ASTROSAT CZTI

Data Quality Report

Orbit 21629

Creation date: 2024-06-27T18:30:24.748437
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_094T01_9000003204_21629cztM0_level2.evt modeM0/AS1A05_094T01_9000003204_21629cztM0_level2_quad_clean.evt
Size (bytes)332,285,76050,123,520
Size316.9 MB 47.8 MB
Events in quadrant A2,100,950302,778
Events in quadrant B2,370,088307,403
Events in quadrant C2,079,922297,827
Events in quadrant D3,200,964288,421

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A092050
B098820
C091600
D0124920

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0920
B0920
C0920
D0920

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A456230.065761%
B4563280.613631%
C4563130.284900%
D45632856.245891%

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 4562 4562 0 0 0.00% 0.00%
B 4563 4563 20 20 0.44% 0.44%
C 4563 4563 0 0 0.00% 0.00%
D 4563 4563 164 164 3.59% 3.59%

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 15 236 32144 290.95 533 521 108.7
A 5 16 12966 114.5 533 521 108.7
A 13 254 6719 57.03 533 521 108.7
B 0 189 163490 1604.17 528 513 101.6
B 6 36 28219 272.7 528 513 101.6
B 3 64 27635 266.96 528 513 101.6
C 14 238 80624 663.86 511 514 120.7
C 10 22 5772 43.57 511 514 120.7
C 13 61 3537 25.05 511 514 120.7
D 7 38 538363 4346.63 502 489 123.7
D 7 238 393912 3179.3 502 489 123.7
D 1 52 148947 1199.71 502 489 123.7

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