ASTROSAT CZTI

Data Quality Report

Orbit 45213

Creation date: 2024-06-27T23:10:39.700264
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_049T06_9000006054_45213cztM0_level2.fits modeM0/AS1A13_049T06_9000006054_45213cztM0_level2_quad_clean.evt
Size (bytes)479,744,640113,705,280
Size457.5 MB 108.4 MB
Events in quadrant A5,519,074755,137
Events in quadrant B4,294,615772,642
Events in quadrant C3,180,776781,749
Events in quadrant D4,266,255686,206

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0209622
B0169242
C0136302
D0170252

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0150
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64141933.009043%
B64143745.830995%
C6414370.576863%
D64142694.193951%

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 7629 6415 42 42 0.55% 0.65%
B 7629 6415 259 259 3.39% 4.04%
C 7629 6415 6 6 0.08% 0.09%
D 7629 6415 204 204 2.67% 3.18%

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 2480529 16017.7 752 737 154.8
A 15 174 76303 488.1 752 737 154.8
A 13 248 30319 191.08 752 737 154.8
B 4 171 1027641 7104.29 749 725 144.5
B 3 112 141119 971.26 749 725 144.5
B 10 3 57532 393.0 749 725 144.5
C 12 2 156433 866.96 767 773 179.5
C 3 233 13555 71.19 767 773 179.5
C 12 250 11559 60.07 767 773 179.5
D 13 249 832344 4429.31 747 725 187.8
D 5 222 112424 594.92 747 725 187.8
D 2 249 108590 574.5 747 725 187.8

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