ASTROSAT CZTI

Data Quality Report

Orbit 05832

Creation date: 2024-06-27T14:59:39.654894
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_052T01_9000000754_05832cztM0_level2.evt modeM0/AS1G06_052T01_9000000754_05832cztM0_level2_quad_clean.evt
Size (bytes)438,422,400102,461,760
Size418.1 MB 97.7 MB
Events in quadrant A3,117,853665,545
Events in quadrant B3,230,613677,682
Events in quadrant C3,023,527663,391
Events in quadrant D3,450,566629,916

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139523
B0140262
C0137872
D0150662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6692530.791990%
B6692640.956366%
C6692360.537956%
D6692761.135684%

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 9177 6695 1 1 0.01% 0.01%
B 9177 6695 5 5 0.05% 0.07%
C 9177 6695 0 0 0.00% 0.00%
D 9177 6695 18 18 0.20% 0.27%

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 15 223 31305 188.8 800 785 161.7
A 0 226 7851 43.71 800 785 161.7
A 12 194 7662 42.54 800 785 161.7
B 15 204 60232 392.67 805 786 151.4
B 4 81 28112 180.5 805 786 151.4
B 4 80 17119 107.89 805 786 151.4
C 1 16 12384 65.55 770 774 177.1
C 13 61 6385 31.68 770 774 177.1
C 14 67 4710 22.22 770 774 177.1
D 11 241 320364 1712.12 766 741 186.7
D 2 152 168022 896.07 766 741 186.7
D 2 14 24547 127.52 766 741 186.7

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