ASTROSAT CZTI

Data Quality Report

Orbit 21103

Creation date: 2024-06-27T18:23:35.253892
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_163T01_9000003118_21103cztM0_level2.evt modeM0/AS1A05_163T01_9000003118_21103cztM0_level2_quad_clean.evt
Size (bytes)565,151,04096,140,160
Size539.0 MB 91.7 MB
Events in quadrant A3,182,907644,136
Events in quadrant B3,315,389662,800
Events in quadrant C3,265,615616,444
Events in quadrant D6,932,330555,186

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0240
C0240
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132663
B0136052
C0134582
D0250772

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6200270.435484%
B6200530.854839%
C6200480.774194%
D62005779.306452%

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 7545 6201 0 0 0.00% 0.00%
B 7545 6201 0 0 0.00% 0.00%
C 7545 6201 1 1 0.01% 0.02%
D 7545 6201 644 644 8.54% 10.39%

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 15 192 12730 72.56 821 806 164.3
A 13 254 10969 61.84 821 806 164.3
A 0 226 7076 38.15 821 806 164.3
B 0 219 46648 298.43 825 807 153.6
B 12 111 17405 108.06 825 807 153.6
B 11 111 14991 92.34 825 807 153.6
C 14 238 125768 681.11 789 797 183.5
C 7 221 57220 307.51 789 797 183.5
C 13 61 5367 24.91 789 797 183.5
D 1 20 1808040 9742.11 770 751 185.5
D 1 52 1551374 8358.56 770 751 185.5
D 7 238 315285 1695.48 770 751 185.5

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