ASTROSAT CZTI

Data Quality Report

Orbit 47321

Creation date: 2024-06-28T20:13:19.352736
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_093T23_9000006316_47321cztM0_level2.fits modeM0/AS1A13_093T23_9000006316_47321cztM0_level2_quad_clean.evt
Size (bytes)693,826,560128,963,520
Size661.7 MB 123.0 MB
Events in quadrant A8,188,919866,037
Events in quadrant B3,862,485903,064
Events in quadrant C4,924,634820,744
Events in quadrant D8,079,428749,964

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0307060
B0169850
C0202490
D0297690

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A81212633.238517%
B8121680.837335%
C81223804.678651%
D81225266.476237%

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 8121 8121 10 10 0.12% 0.12%
B 8121 8121 1 1 0.01% 0.01%
C 8122 8122 305 305 3.76% 3.76%
D 8122 8122 528 528 6.50% 6.50%

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 3961968 20268.56 934 912 195.4
A 15 235 374139 1909.79 934 912 195.4
A 9 191 213710 1088.88 934 912 195.4
B 4 171 40879 215.83 933 903 185.2
B 12 111 24469 127.23 933 903 185.2
B 11 111 23226 120.52 933 903 185.2
C 12 2 1194746 5602.54 903 907 213.1
C 14 254 142413 664.07 903 907 213.1
C 3 233 51345 236.7 903 907 213.1
D 6 112 3939939 17319.3 905 878 227.4
D 7 38 172972 756.66 905 878 227.4
D 12 233 128345 560.45 905 878 227.4

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