ASTROSAT CZTI

Data Quality Report

Orbit 47068

Creation date: 2024-06-27T23:31:20.543759
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/AS1C09_005T01_9000006296_47068cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47068cztM0_level2_quad_clean.evt
Size (bytes)462,041,280108,728,640
Size440.6 MB 103.7 MB
Events in quadrant A6,034,644718,584
Events in quadrant B4,273,416736,030
Events in quadrant C2,953,486729,801
Events in quadrant D3,352,746667,679

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0121
C0121
D0132

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01344
B01344
C01344
D01344

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0231371199
B017364569
C013582381
D014615398

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62711712.726838%
B62962353.732529%
C6327610.964122%
D6317901.424727%

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 7584 6294 15 15 0.20% 0.24%
B 7532 6320 96 96 1.27% 1.52%
C 7600 6368 18 18 0.24% 0.28%
D 7573 6356 44 44 0.58% 0.69%

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 3232830 21983.49 717 702 147.0
A 13 254 10721 68.14 717 702 147.0
A 0 243 9744 61.5 717 702 147.0
B 3 112 1252350 9135.22 709 687 137.0
B 5 255 77301 559.16 709 687 137.0
B 0 198 47069 338.51 709 687 137.0
C 14 254 84283 493.85 726 730 169.2
C 12 249 35424 205.06 726 730 169.2
C 5 4 5019 25.35 726 730 169.2
D 13 249 221543 1230.86 727 706 179.4
D 2 249 129353 717.03 727 706 179.4
D 7 96 42405 232.41 727 706 179.4

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