ASTROSAT CZTI

Data Quality Report

Orbit 20160123_G02_044T01_9000000288_level2

Creation date: 2017-10-31T21:51:41.371249
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/AS1G02_044T01_9000000288cztM0_level2.evt modeM0/AS1G02_044T01_9000000288cztM0_level2_quad_clean.evt
Size (bytes)9,390,919,680757,134,720
Size8.7 GB 722.1 MB
Events in quadrant A69,983,0324,834,546
Events in quadrant B70,409,1564,910,461
Events in quadrant C64,685,3914,789,353
Events in quadrant D75,741,6044,651,193

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02465380
B02478340
C02311520
D02637960

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010940
B010940
C010940
D010940

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B190
C190
D110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A546403280.600293%
B546382210.404480%
C546327941.453361%
D5463411972.190943%

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 61271 54649 3037 3037 4.96% 5.56%
B 61271 54649 3005 3005 4.90% 5.50%
C 61271 54647 2440 2440 3.98% 4.47%
D 61271 54647 7332 7332 11.97% 13.42%

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 0 231 4951519 1216.33 16917 17006 4056.9
A 15 236 286339 66.39 16917 17006 4056.9
A 12 251 58480 10.22 16917 17006 4056.9
B 8 3 2920147 703.03 17638 17699 4128.5
B 0 234 476023 111.01 17638 17699 4128.5
B 15 85 95255 18.79 17638 17699 4128.5
C 8 208 1645829 363.66 16024 16571 4480.2
C 1 192 328129 69.54 16024 16571 4480.2
C 8 229 140592 27.68 16024 16571 4480.2
D 7 85 12753509 2651.66 15563 16148 4803.5
D 1 83 1119132 229.62 15563 16148 4803.5
D 7 204 1108952 227.5 15563 16148 4803.5

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