ASTROSAT CZTI

Data Quality Report

Orbit 41102

Creation date: 2024-06-27T22:24:29.781328
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/AS1A12_044T19_9000005600_41102cztM0_level2.fits modeM0/AS1A12_044T19_9000005600_41102cztM0_level2_quad_clean.evt
Size (bytes)323,377,92092,445,120
Size308.4 MB 88.2 MB
Events in quadrant A2,983,376624,574
Events in quadrant B3,065,688628,485
Events in quadrant C2,805,439597,057
Events in quadrant D2,680,635557,720

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122333
B0129412
C0118702
D0119702

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5587170.304278%
B55871021.825667%
C5587350.626454%
D5587360.644353%

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 7049 5588 4 4 0.06% 0.07%
B 7049 5588 63 63 0.89% 1.13%
C 7049 5588 28 28 0.40% 0.50%
D 7049 5588 23 23 0.33% 0.41%

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 544059 4211.3 625 614 129.0
A 2 79 10248 74.66 625 614 129.0
A 13 254 9813 71.29 625 614 129.0
B 0 186 407273 3355.44 617 600 121.2
B 15 85 95861 785.99 617 600 121.2
B 0 190 84224 689.98 617 600 121.2
C 15 214 239649 1682.26 602 605 142.1
C 0 10 99219 693.99 602 605 142.1
C 14 254 63081 439.67 602 605 142.1
D 2 249 122945 814.98 603 584 150.1
D 13 249 84561 559.33 603 584 150.1
D 9 19 57629 379.95 603 584 150.1

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