ASTROSAT CZTI

Data Quality Report

Orbit 08341

Creation date: 2024-06-27T15:31:20.978823
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/AS1G07_029T01_9000001158_08341cztM0_level2.evt modeM0/AS1G07_029T01_9000001158_08341cztM0_level2_quad_clean.evt
Size (bytes)474,451,20092,545,920
Size452.5 MB 88.3 MB
Events in quadrant A3,339,620585,774
Events in quadrant B3,470,696588,603
Events in quadrant C3,603,328574,978
Events in quadrant D3,474,205560,771

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147752
B0150141
C0156131
D0152981

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70771542.176063%
B70771932.727144%
C70771612.274975%
D70771111.568461%

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 7092 7078 0 0 0.00% 0.00%
B 7092 7078 0 0 0.00% 0.00%
C 7092 7078 58 58 0.82% 0.82%
D 7092 7078 7 7 0.10% 0.10%

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 0 226 8183 41.25 868 848 177.8
A 12 194 7970 40.05 868 848 177.8
A 3 137 3557 15.23 868 848 177.8
B 0 214 72271 424.0 866 845 168.5
B 12 111 19150 108.66 866 845 168.5
B 11 111 15678 88.05 866 845 168.5
C 9 54 308133 1552.08 843 846 198.0
C 13 61 6362 27.86 843 846 198.0
C 8 128 4443 18.17 843 846 198.0
D 12 221 144798 703.29 844 822 204.7
D 2 14 34277 163.42 844 822 204.7
D 1 7 27143 128.57 844 822 204.7

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