ASTROSAT CZTI

Data Quality Report

Orbit 30243

Creation date: 2024-06-27T20:12:36.173781
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/AS1A10_007T01_9000004350_30243cztM0_level2.evt modeM0/AS1A10_007T01_9000004350_30243cztM0_level2_quad_clean.evt
Size (bytes)604,751,04090,835,200
Size576.7 MB 86.6 MB
Events in quadrant A3,907,308557,683
Events in quadrant B5,802,409562,840
Events in quadrant C3,843,477557,078
Events in quadrant D4,251,729548,894

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164410
B0230510
C0158680
D0173070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75302693.572377%
B75312953.917142%
C75312202.921259%
D75311311.739477%

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 7530 7530 59 59 0.78% 0.78%
B 7531 7531 2 2 0.03% 0.03%
C 7531 7531 0 0 0.00% 0.00%
D 7531 7531 8 8 0.11% 0.11%

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 13 266394 1380.54 940 917 192.3
A 13 254 14373 69.97 940 917 192.3
A 3 137 9919 46.81 940 917 192.3
B 6 159 2129474 11655.99 925 898 182.6
B 12 111 22614 118.92 925 898 182.6
B 11 111 20913 109.6 925 898 182.6
C 14 238 145697 669.81 912 918 216.1
C 3 233 102056 467.91 912 918 216.1
C 2 114 17824 78.21 912 918 216.1
D 8 195 666417 2905.71 922 898 229.0
D 2 234 34524 146.81 922 898 229.0
D 1 52 29666 125.6 922 898 229.0

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