ASTROSAT CZTI

Data Quality Report

Orbit 09302

Creation date: 2024-06-27T15:44:17.410513
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/AS1G07_077T04_9000001312_09302cztM0_level2.evt modeM0/AS1G07_077T04_9000001312_09302cztM0_level2_quad_clean.evt
Size (bytes)404,087,04090,406,080
Size385.4 MB 86.2 MB
Events in quadrant A3,275,146581,142
Events in quadrant B2,942,209586,016
Events in quadrant C2,754,943582,669
Events in quadrant D2,857,646569,361

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136822
B0128351
C0123051
D0127701

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5995691.150959%
B5995550.917431%
C5995370.617181%
D5995711.184320%

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 7005 5996 6 6 0.09% 0.10%
B 7005 5996 13 13 0.19% 0.22%
C 7005 5996 0 0 0.00% 0.00%
D 7005 5996 26 26 0.37% 0.43%

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 8 5 466751 3234.53 705 689 144.1
A 1 162 45744 312.69 705 689 144.1
A 5 16 15160 100.43 705 689 144.1
B 0 214 130561 957.96 705 688 135.6
B 4 80 31502 227.29 705 688 135.6
B 3 209 20145 143.52 705 688 135.6
C 9 68 45821 282.61 691 694 159.7
C 14 67 9382 54.41 691 694 159.7
C 13 61 5105 27.62 691 694 159.7
D 1 52 127415 740.33 686 669 171.2
D 2 136 47466 273.34 686 669 171.2
D 7 71 34083 195.17 686 669 171.2

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