ASTROSAT CZTI

Data Quality Report

Orbit 31385

Creation date: 2024-06-27T20:27:35.023410
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_064T05_9000004548_31385cztM0_level2.evt modeM0/AS1A10_064T05_9000004548_31385cztM0_level2_quad_clean.evt
Size (bytes)275,857,92031,795,200
Size263.1 MB 30.3 MB
Events in quadrant A1,715,262184,088
Events in quadrant B2,707,660181,721
Events in quadrant C1,749,034173,092
Events in quadrant D1,942,860174,659

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A071550
B0107040
C072460
D079890

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A350880.228050%
B3508170.484607%
C3508441.254276%
D350830.085519%

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 3508 3508 5 5 0.14% 0.14%
B 3508 3508 0 0 0.00% 0.00%
C 3508 3508 1 1 0.03% 0.03%
D 3508 3508 3 3 0.09% 0.09%

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 13 170 20774 228.27 438 431 89.1
A 13 254 6625 69.5 438 431 89.1
A 3 137 4308 43.5 438 431 89.1
B 6 159 913542 10973.81 428 419 83.2
B 0 190 78157 934.25 428 419 83.2
B 4 80 27586 326.49 428 419 83.2
C 14 238 78117 804.87 409 411 96.5
C 0 10 45346 465.43 409 411 96.5
C 14 254 14829 149.34 409 411 96.5
D 8 195 268524 2651.49 421 410 101.1
D 10 203 33250 324.77 421 410 101.1
D 2 250 23397 227.33 421 410 101.1

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