ASTROSAT CZTI

Data Quality Report

Orbit 04543

Creation date: 2024-06-27T14:43:32.219335
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/AS1G05_250T01_9000000568_04543cztM0_level2.evt modeM0/AS1G05_250T01_9000000568_04543cztM0_level2_quad_clean.evt
Size (bytes)527,163,84084,107,520
Size502.7 MB 80.2 MB
Events in quadrant A6,014,640499,278
Events in quadrant B3,090,878551,682
Events in quadrant C3,324,538535,662
Events in quadrant D3,106,827519,789

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223013
B0134222
C0144002
D0138702

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6309118918.846093%
B6309661.046125%
C63091151.822793%
D6309460.729117%

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 8774 6310 657 657 7.49% 10.41%
B 8774 6310 9 9 0.10% 0.14%
C 8774 6310 60 60 0.68% 0.95%
D 8774 6311 27 27 0.31% 0.43%

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 0 13 3289486 24105.0 667 653 136.4
A 15 31 78595 571.26 667 653 136.4
A 0 118 51392 371.88 667 653 136.4
B 4 80 136006 961.13 746 730 140.7
B 4 48 29595 205.08 746 730 140.7
B 15 204 14785 99.86 746 730 140.7
C 14 48 504418 3071.54 712 716 164.0
C 1 16 16527 96.41 712 716 164.0
C 9 247 12860 74.05 712 716 164.0
D 1 20 159698 878.0 698 682 181.1
D 2 136 71181 389.26 698 682 181.1
D 13 235 70080 383.18 698 682 181.1

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