ASTROSAT CZTI

Data Quality Report

Orbit 40188

Creation date: 2024-06-27T22:13:16.234279
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/AS1A12_032T04_9000005528_40188cztM0_level2.fits modeM0/AS1A12_032T04_9000005528_40188cztM0_level2_quad_clean.evt
Size (bytes)368,441,28092,200,320
Size351.4 MB 87.9 MB
Events in quadrant A2,851,246633,147
Events in quadrant B2,636,256651,064
Events in quadrant C2,785,657625,500
Events in quadrant D4,938,234498,373

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118473
B0117412
C0115432
D0185492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0410
B0410
C0410
D0410

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5485190.346399%
B5485310.565178%
C5485140.255242%
D548581414.840474%

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 9551 5487 11 11 0.12% 0.20%
B 9551 5487 12 12 0.13% 0.22%
C 9551 5487 11 11 0.12% 0.20%
D 9551 5487 699 699 7.32% 12.74%

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 83 474964 3888.34 601 592 122.0
A 13 248 50814 411.66 601 592 122.0
A 13 254 6531 48.68 601 592 122.0
B 0 229 122445 1053.82 601 585 115.6
B 5 255 100333 862.6 601 585 115.6
B 4 171 21475 180.65 601 585 115.6
C 15 214 230648 1662.6 596 602 138.4
C 4 254 77949 559.01 596 602 138.4
C 0 10 76302 547.1 596 602 138.4
D 2 249 1364928 10285.86 547 533 132.6
D 12 227 959672 7230.73 547 533 132.6
D 12 79 314166 2364.41 547 533 132.6

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