ASTROSAT CZTI

Data Quality Report

Orbit 23362

Creation date: 2024-06-27T18:53:19.730751
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/AS1A07_135T01_9000003452_23362cztM0_level2.evt modeM0/AS1A07_135T01_9000003452_23362cztM0_level2_quad_clean.evt
Size (bytes)295,407,36035,550,720
Size281.7 MB 33.9 MB
Events in quadrant A1,888,704209,762
Events in quadrant B1,958,657211,648
Events in quadrant C2,276,277203,458
Events in quadrant D2,581,548200,393

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0720
B0720
C0720
D0720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A077970
B079790
C094130
D0100850

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A353260.169875%
B353390.254741%
C3533391.103878%
D3533411.160487%

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 3532 3532 0 0 0.00% 0.00%
B 3533 3533 3 3 0.08% 0.08%
C 3533 3533 0 0 0.00% 0.00%
D 3533 3533 37 37 1.05% 1.05%

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 13 254 5186 48.13 490 482 97.7
A 0 226 4331 39.38 490 482 97.7
A 3 137 3887 34.84 490 482 97.7
B 0 189 18931 203.77 484 475 90.6
B 0 190 16146 173.02 484 475 90.6
B 0 228 14329 152.96 484 475 90.6
C 0 239 314249 2865.36 474 480 109.5
C 14 238 77420 702.62 474 480 109.5
C 7 247 32761 294.79 474 480 109.5
D 1 52 360837 3069.17 481 468 117.4
D 9 85 335122 2850.16 481 468 117.4
D 6 112 30231 253.48 481 468 117.4

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