ASTROSAT CZTI

Data Quality Report

Orbit 11598

Creation date: 2024-06-27T16:15:43.690454
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/AS1A04_130T04_9000001704_11598cztM0_level2.evt modeM0/AS1A04_130T04_9000001704_11598cztM0_level2_quad_clean.evt
Size (bytes)842,040,00075,067,200
Size803.0 MB 71.6 MB
Events in quadrant A10,891,744381,104
Events in quadrant B5,499,369460,226
Events in quadrant C3,439,937461,890
Events in quadrant D5,157,937441,059

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0376652
B0215261
C0155141
D0206311

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7587257333.913273%
B75875357.051536%
C7587470.619481%
D75872953.888230%

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 7873 7590 1709 1709 21.71% 22.52%
B 7873 7590 236 236 3.00% 3.11%
C 7873 7590 0 0 0.00% 0.00%
D 7873 7590 159 159 2.02% 2.09%

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 7160079 44231.58 791 772 161.9
A 1 162 245366 1511.15 791 772 161.9
A 1 178 145242 892.56 791 772 161.9
B 4 239 1303200 7624.73 886 865 170.8
B 3 64 330428 1929.48 886 865 170.8
B 4 81 169712 988.54 886 865 170.8
C 13 61 6370 26.69 880 883 205.6
C 9 54 5800 23.92 880 883 205.6
C 14 67 2879 9.71 880 883 205.6
D 1 52 977279 4674.87 871 845 208.9
D 5 222 248511 1185.75 871 845 208.9
D 13 104 233542 1114.08 871 845 208.9

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