ASTROSAT CZTI

Data Quality Report

Orbit 48089

Creation date: 2024-08-19T12:11:39.050523
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/AS1A13_071T07_9000006398_48089cztM0_level2.fits modeM0/AS1A13_071T07_9000006398_48089cztM0_level2_quad_clean.evt
Size (bytes)475,269,12099,961,920
Size453.3 MB 95.3 MB
Events in quadrant A8,030,995837,487
Events in quadrant B1,444,636112
Events in quadrant C3,721,865843,903
Events in quadrant D3,746,785773,726

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01640
B01640
C01640
D01640

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0295071
B088490
C0174020
D0175520

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82212843.454568%
B8221822099.987836%
C82211011.228561%
D8221620.754166%

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 8221 8221 6 6 0.07% 0.07%
B 8220 8220 0 0 0.00% 0.00%
C 8221 8221 25 25 0.30% 0.30%
D 8221 8221 13 13 0.16% 0.16%

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 4454965 23548.25 903 879 189.1
A 14 248 41187 213.1 903 879 189.1
A 7 3 28528 146.18 903 879 189.1
B 2 177 1132061 79360.2 59 57 14.3
B 4 21 40274 2819.45 59 57 14.3
B 5 255 17945 1254.05 59 57 14.3
C 14 254 139381 653.75 904 908 211.8
C 12 250 23163 105.07 904 908 211.8
C 12 249 12410 54.3 904 908 211.8
D 11 224 182494 815.56 896 866 222.7
D 2 165 48775 215.12 896 866 222.7
D 2 234 44869 197.59 896 866 222.7

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