ASTROSAT CZTI

Data Quality Report

Orbit 06435

Creation date: 2024-06-27T15:07:10.793663
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/AS1A02_191T02_9000000852_06435cztM0_level2.evt modeM0/AS1A02_191T02_9000000852_06435cztM0_level2_quad_clean.evt
Size (bytes)186,554,88029,039,040
Size177.9 MB 27.7 MB
Events in quadrant A1,284,811166,043
Events in quadrant B1,455,956167,691
Events in quadrant C1,296,315168,785
Events in quadrant D1,406,650162,549

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0600
B0600
C0600
D0600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060651
B065491
C060521
D064201

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A299820.066711%
B2998140.466978%
C299860.200133%
D2998130.433622%

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 2997 2997 0 0 0.00% 0.00%
B 2997 2997 0 0 0.00% 0.00%
C 2997 2997 0 0 0.00% 0.00%
D 2997 2997 11 11 0.37% 0.37%

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 10 133 4324 58.33 330 322 68.6
A 8 15 4139 55.63 330 322 68.6
A 0 226 3142 41.1 330 322 68.6
B 0 228 90197 1351.2 337 330 66.5
B 15 204 21576 319.44 337 330 66.5
B 3 220 15449 227.32 337 330 66.5
C 8 128 9237 113.35 328 329 78.6
C 8 112 4088 47.83 328 329 78.6
C 8 144 3216 36.73 328 329 78.6
D 2 152 78924 954.46 324 312 82.4
D 13 169 44596 537.67 324 312 82.4
D 13 172 14195 168.56 324 312 82.4

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