ASTROSAT CZTI

Data Quality Report

Orbit 05267

Creation date: 2024-06-27T14:53:18.882093
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/AS1G05_240T02_9000000670_05267cztM0_level2.evt modeM0/AS1G05_240T02_9000000670_05267cztM0_level2_quad_clean.evt
Size (bytes)39,107,5208,951,040
Size37.3 MB 8.5 MB
Events in quadrant A303,34457,172
Events in quadrant B235,19660,787
Events in quadrant C229,82158,770
Events in quadrant D378,66950,907

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0188
B0199
C0199
D0164

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A072
B072
C072
D084

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02084863
B01697671
C01686673
D026361180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49361.217039%
B50700.000000%
C50600.000000%
D486459.259259%

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 558 519 7 7 1.25% 1.35%
B 569 538 0 0 0.00% 0.00%
C 582 535 0 0 0.00% 0.00%
D 556 511 35 35 6.29% 6.85%

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 13 251 87020 6426.22 55 54 13.5
A 0 50 1397 99.24 55 54 13.5
A 0 226 499 32.88 55 54 13.5
B 15 54 2005 145.21 59 57 13.4
B 0 219 1524 109.36 59 57 13.4
B 12 111 1085 76.63 59 57 13.4
C 1 16 1629 101.51 58 58 15.5
C 15 1 550 31.79 58 58 15.5
C 13 61 463 26.17 58 58 15.5
D 11 145 176238 12178.08 51 49 14.5
D 2 206 4409 301.36 51 49 14.5
D 12 221 1915 128.98 51 49 14.5

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