ASTROSAT CZTI

Data Quality Report

Orbit 47495

Creation date: 2024-07-10T09:27:14.074687
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/AS1A13_089T01_9000006330_47495cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47495cztM0_level2_quad_clean.evt
Size (bytes)580,510,080119,422,080
Size553.6 MB 113.9 MB
Events in quadrant A7,583,145794,923
Events in quadrant B5,758,794777,064
Events in quadrant C3,511,650793,598
Events in quadrant D4,041,003717,319

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0275710
B0222730
C0161830
D0176550

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76641582.061587%
B76656969.080235%
C7665330.430528%
D76651521.983040%

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 7664 7664 30 30 0.39% 0.39%
B 7665 7665 429 429 5.60% 5.60%
C 7665 7665 19 19 0.25% 0.25%
D 7665 7665 131 131 1.71% 1.71%

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 3912257 21707.85 856 837 180.2
A 15 235 264184 1461.54 856 837 180.2
A 9 191 67343 369.1 856 837 180.2
B 5 32 1856313 11123.63 837 809 166.8
B 0 200 460389 2755.15 837 809 166.8
B 0 198 53178 313.95 837 809 166.8
C 0 207 132554 655.27 846 849 201.0
C 14 254 71653 352.27 846 849 201.0
C 12 250 8078 35.97 846 849 201.0
D 7 38 523968 2449.46 837 811 213.6
D 2 165 84913 393.77 837 811 213.6
D 2 249 65252 301.72 837 811 213.6

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