ASTROSAT CZTI

Data Quality Report

Orbit 13665

Creation date: 2024-06-27T16:44:13.923578
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/AS1G08_070T01_9000002028_13665cztM0_level2.evt modeM0/AS1G08_070T01_9000002028_13665cztM0_level2_quad_clean.evt
Size (bytes)299,793,60056,232,000
Size285.9 MB 53.6 MB
Events in quadrant A1,738,446378,346
Events in quadrant B2,385,751399,973
Events in quadrant C1,855,713356,550
Events in quadrant D2,876,214335,411

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0680
B0680
C0680
D0680

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A070102
B092431
C073861
D0106971

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3268822.509180%
B32681645.018360%
C3268481.468788%
D32682848.690330%

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 4429 3270 1 1 0.02% 0.03%
B 4429 3270 23 23 0.52% 0.70%
C 4429 3270 2 2 0.05% 0.06%
D 4429 3270 230 230 5.19% 7.03%

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 1 162 6397 64.41 448 438 92.5
A 15 69 5011 49.43 448 438 92.5
A 0 226 3931 37.75 448 438 92.5
B 0 219 437879 5036.09 449 441 86.9
B 3 64 128454 1473.77 449 441 86.9
B 0 229 44000 501.48 449 441 86.9
C 3 233 172723 1707.74 427 431 100.9
C 14 234 10750 102.28 427 431 100.9
C 8 128 3780 33.2 427 431 100.9
D 12 110 552304 5340.22 422 410 103.3
D 5 222 371762 3593.26 422 410 103.3
D 1 52 200889 1939.87 422 410 103.3

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