ASTROSAT CZTI

Data Quality Report

Orbit 05099

Creation date: 2024-06-27T14:51:18.777342
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_105T01_9000000644_05099cztM0_level2.evt modeM0/AS1G05_105T01_9000000644_05099cztM0_level2_quad_clean.evt
Size (bytes)580,176,00088,513,920
Size553.3 MB 84.4 MB
Events in quadrant A3,373,197574,372
Events in quadrant B3,584,220578,945
Events in quadrant C3,162,482548,385
Events in quadrant D6,968,872484,257

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151243
B0154542
C0146702
D0257082

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71031872.632690%
B71031622.280726%
C71031191.675348%
D7103145620.498381%

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 7178 7105 46 46 0.64% 0.65%
B 7178 7105 22 22 0.31% 0.31%
C 7178 7105 0 0 0.00% 0.00%
D 7178 7105 985 985 13.72% 13.86%

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 111912 661.35 821 801 168.0
A 13 251 101623 600.1 821 801 168.0
A 12 194 8151 43.75 821 801 168.0
B 4 80 163835 1022.78 828 808 159.4
B 4 48 117338 731.07 828 808 159.4
B 4 200 30044 183.42 828 808 159.4
C 8 128 19959 103.45 797 798 185.2
C 12 4 13296 67.48 797 798 185.2
C 8 112 9105 44.85 797 798 185.2
D 12 22 1416931 8029.1 717 694 176.4
D 13 239 1384353 7844.41 717 694 176.4
D 13 235 772185 4373.83 717 694 176.4

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