ASTROSAT CZTI

Data Quality Report

Orbit 11723

Creation date: 2024-06-27T16:17:24.951514
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_006T01_9000001728_11723cztM0_level2.evt modeM0/AS1G08_006T01_9000001728_11723cztM0_level2_quad_clean.evt
Size (bytes)555,589,440124,810,560
Size529.9 MB 119.0 MB
Events in quadrant A5,174,906825,840
Events in quadrant B4,232,321855,634
Events in quadrant C3,166,228854,249
Events in quadrant D3,823,348801,957

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0198613
B0166612
C0133142
D0153722

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63362443.851010%
B63362924.608586%
C6336270.426136%
D6336881.388889%

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 7657 6338 71 71 0.93% 1.12%
B 7657 6338 116 116 1.51% 1.83%
C 7657 6338 0 0 0.00% 0.00%
D 7657 6338 38 38 0.50% 0.60%

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 15 1621681 10098.41 808 794 160.5
A 1 162 154428 957.17 808 794 160.5
A 1 178 92108 568.9 808 794 160.5
B 4 239 523579 3525.78 813 796 148.3
B 3 64 323186 2174.28 813 796 148.3
B 15 204 139435 935.02 813 796 148.3
C 12 4 13936 71.83 808 813 182.7
C 13 61 6022 28.51 808 813 182.7
C 3 202 1971 6.34 808 813 182.7
D 8 195 220985 1180.01 794 773 186.6
D 4 95 192703 1028.46 794 773 186.6
D 1 52 139238 741.97 794 773 186.6

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