ASTROSAT CZTI

Data Quality Report

Orbit 07806

Creation date: 2024-06-27T15:24:15.607429
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_032T01_9000001074_07806cztM0_level2.evt modeM0/AS1G06_032T01_9000001074_07806cztM0_level2_quad_clean.evt
Size (bytes)503,939,52094,717,440
Size480.6 MB 90.3 MB
Events in quadrant A3,495,714588,212
Events in quadrant B3,888,941601,084
Events in quadrant C3,453,811587,900
Events in quadrant D3,902,791558,151

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158743
B0165622
C0158832
D0170252

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76622403.132341%
B76622653.458627%
C76621632.127382%
D76622142.793004%

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 7762 7662 2 2 0.03% 0.03%
B 7762 7662 7 7 0.09% 0.09%
C 7762 7662 0 0 0.00% 0.00%
D 7762 7662 26 26 0.33% 0.34%

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 3 1 12426 62.79 899 877 183.9
A 15 174 12320 62.22 899 877 183.9
A 0 226 8432 41.08 899 877 183.9
B 11 51 161456 927.61 904 882 173.1
B 4 239 54202 308.02 904 882 173.1
B 0 214 44776 253.57 904 882 173.1
C 13 61 6938 29.55 880 882 205.0
C 8 128 5725 23.63 880 882 205.0
C 1 16 5412 22.1 880 882 205.0
D 2 152 308802 1430.21 882 851 215.3
D 7 55 104183 479.9 882 851 215.3
D 13 104 56221 257.15 882 851 215.3

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