ASTROSAT CZTI

Data Quality Report

Orbit 08093

Creation date: 2024-06-27T15:27:51.754629
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/AS1A02_055T01_9000001114_08093cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08093cztM0_level2_quad_clean.evt
Size (bytes)463,731,840101,695,680
Size442.2 MB 97.0 MB
Events in quadrant A3,315,426643,873
Events in quadrant B3,402,157662,450
Events in quadrant C3,410,082670,523
Events in quadrant D3,464,107639,201

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145604
B0146443
C0146473
D0150893

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66491912.872612%
B66491742.616935%
C66491742.616935%
D66492113.173410%

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 7619 6651 29 29 0.38% 0.44%
B 7619 6651 16 16 0.21% 0.24%
C 7619 6650 16 16 0.21% 0.24%
D 7619 6651 85 85 1.12% 1.28%

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 0 226 8104 40.63 862 848 178.6
A 12 194 8071 40.45 862 848 178.6
A 3 137 3140 12.83 862 848 178.6
B 10 16 69606 426.32 841 822 161.3
B 0 231 19129 113.46 841 822 161.3
B 11 51 17965 106.25 841 822 161.3
C 1 16 95100 471.35 848 855 199.9
C 13 61 6099 26.23 848 855 199.9
C 0 224 5548 23.47 848 855 199.9
D 1 52 94383 417.03 855 838 224.3
D 7 71 35017 152.37 855 838 224.3
D 2 234 22447 96.34 855 838 224.3

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