ASTROSAT CZTI

Data Quality Report

Orbit 03281

Creation date: 2024-06-27T14:27:04.481671
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_228T02_9000000446_03281cztM0_level2.evt modeM0/AS1G05_228T02_9000000446_03281cztM0_level2_quad_clean.evt
Size (bytes)34,885,4404,026,240
Size33.3 MB 3.8 MB
Events in quadrant A182,79224,228
Events in quadrant B188,72324,960
Events in quadrant C212,88723,161
Events in quadrant D447,39818,995

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07731
B07620
C08500
D015510

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A312175.448718%
B31200.000000%
C312144.487179%
D31211336.217949%

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 312 312 13 13 4.17% 4.17%
B 312 312 0 0 0.00% 0.00%
C 312 312 13 13 4.17% 4.17%
D 312 312 105 105 33.65% 33.65%

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 50 51802 5859.88 32 31 8.8
A 0 118 5179 582.69 32 31 8.8
A 0 226 799 86.93 32 31 8.8
B 15 204 56810 6365.96 33 33 8.9
B 14 167 1173 127.82 33 33 8.9
B 12 111 404 41.6 33 33 8.9
C 1 192 80156 8824.17 30 30 9.1
C 6 80 11467 1259.54 30 30 9.1
C 14 223 1260 135.46 30 30 9.1
D 13 223 341068 41410.54 26 25 8.2
D 5 233 2003 240.18 26 25 8.2
D 2 118 1529 182.62 26 25 8.2

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