ASTROSAT CZTI

Data Quality Report

Orbit 14232

Creation date: 2024-06-27T16:52:16.129457
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_084T01_9000002100_14232cztM0_level2.evt modeM0/AS1G08_084T01_9000002100_14232cztM0_level2_quad_clean.evt
Size (bytes)602,962,560111,337,920
Size575.0 MB 106.2 MB
Events in quadrant A3,272,222742,306
Events in quadrant B4,116,607740,659
Events in quadrant C4,001,139719,811
Events in quadrant D6,395,067679,622

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0144072
B0168311
C0161221
D0238521

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7023390.555318%
B70231882.676919%
C7023470.669230%
D70236208.828136%

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 7414 7025 1 1 0.01% 0.01%
B 7414 7025 69 69 0.93% 0.98%
C 7414 7025 12 12 0.16% 0.17%
D 7414 7025 552 552 7.45% 7.86%

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 12 189 40494 235.9 827 810 168.2
A 8 15 16255 91.81 827 810 168.2
A 15 69 13601 76.03 827 810 168.2
B 10 16 341273 2173.03 821 801 156.7
B 0 229 221495 1408.56 821 801 156.7
B 0 182 75868 479.11 821 801 156.7
C 3 233 885693 4841.83 792 794 182.8
C 0 207 14398 74.44 792 794 182.8
C 13 61 5803 27.41 792 794 182.8
D 1 52 1281829 6958.37 771 750 184.1
D 8 195 830338 4506.03 771 750 184.1
D 12 110 693392 3762.18 771 750 184.1

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