ASTROSAT CZTI

Data Quality Report

Orbit 31209

Creation date: 2024-06-27T20:25:01.490358
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_103T02_9000004514_31209cztM0_level2.evt modeM0/AS1A10_103T02_9000004514_31209cztM0_level2_quad_clean.evt
Size (bytes)396,181,44066,317,760
Size377.8 MB 63.2 MB
Events in quadrant A1,738,890471,210
Events in quadrant B3,335,363446,907
Events in quadrant C1,977,358439,488
Events in quadrant D4,717,286410,441

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073380
B0122390
C080950
D0164400

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A338280.236546%
B33823149.284447%
C3382812.395033%
D338350815.016258%

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 3382 3382 0 0 0.00% 0.00%
B 3382 3382 269 269 7.95% 7.95%
C 3382 3382 56 56 1.66% 1.66%
D 3383 3383 623 623 18.42% 18.42%

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 6010 62.1 451 444 89.6
A 3 137 3923 38.82 451 444 89.6
A 0 226 3763 37.03 451 444 89.6
B 6 159 857155 10592.14 431 424 80.9
B 4 80 685721 8472.62 431 424 80.9
B 0 190 60256 739.73 431 424 80.9
C 10 22 263035 2728.96 416 419 96.2
C 14 238 71673 740.43 416 419 96.2
C 3 233 8474 83.7 416 419 96.2
D 8 195 3080686 29093.86 413 406 105.9
D 2 120 27454 255.47 413 406 105.9
D 2 234 15250 140.2 413 406 105.9

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