ASTROSAT CZTI

Data Quality Report

Orbit 20151210_P01_180T10_9000000200_level2

Creation date: 2016-09-06T17:56:51.966377
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_180T10_9000000200cztM0_level2_bc.evt modeM0/AS1P01_180T10_9000000200cztM0_level2_quad_clean.evt
Size (bytes)99,889,92050,670,720
Size95.3 MB 48.3 MB
Events in quadrant A567,089333,020
Events in quadrant B714,055329,829
Events in quadrant C744,862317,916
Events in quadrant D762,943316,168

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139050
B0147780
C0141230
D0136470

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3342371.107121%
B3342601.795332%
C3342240.718133%
D3342310.927588%

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 3341 3341 0 0 0.00% 0.00%
B 3341 3341 0 0 0.00% 0.00%
C 3341 3341 0 0 0.00% 0.00%
D 3341 3341 8 8 0.24% 0.24%

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 13 193 1524 41.6 146 142 33.2
A 13 9 1318 35.4 146 142 33.2
A 0 36 695 16.65 146 142 33.2
B 15 22 40739 1384.26 147 143 29.3
B 4 172 40006 1359.27 147 143 29.3
B 4 187 21620 732.33 147 143 29.3
C 15 241 153797 4858.67 140 136 31.6
C 3 79 21620 679.3 140 136 31.6
C 3 111 9978 311.18 140 136 31.6
D 12 22 124983 3798.05 142 137 32.9
D 2 253 41668 1263.45 142 137 32.9
D 10 166 18435 556.66 142 137 32.9

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