ASTROSAT CZTI

Data Quality Report

Orbit 43564

Creation date: 2024-06-27T22:53:13.707844
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/AS1A05_174T01_9000005880_43564cztM0_level2.fits modeM0/AS1A05_174T01_9000005880_43564cztM0_level2_quad_clean.evt
Size (bytes)999,912,96080,403,840
Size953.6 MB 76.7 MB
Events in quadrant A5,754,164683,918
Events in quadrant B3,378,956715,283
Events in quadrant C14,170,275458,235
Events in quadrant D13,218,675128,743

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0214534
B0144811
C0464421
D0435941

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63445138.086381%
B63451251.970055%
C6345445170.149724%
D6345634299.952719%

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 6909 6345 300 300 4.34% 4.73%
B 6910 6346 35 35 0.51% 0.55%
C 6910 6345 4365 4365 63.17% 68.79%
D 6909 6344 4224 4224 61.14% 66.58%

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 15 222 1107408 7567.57 700 686 146.2
A 0 228 788844 5389.29 700 686 146.2
A 10 83 624307 4264.21 700 686 146.2
B 3 25 146847 1045.38 715 693 139.8
B 0 230 110429 784.89 715 693 139.8
B 4 251 103945 738.52 715 693 139.8
C 15 142 4805757 42464.16 473 475 113.2
C 15 174 3894069 34407.6 473 475 113.2
C 15 158 1431625 12647.04 473 475 113.2
D 4 216 5627073 106398.68 162 154 52.9
D 4 212 3601364 68094.81 162 154 52.9
D 14 210 667800 12624.43 162 154 52.9

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