ASTROSAT CZTI

Data Quality Report

Orbit 05777

Creation date: 2024-06-27T14:59:01.282373
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/AS1G06_002T01_9000000742_05777cztM0_level2.evt modeM0/AS1G06_002T01_9000000742_05777cztM0_level2_quad_clean.evt
Size (bytes)504,043,20087,716,160
Size480.7 MB 83.7 MB
Events in quadrant A3,557,093536,982
Events in quadrant B4,047,858538,079
Events in quadrant C3,588,692541,790
Events in quadrant D3,566,370522,371

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A016041595
B017238675
C016160555
D016214599

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0231
C0230
D0230

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01542
B01542
C01546
D01546

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74262222.989496%
B74202543.423181%
C74502062.765101%
D74291902.557545%

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 9873 7606 0 0 0.00% 0.00%
B 9873 7604 8 8 0.08% 0.11%
C 9873 7611 0 0 0.00% 0.00%
D 9873 7611 6 6 0.06% 0.08%

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 12 194 9068 43.08 924 904 189.5
A 0 226 8891 42.15 924 904 189.5
A 13 254 2776 9.88 924 904 189.5
B 15 204 312679 1733.76 929 905 179.8
B 15 54 99512 548.35 929 905 179.8
B 4 81 21028 111.9 929 905 179.8
C 1 16 47071 219.76 907 909 210.1
C 13 61 7360 30.71 907 909 210.1
C 8 222 2352 6.87 907 909 210.1
D 8 195 80465 360.66 903 874 220.7
D 2 14 33409 147.43 903 874 220.7
D 2 206 22201 96.64 903 874 220.7

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