ASTROSAT CZTI

Data Quality Report

Orbit 43068

Creation date: 2024-06-27T22:47:35.781024
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/AS1C07_001T10_9000005844_43068cztM0_level2.fits modeM0/AS1C07_001T10_9000005844_43068cztM0_level2_quad_clean.evt
Size (bytes)381,663,36088,508,160
Size364.0 MB 84.4 MB
Events in quadrant A3,355,871621,786
Events in quadrant B3,024,348612,048
Events in quadrant C2,466,365579,804
Events in quadrant D4,898,273521,058

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131274
B0121222
C0101222
D0178852

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A49251162.355330%
B49252154.365482%
C492550.101523%
D49254348.812183%

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 7016 4926 74 74 1.05% 1.50%
B 7016 4926 123 123 1.75% 2.50%
C 7016 4926 2 2 0.03% 0.04%
D 7016 4926 351 351 5.00% 7.13%

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 596145 5164.99 569 556 115.3
A 15 222 198621 1717.63 569 556 115.3
A 15 237 190789 1649.71 569 556 115.3
B 0 229 659000 6315.26 552 539 104.3
B 0 155 51332 487.15 552 539 104.3
B 4 171 34662 327.27 552 539 104.3
C 15 214 225119 1793.58 545 549 125.2
C 1 128 57929 458.28 545 549 125.2
C 0 207 20464 159.06 545 549 125.2
D 1 52 993983 7677.97 538 526 129.4
D 2 16 804696 6215.06 538 526 129.4
D 13 249 634760 4901.7 538 526 129.4

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