ASTROSAT CZTI

Data Quality Report

Orbit 30583

Creation date: 2024-06-27T20:17:17.056413
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/AS1A10_103T02_9000004406_30583cztM0_level2.evt modeM0/AS1A10_103T02_9000004406_30583cztM0_level2_quad_clean.evt
Size (bytes)558,967,68095,135,040
Size533.1 MB 90.7 MB
Events in quadrant A3,433,590632,229
Events in quadrant B5,131,295632,495
Events in quadrant C3,723,155583,967
Events in quadrant D4,208,895587,625

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142291
B0197691
C0151072
D0166171

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6369921.444497%
B63701171.836735%
C63692984.678913%
D63691852.904695%

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 7514 6370 23 23 0.31% 0.36%
B 7515 6371 4 4 0.05% 0.06%
C 7514 6370 89 89 1.18% 1.40%
D 7514 6370 163 163 2.17% 2.56%

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 0 13 155956 922.59 847 832 168.1
A 13 254 11245 61.93 847 832 168.1
A 8 192 8089 43.16 847 832 168.1
B 6 159 1741076 11255.27 833 813 154.6
B 0 229 57528 366.81 833 813 154.6
B 5 255 29757 187.2 833 813 154.6
C 0 10 266622 1453.64 796 803 182.9
C 14 238 166693 907.17 796 803 182.9
C 3 233 97357 528.01 796 803 182.9
D 1 52 749105 3891.61 820 800 192.3
D 8 195 107933 557.15 820 800 192.3
D 12 227 100370 517.82 820 800 192.3

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