ASTROSAT CZTI

Data Quality Report

Orbit 10402

Creation date: 2024-06-27T15:58:55.627779
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/AS1G07_057T02_9000001504_10402cztM0_level2.evt modeM0/AS1G07_057T02_9000001504_10402cztM0_level2_quad_clean.evt
Size (bytes)470,249,28095,880,960
Size448.5 MB 91.4 MB
Events in quadrant A3,029,802617,904
Events in quadrant B3,679,444626,867
Events in quadrant C3,014,637622,957
Events in quadrant D4,073,243579,737

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01349233
B01536935
C01341747
D01644133

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01322

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6546200.305530%
B65501682.564885%
C6541240.366916%
D65471592.428593%

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 7586 6562 2 2 0.03% 0.03%
B 7586 6561 68 68 0.90% 1.04%
C 7586 6562 11 11 0.15% 0.17%
D 7586 6562 146 146 1.92% 2.22%

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 24439 149.91 770 752 158.0
A 13 248 10568 62.12 770 752 158.0
A 15 174 10249 60.1 770 752 158.0
B 4 239 317200 2139.28 776 758 147.9
B 0 219 160690 1081.21 776 758 147.9
B 11 51 85193 570.82 776 758 147.9
C 14 234 52561 293.76 759 765 176.3
C 13 61 5594 27.39 759 765 176.3
C 14 67 2092 7.53 759 765 176.3
D 1 52 439279 2453.94 740 720 178.7
D 12 233 337360 1883.65 740 720 178.7
D 8 195 335167 1871.38 740 720 178.7

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