ASTROSAT CZTI

Data Quality Report

Orbit 10592

Creation date: 2024-06-27T16:01:13.067681
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/AS1T01_191T01_9000001536_10592cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10592cztM0_level2_quad_clean.evt
Size (bytes)462,493,44087,877,440
Size441.1 MB 83.8 MB
Events in quadrant A2,760,985582,856
Events in quadrant B4,660,398551,421
Events in quadrant C2,944,326575,415
Events in quadrant D3,247,131545,989

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120462
B0176191
C0127891
D0134891

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5790230.397237%
B57905549.568221%
C5790601.036269%
D5790530.915371%

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 6945 5790 0 0 0.00% 0.00%
B 6945 5790 419 419 6.03% 7.24%
C 6945 5790 63 63 0.91% 1.09%
D 6945 5790 57 57 0.82% 0.98%

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 15 239 27363 186.19 696 684 143.3
A 13 251 13361 88.47 696 684 143.3
A 1 162 12520 82.6 696 684 143.3
B 4 239 1730120 13445.64 675 664 128.6
B 11 51 129488 1001.54 675 664 128.6
B 0 219 54275 416.8 675 664 128.6
C 15 48 297587 1927.08 665 671 154.1
C 14 234 26259 166.07 665 671 154.1
C 4 175 12675 77.91 665 671 154.1
D 5 222 299668 1862.88 659 643 160.5
D 8 195 224927 1397.26 659 643 160.5
D 13 249 88879 549.7 659 643 160.5

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