ASTROSAT CZTI

Data Quality Report

Orbit 06209

Creation date: 2024-06-27T15:04:08.606801
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/AS1G06_103T01_9000000812_06209cztM0_level2.evt modeM0/AS1G06_103T01_9000000812_06209cztM0_level2_quad_clean.evt
Size (bytes)432,342,72093,291,840
Size412.3 MB 89.0 MB
Events in quadrant A3,299,691606,042
Events in quadrant B3,251,173615,004
Events in quadrant C2,940,613595,421
Events in quadrant D3,177,892573,379

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137912
B0135771
C0128121
D0134071

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6242781.249599%
B6242811.297661%
C6242350.560718%
D6242651.041333%

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 7547 6243 2 2 0.03% 0.03%
B 7547 6242 11 11 0.15% 0.18%
C 7547 6242 0 0 0.00% 0.00%
D 7547 6243 4 4 0.05% 0.06%

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 8 192 200090 1285.14 772 757 155.1
A 8 15 120136 769.66 772 757 155.1
A 12 194 7639 44.37 772 757 155.1
B 0 214 67990 461.88 774 757 145.6
B 10 246 44035 297.32 774 757 145.6
B 15 35 43392 292.9 774 757 145.6
C 1 16 26551 150.2 746 753 171.8
C 13 61 5995 30.52 746 753 171.8
C 9 54 3941 18.56 746 753 171.8
D 2 136 107425 587.86 753 732 181.5
D 5 97 55897 303.95 753 732 181.5
D 12 221 39231 212.12 753 732 181.5

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