ASTROSAT CZTI

Data Quality Report

Orbit 28279

Creation date: 2024-06-27T19:49:59.541298
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/AS1A10_102T06_9000004078_28279cztM0_level2.evt modeM0/AS1A10_102T06_9000004078_28279cztM0_level2_quad_clean.evt
Size (bytes)516,833,28081,864,000
Size492.9 MB 78.1 MB
Events in quadrant A3,038,106523,231
Events in quadrant B3,176,220528,514
Events in quadrant C3,109,641510,164
Events in quadrant D5,896,318472,652

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132890
B0137230
C0134890
D0218730

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6366430.675463%
B6365721.131186%
C6365791.241163%
D636666110.383286%

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 7381 6366 0 0 0.00% 0.00%
B 7380 6365 14 14 0.19% 0.22%
C 7380 6365 0 0 0.00% 0.00%
D 7381 6366 544 544 7.37% 8.55%

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 13 254 12069 71.68 783 767 157.7
A 3 137 7558 43.07 783 767 157.7
A 12 96 6868 38.69 783 767 157.7
B 15 32 48338 329.15 776 757 144.6
B 4 52 28776 193.83 776 757 144.6
B 4 200 21515 143.6 776 757 144.6
C 14 238 121430 678.56 757 761 177.8
C 3 233 31900 175.11 757 761 177.8
C 15 208 7159 35.98 757 761 177.8
D 1 52 1839384 10481.78 733 712 175.4
D 12 250 643000 3661.51 733 712 175.4
D 8 195 358794 2041.33 733 712 175.4

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