ASTROSAT CZTI

Data Quality Report

Orbit 10842

Creation date: 2024-06-27T16:04:25.684737
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/AS1A03_086T01_9000001568_10842cztM0_level2.evt modeM0/AS1A03_086T01_9000001568_10842cztM0_level2_quad_clean.evt
Size (bytes)522,578,88071,576,640
Size498.4 MB 68.3 MB
Events in quadrant A4,271,040430,173
Events in quadrant B4,324,893431,136
Events in quadrant C3,275,132436,243
Events in quadrant D3,513,243414,806

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169823
B0169722
C0136542
D0146414

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65221942.974548%
B65222924.477154%
C6522650.996627%
D6521881.349486%

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 7737 6524 65 65 0.84% 1.00%
B 7737 6524 126 126 1.63% 1.93%
C 7737 6524 1 1 0.01% 0.02%
D 7737 6524 16 16 0.21% 0.25%

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 696573 4074.9 849 834 170.7
A 13 251 209642 1222.97 849 834 170.7
A 15 174 44740 257.15 849 834 170.7
B 4 239 953051 5935.86 846 830 160.4
B 12 111 16718 99.04 846 830 160.4
B 3 189 15196 89.55 846 830 160.4
C 14 234 11448 55.07 835 844 192.5
C 3 254 7292 33.49 835 844 192.5
C 13 61 6328 28.48 835 844 192.5
D 12 227 80790 398.27 832 810 200.8
D 1 52 46554 227.79 832 810 200.8
D 14 34 45559 222.83 832 810 200.8

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