ASTROSAT CZTI

Data Quality Report

Orbit 08149

Creation date: 2024-06-27T15:28:42.086587
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/AS1G06_028T01_9000001122_08149cztM0_level2.evt modeM0/AS1G06_028T01_9000001122_08149cztM0_level2_quad_clean.evt
Size (bytes)246,309,12038,036,160
Size234.9 MB 36.3 MB
Events in quadrant A1,671,379229,399
Events in quadrant B1,773,993232,541
Events in quadrant C1,799,864233,113
Events in quadrant D1,989,952223,511

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A069532
B073631
C076011
D081771

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3274772.351863%
B3274822.504582%
C3274682.076970%
D32741083.298717%

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 4554 3275 0 0 0.00% 0.00%
B 4554 3275 0 0 0.00% 0.00%
C 4554 3275 0 0 0.00% 0.00%
D 4554 3275 24 24 0.53% 0.73%

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 0 226 4105 41.48 433 424 88.7
A 12 194 3933 39.54 433 424 88.7
A 13 254 2206 20.08 433 424 88.7
B 0 219 27360 320.84 434 425 84.0
B 0 213 24230 283.56 434 425 84.0
B 4 173 10371 118.47 434 425 84.0
C 1 16 158401 1617.58 420 423 97.7
C 13 61 3260 29.05 420 423 97.7
C 14 234 1220 8.16 420 423 97.7
D 1 52 293108 2836.57 418 408 103.2
D 2 136 53935 518.73 418 408 103.2
D 7 71 31495 301.27 418 408 103.2

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