9601,076,538,240
Size3.1 GB 1.0 GB
Events in quadrant A19,681,7126,516,294
Events in quadrant B27,020,3026,510,665
Events in quadrant C27,583,0756,416,310
Events in quadrant D20,028,1146,292,110

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020360
B020360
C020360
D020360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02086260
B02294590
C02371140
D02094450

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01690
B01690
C01690
D01690

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A10027515271.522812%
B10027518791.873847%
C10027531933.184243%
D10027511561.152830%

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 116680 100282 10 10 0.01% 0.01%
B 116680 100280 45 45 0.04% 0.04%
C 116680 100281 267 267 0.23% 0.27%
D 116680 100279 42 42 0.04% 0.04%

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 0 118 520402 486.19 4744 4626 1060.9
A 8 15 406386 378.71 4744 4626 1060.9
A 0 31 155500 142.22 4744 4626 1060.9
B 15 204 5929471 6478.48 4799 4651 914.5
B 14 167 1306433 1423.43 4799 4651 914.5
B 2 249 386088 417.08 4799 4651 914.5
C 7 220 5160615 4945.9 4657 4562 1042.5
C 14 223 1254644 1199.13 4657 4562 1042.5
C 1 192 938012 895.4 4657 4562 1042.5
D 2 37 480470 432.26 4705 4518 1101.1
D 12 246 206527 183.47 4705 4518 1101.1
D 13 239 192786 170.99 4705 4518 1101.1

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