ASTROSAT CZTI

Data Quality Report

Orbit 13107

Creation date: 2024-06-27T16:36:22.297236
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/AS1C03_023T01_9000001930_13107cztM0_level2.evt modeM0/AS1C03_023T01_9000001930_13107cztM0_level2_quad_clean.evt
Size (bytes)1,721,024,640216,843,840
Size1.6 GB 206.8 MB
Events in quadrant A9,027,9461,339,619
Events in quadrant B14,714,2911,338,023
Events in quadrant C8,434,9061,365,668
Events in quadrant D18,695,1261,246,709

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0389335
B0559604
C0378184
D0683474

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03780
B03780
C03780
D03780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A185302111.138694%
B18530293715.849973%
C185301240.669185%
D18530271014.624933%

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 20676 18535 22 22 0.11% 0.12%
B 20676 18535 1887 1887 9.13% 10.18%
C 20676 18535 2 2 0.01% 0.01%
D 20676 18535 2013 2013 9.74% 10.86%

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 12 189 230494 507.63 2198 2145 449.8
A 15 223 109955 239.67 2198 2145 449.8
A 8 15 78231 169.14 2198 2145 449.8
B 4 239 5439427 14382.28 1986 1935 378.1
B 0 85 990391 2614.48 1986 1935 378.1
B 3 64 351771 925.32 1986 1935 378.1
C 13 61 15735 27.13 2153 2161 500.3
C 14 234 15021 25.7 2153 2161 500.3
C 8 128 12048 19.76 2153 2161 500.3
D 13 122 5404016 10981.63 2033 1977 491.9
D 1 52 4651222 9451.3 2033 1977 491.9
D 14 34 372673 753.58 2033 1977 491.9

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