ASTROSAT CZTI

Data Quality Report

Orbit 13629

Creation date: 2024-06-27T16:43:40.808005
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_038T01_9000002018_13629cztM0_level2.evt modeM0/AS1G08_038T01_9000002018_13629cztM0_level2_quad_clean.evt
Size (bytes)569,934,720102,268,800
Size543.5 MB 97.5 MB
Events in quadrant A3,440,702611,776
Events in quadrant B3,996,972630,150
Events in quadrant C3,754,377697,906
Events in quadrant D5,564,417639,883

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153073
B0169562
C0156492
D0216772

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7433470.632315%
B74331772.381273%
C7433460.618862%
D74331602.152563%

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 9124 7436 1 1 0.01% 0.01%
B 9124 7436 55 55 0.60% 0.74%
C 9124 7436 0 0 0.00% 0.00%
D 9124 7436 66 66 0.72% 0.89%

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 15946 83.66 885 865 180.3
A 15 69 12410 64.05 885 865 180.3
A 0 226 7987 39.51 885 865 180.3
B 0 219 282912 1656.52 885 859 170.3
B 3 64 138137 806.25 885 859 170.3
B 0 214 48294 278.59 885 859 170.3
C 3 233 278600 1351.86 889 897 205.4
C 0 207 6382 26.7 889 897 205.4
C 13 61 6284 26.22 889 897 205.4
D 13 122 1823767 8740.03 869 847 208.6
D 8 195 151203 720.89 869 847 208.6
D 5 222 110161 524.11 869 847 208.6

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