ASTROSAT CZTI

Data Quality Report

Orbit 17308

Creation date: 2024-06-27T17:34:48.047137
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

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/AS1A05_010T02_9000002556_17308cztM0_level2.evt modeM0/AS1A05_010T02_9000002556_17308cztM0_level2_quad_clean.evt
Size (bytes)525,870,72092,566,080
Size501.5 MB 88.3 MB
Events in quadrant A3,524,686592,720
Events in quadrant B3,539,935594,520
Events in quadrant C3,485,244564,364
Events in quadrant D4,894,894557,866

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151002
B0151322
C0150672
D0192082

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70881462.059819%
B70891702.398082%
C70891842.595571%
D70892002.821272%

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 9088 7088 0 0 0.00% 0.00%
B 9089 7089 0 0 0.00% 0.00%
C 9089 7089 0 0 0.00% 0.00%
D 9089 7089 44 44 0.48% 0.62%

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 23 28986 154.66 904 886 181.7
A 4 2 17190 89.74 904 886 181.7
A 0 226 9345 46.56 904 886 181.7
B 0 230 21554 120.37 898 876 171.8
B 12 111 21009 117.2 898 876 171.8
B 11 111 18645 103.44 898 876 171.8
C 14 238 133562 662.16 858 863 200.4
C 3 233 7181 31.52 858 863 200.4
C 13 61 6003 25.65 858 863 200.4
D 5 222 1193003 5657.03 870 843 210.7
D 11 176 364260 1724.48 870 843 210.7
D 1 52 34511 159.76 870 843 210.7

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