ASTROSAT CZTI

Data Quality Report

Orbit 19362

Creation date: 2024-06-27T18:01:50.732607
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/AS1A05_204T01_9000002856_19362cztM0_level2.evt modeM0/AS1A05_204T01_9000002856_19362cztM0_level2_quad_clean.evt
Size (bytes)370,926,72032,610,240
Size353.7 MB 31.1 MB
Events in quadrant A1,615,313212,153
Events in quadrant B1,661,535212,732
Events in quadrant C1,608,279200,966
Events in quadrant D6,109,318112,256

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070250
B071170
C070350
D0205950

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0700
B0700
C0700
D0700

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A350350.142735%
B350450.142694%
C350470.199772%
D3504173349.457763%

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 3503 3503 0 0 0.00% 0.00%
B 3504 3504 0 0 0.00% 0.00%
C 3504 3504 0 0 0.00% 0.00%
D 3504 3504 1603 1603 45.75% 45.75%

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 3907 40.66 419 411 86.0
A 0 226 3660 37.79 419 411 86.0
A 3 137 3377 34.5 419 411 86.0
B 0 190 17407 211.07 416 406 80.5
B 12 111 9801 116.64 416 406 80.5
B 11 111 8793 104.13 416 406 80.5
C 14 238 63161 672.35 394 397 93.4
C 3 233 6562 66.04 394 397 93.4
C 13 61 2763 25.35 394 397 93.4
D 10 66 2489710 33263.39 300 292 74.8
D 7 238 2346362 31347.99 300 292 74.8
D 11 176 59545 791.73 300 292 74.8

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