ASTROSAT CZTI

Data Quality Report

Orbit 47031

Creation date: 2024-06-27T23:30:58.895648
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/AS1C09_005T01_9000006296_47031cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47031cztM0_level2_quad_clean.evt
Size (bytes)652,478,400122,806,080
Size622.3 MB 117.1 MB
Events in quadrant A7,723,962850,590
Events in quadrant B8,229,718693,565
Events in quadrant C3,587,758839,545
Events in quadrant D3,987,789775,191

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0283860
B0300030
C0168830
D0179870

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A80402573.196517%
B8041183222.783236%
C8041430.534759%
D80411011.256063%

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 8040 8040 6 6 0.07% 0.07%
B 8041 8041 1174 1174 14.60% 14.60%
C 8041 8041 33 33 0.41% 0.41%
D 8041 8041 63 63 0.78% 0.78%

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 10 83 4125105 22242.36 892 871 185.4
A 9 191 107116 572.99 892 871 185.4
A 13 248 18694 96.12 892 871 185.4
B 3 112 2969581 18823.34 798 772 157.7
B 4 171 1131660 7170.25 798 772 157.7
B 15 201 698881 4426.27 798 772 157.7
C 14 254 166550 813.07 869 870 203.8
C 12 250 18291 85.49 869 870 203.8
C 0 207 7909 34.54 869 870 203.8
D 1 52 171245 775.75 871 843 219.7
D 12 233 160448 726.6 871 843 219.7
D 13 249 125569 567.81 871 843 219.7

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