ASTROSAT CZTI

Data Quality Report

Orbit 15286

Creation date: 2024-06-27T17:06:16.185377
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/AS1A04_223T01_9000002258_15286cztM0_level2.evt modeM0/AS1A04_223T01_9000002258_15286cztM0_level2_quad_clean.evt
Size (bytes)454,680,00090,406,080
Size433.6 MB 86.2 MB
Events in quadrant A3,132,178587,558
Events in quadrant B3,898,817582,683
Events in quadrant C3,252,898577,086
Events in quadrant D3,056,075548,811

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134213
B0156042
C0136152
D0134992

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6330741.169036%
B63303054.818325%
C6330470.742496%
D6330560.884676%

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 7566 6332 1 1 0.01% 0.02%
B 7566 6332 131 131 1.73% 2.07%
C 7566 6332 0 0 0.00% 0.00%
D 7566 6332 6 6 0.08% 0.09%

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 9 143 12847 73.72 810 794 163.5
A 0 226 7252 39.5 810 794 163.5
A 12 194 6095 32.42 810 794 163.5
B 10 16 476951 3150.15 799 782 151.2
B 4 142 81977 537.15 799 782 151.2
B 0 219 57476 375.07 799 782 151.2
C 3 233 215144 1196.97 778 782 179.1
C 13 61 5513 26.42 778 782 179.1
C 14 234 3548 15.44 778 782 179.1
D 10 70 41642 214.35 779 757 190.7
D 2 33 26192 133.35 779 757 190.7
D 2 234 24276 123.3 779 757 190.7

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