ASTROSAT CZTI

Data Quality Report

Orbit 46102

Creation date: 2024-06-27T23:19:16.498368
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/AS1C07_001T10_9000006170_46102cztM0_level2.fits modeM0/AS1C07_001T10_9000006170_46102cztM0_level2_quad_clean.evt
Size (bytes)867,818,880106,983,360
Size827.6 MB 102.0 MB
Events in quadrant A6,446,439827,960
Events in quadrant B3,778,369863,978
Events in quadrant C3,480,687842,500
Events in quadrant D17,807,437157,183

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0242990
B0167590
C0163390
D0583610

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01580
B01580
C01580
D01580

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7873220.279436%
B7873350.444557%
C7874420.533401%
D7874644681.864364%

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 7873 7873 0 0 0.00% 0.00%
B 7873 7873 12 12 0.15% 0.15%
C 7874 7874 33 33 0.42% 0.42%
D 7874 7873 5729 5729 72.76% 72.77%

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 3060456 17473.0 839 822 175.1
A 3 7 58590 329.9 839 822 175.1
A 7 3 49100 275.71 839 822 175.1
B 0 190 212760 1269.2 848 822 167.0
B 3 112 82061 486.5 848 822 167.0
B 0 155 37894 222.01 848 822 167.0
C 14 254 181156 923.25 838 842 195.3
C 3 233 15284 73.95 838 842 195.3
C 12 2 13358 64.09 838 842 195.3
D 2 37 15226587 163777.22 360 347 93.0
D 1 52 941776 10126.24 360 347 93.0
D 2 249 77446 829.3 360 347 93.0

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