ASTROSAT CZTI

Data Quality Report

Orbit 20151126_P01_999T99_9000000128_level2

Creation date: 2016-09-06T17:57:50.655582
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/AS1P01_999T99_9000000128cztM0_level2_bc.evt modeM0/AS1P01_999T99_9000000128cztM0_level2_quad_clean.evt
Size (bytes)130,550,40029,707,200
Size124.5 MB 28.3 MB
Events in quadrant A344,765200,678
Events in quadrant B361,480203,332
Events in quadrant C2,717,633135,952
Events in quadrant D369,758197,823

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A088780
B090560
C0164170
D077320

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A223010.044843%
B223000.000000%
C2230110149.372197%
D223000.000000%

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 2230 2230 0 0 0.00% 0.00%
B 2230 2230 0 0 0.00% 0.00%
C 2229 2229 538 538 24.14% 24.14%
D 2230 2230 0 0 0.00% 0.00%

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 9 983 43.5 89 87 20.6
A 10 133 381 14.27 89 87 20.6
A 14 79 374 13.93 89 87 20.6
B 0 220 5374 279.36 91 88 18.9
B 15 22 2579 131.65 91 88 18.9
B 0 190 2001 101.1 91 88 18.9
C 9 83 2458162 157065.87 62 61 15.7
C 15 241 3902 245.43 62 61 15.7
C 1 192 3250 203.77 62 61 15.7
D 1 4 24142 1120.26 87 84 21.5
D 12 188 6049 277.76 87 84 21.5
D 10 114 2330 104.58 87 84 21.5

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