ASTROSAT CZTI

Data Quality Report

Orbit 42672

Creation date: 2024-06-27T22:42:52.987817
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/AS1A05_013T01_9000005822_42672cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42672cztM0_level2_quad_clean.evt
Size (bytes)319,991,04090,498,240
Size305.2 MB 86.3 MB
Events in quadrant A2,968,277607,327
Events in quadrant B2,738,754613,878
Events in quadrant C2,712,061588,570
Events in quadrant D2,991,292540,116

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121492
B0119932
C0116672
D0130272

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0230
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01140
B01140
C01140
D01140

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5577160.286893%
B5577460.824816%
C5577160.286893%
D55771212.169625%

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 7190 5578 6 6 0.08% 0.11%
B 7190 5578 32 32 0.45% 0.57%
C 7190 5578 8 8 0.11% 0.14%
D 7190 5578 106 106 1.47% 1.90%

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 599163 4828.21 606 593 124.0
A 13 6 9478 71.67 606 593 124.0
A 15 223 8870 66.76 606 593 124.0
B 0 245 129940 1092.06 601 584 118.5
B 0 229 110440 927.44 601 584 118.5
B 10 246 54462 454.86 601 584 118.5
C 15 214 232141 1685.55 585 589 137.4
C 14 254 85677 619.39 585 589 137.4
C 3 233 53765 387.09 585 589 137.4
D 2 249 299972 2097.87 582 564 142.7
D 12 233 269820 1886.6 582 564 142.7
D 1 47 46219 319.89 582 564 142.7

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