ASTROSAT CZTI

Data Quality Report

Orbit 20160108_G02_011T01_9000000254_level2

Creation date: 2016-09-06T17:55:29.971349
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_011T01_9000000254cztM0_level2_bc.evt modeM0/AS1G02_011T01_9000000254cztM0_level2_quad_clean.evt
Size (bytes)524,666,880165,945,600
Size500.4 MB 158.3 MB
Events in quadrant A2,567,0591,087,519
Events in quadrant B2,806,6501,088,542
Events in quadrant C2,648,5661,063,984
Events in quadrant D6,973,084886,356

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0567470
B0583210
C0549550
D0762070

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0330

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02660
B02660
C02660
D02660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A130061431.099493%
B130061421.091804%
C130061040.799631%
D13006279021.451638%

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 16366 13004 0 0 0.00% 0.00%
B 16366 13003 0 0 0.00% 0.00%
C 16366 13003 1 1 0.01% 0.01%
D 16366 13003 79 79 0.48% 0.61%

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 15 233 33618 240.92 652 637 136.9
A 13 9 13216 91.89 652 637 136.9
A 10 2 6565 43.3 652 637 136.9
B 0 234 197564 1669.66 661 642 117.9
B 15 85 20577 169.02 661 642 117.9
B 3 204 14459 117.15 661 642 117.9
C 7 221 95421 710.29 631 620 133.5
C 9 54 36706 270.37 631 620 133.5
C 9 144 13210 94.33 631 620 133.5
D 10 84 4642463 37954.25 563 547 122.3
D 13 53 106030 862.47 563 547 122.3
D 7 85 45255 365.55 563 547 122.3

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