ASTROSAT CZTI

Data Quality Report

Orbit 10323

Creation date: 2024-06-27T15:57:54.920548
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/AS1A03_124T01_9000001486_10323cztM0_level2.evt modeM0/AS1A03_124T01_9000001486_10323cztM0_level2_quad_clean.evt
Size (bytes)441,858,24093,124,800
Size421.4 MB 88.8 MB
Events in quadrant A3,155,599603,544
Events in quadrant B3,496,664608,529
Events in quadrant C2,915,176592,181
Events in quadrant D3,375,385565,887

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137052
B0145501
C0132161
D0143021

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64481532.372829%
B64481502.326303%
C6448881.364764%
D64481692.620968%

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 6968 6448 16 16 0.23% 0.25%
B 6968 6449 42 42 0.60% 0.65%
C 6968 6449 0 0 0.00% 0.00%
D 6968 6449 59 59 0.85% 0.91%

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 5 125496 798.33 764 746 156.3
A 4 2 42187 265.2 764 746 156.3
A 8 15 28434 177.19 764 746 156.3
B 4 239 421593 2918.85 761 744 144.2
B 11 51 52716 360.46 761 744 144.2
B 0 214 44216 301.51 761 744 144.2
C 14 234 10208 55.01 742 746 172.0
C 12 4 7813 41.09 742 746 172.0
C 13 61 5613 28.3 742 746 172.0
D 2 33 204356 1153.71 738 717 176.5
D 8 195 173645 979.72 738 717 176.5
D 2 14 71851 403.01 738 717 176.5

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