ASTROSAT CZTI

Data Quality Report

Orbit 04565

Creation date: 2024-06-27T14:43:52.009644
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/AS1G05_233T10_9000000570_04565cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04565cztM0_level2_quad_clean.evt
Size (bytes)523,814,40093,499,200
Size499.5 MB 89.2 MB
Events in quadrant A3,430,535592,367
Events in quadrant B4,235,972578,195
Events in quadrant C3,662,240577,380
Events in quadrant D4,024,665560,449

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155389
B0175625
C0162098
D01720311

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7509761.012119%
B75102192.916112%
C7509670.892263%
D75081331.771444%

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 7847 7513 4 4 0.05% 0.05%
B 7847 7513 80 80 1.02% 1.06%
C 7847 7513 9 9 0.11% 0.12%
D 7847 7513 49 49 0.62% 0.65%

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 13 251 67238 375.77 863 843 176.7
A 0 50 11327 59.33 863 843 176.7
A 8 15 9789 50.63 863 843 176.7
B 14 167 485045 2906.93 859 838 166.6
B 5 70 133990 799.37 859 838 166.6
B 10 16 81033 481.45 859 838 166.6
C 14 48 364234 1865.33 833 834 194.8
C 9 247 18106 88.66 833 834 194.8
C 8 128 11604 55.28 833 834 194.8
D 7 67 244074 1208.97 835 812 201.2
D 13 235 199293 986.41 835 812 201.2
D 9 35 103117 508.44 835 812 201.2

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