ASTROSAT CZTI

Data Quality Report

Orbit 05262

Creation date: 2024-06-27T14:53:15.513409
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_05262cztM0_level2.evt modeM0/AS1G05_240T02_9000000670_05262cztM0_level2_quad_clean.evt
Size (bytes)26,245,4404,276,800
Size25.0 MB 4.1 MB
Events in quadrant A184,27424,968
Events in quadrant B188,86227,965
Events in quadrant C184,20826,278
Events in quadrant D216,92423,848

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0124
B0124
C0128
D0124

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01423728
B01410706
C01475773
D01719908

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A24614558.943089%
B25615259.375000%
C23711347.679325%
D24214057.851240%

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 606 327 0 0 0.00% 0.00%
B 603 339 0 0 0.00% 0.00%
C 601 315 0 0 0.00% 0.00%
D 606 322 3 3 0.50% 0.93%

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 4700 365.55 46 45 12.7
A 12 194 503 35.97 46 45 12.7
A 0 226 410 28.66 46 45 12.7
B 12 111 1133 83.19 48 46 13.1
B 11 111 921 66.97 48 46 13.1
B 14 111 595 42.02 48 46 13.1
C 7 159 1352 95.42 46 45 13.7
C 8 128 775 53.29 46 45 13.7
C 1 16 676 46.07 46 45 13.7
D 11 145 36213 2587.79 46 44 14.0
D 8 195 4913 348.36 46 44 14.0
D 13 53 1587 110.4 46 44 14.0

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