ASTROSAT CZTI

Data Quality Report

Orbit 20151126_P01_889T01_9000000130_level2

Creation date: 2016-09-06T17:58:23.861049
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_889T01_9000000130cztM0_level2_bc.evt modeM0/AS1P01_889T01_9000000130cztM0_level2_quad_clean.evt
Size (bytes)141,860,16028,396,800
Size135.3 MB 27.1 MB
Events in quadrant A343,778201,334
Events in quadrant B375,219199,654
Events in quadrant C2,996,182114,774
Events in quadrant D433,852195,216

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A081830
B085680
C0166140
D076070

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0400
B0400
C0400
D0400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A204100.000000%
B204120.097991%
C2041134565.899069%
D204120.097991%

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 2041 2041 0 0 0.00% 0.00%
B 2041 2041 0 0 0.00% 0.00%
C 2041 2041 798 798 39.10% 39.10%
D 2041 2041 1 1 0.05% 0.05%

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 10 133 2482 111.51 88 86 21.5
A 12 243 228 6.61 88 86 21.5
A 10 83 224 6.42 88 86 21.5
B 0 245 7888 414.92 89 87 18.8
B 5 249 4965 259.45 89 87 18.8
B 7 221 4303 224.24 89 87 18.8
C 9 83 2742935 198211.22 53 52 13.8
C 1 192 29728 2144.5 53 52 13.8
C 3 79 4419 315.58 53 52 13.8
D 1 4 59695 2763.23 87 84 21.6
D 2 16 9326 428.41 87 84 21.6
D 2 63 6350 290.46 87 84 21.6

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