ASTROSAT CZTI

Data Quality Report

Orbit 10998

Creation date: 2024-06-27T16:06:43.271154
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_027T06_9000001594_10998cztM0_level2.evt modeM0/AS1G08_027T06_9000001594_10998cztM0_level2_quad_clean.evt
Size (bytes)539,110,08065,085,120
Size514.1 MB 62.1 MB
Events in quadrant A3,515,512423,287
Events in quadrant B4,222,722423,023
Events in quadrant C2,795,643419,704
Events in quadrant D5,403,899302,661

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140602
B0163011
C0120091
D0198681

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A57431753.047188%
B57433866.721226%
C5743560.975100%
D574396616.820477%

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 6963 5743 97 97 1.39% 1.69%
B 6963 5743 189 189 2.71% 3.29%
C 6963 5743 0 0 0.00% 0.00%
D 6963 5743 750 750 10.77% 13.06%

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 8 5 487233 3285.5 737 723 148.1
A 14 254 175411 1179.7 737 723 148.1
A 8 15 7950 48.81 737 723 148.1
B 4 239 1290279 9349.07 729 714 137.9
B 0 214 31564 223.66 729 714 137.9
B 15 204 26107 184.09 729 714 137.9
C 1 3 5917 31.49 715 721 165.0
C 13 61 5360 28.12 715 721 165.0
C 12 4 3457 16.58 715 721 165.0
D 1 52 2509945 16879.95 625 609 148.7
D 8 195 199396 1337.21 625 609 148.7
D 13 152 167152 1120.31 625 609 148.7

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