ASTROSAT CZTI

Data Quality Report

Orbit 45476

Creation date: 2024-06-27T23:12:39.508817
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_042T03_9000006094_45476cztM0_level2.fits modeM0/AS1A13_042T03_9000006094_45476cztM0_level2_quad_clean.evt
Size (bytes)463,320,000116,182,080
Size441.9 MB 110.8 MB
Events in quadrant A5,952,128757,206
Events in quadrant B3,521,533806,280
Events in quadrant C3,213,540769,817
Events in quadrant D3,921,499698,180

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0229492
B0153352
C0146302
D0167342

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69772743.927189%
B69771402.006593%
C6977520.745306%
D69771081.547943%

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 9197 6979 25 25 0.27% 0.36%
B 9197 6979 27 27 0.29% 0.39%
C 9197 6979 7 7 0.08% 0.10%
D 9197 6979 47 47 0.51% 0.67%

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 2811110 16933.42 798 782 166.0
A 13 248 50291 298.31 798 782 166.0
A 3 137 9344 51.59 798 782 166.0
B 12 18 69954 433.1 809 786 159.7
B 0 189 65604 405.86 809 786 159.7
B 5 172 46457 285.97 809 786 159.7
C 3 233 33805 175.06 797 800 188.5
C 14 254 29965 154.7 797 800 188.5
C 12 249 16593 83.77 797 800 188.5
D 11 241 311511 1572.67 787 764 197.6
D 1 52 241050 1216.07 787 764 197.6
D 13 249 159024 800.94 787 764 197.6

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