ASTROSAT CZTI

Data Quality Report

Orbit 29818

Creation date: 2024-06-27T20:08:00.750256
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/AS1T03_291T01_9000004278_29818cztM0_level2.evt modeM0/AS1T03_291T01_9000004278_29818cztM0_level2_quad_clean.evt
Size (bytes)571,619,52074,070,720
Size545.1 MB 70.6 MB
Events in quadrant A3,641,638469,292
Events in quadrant B5,641,420464,949
Events in quadrant C3,592,436435,340
Events in quadrant D4,005,121428,871

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149623
B0209162
C0146922
D0162202

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63651191.869599%
B63651993.126473%
C63651802.827965%
D63651041.633936%

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 7675 6366 0 0 0.00% 0.00%
B 7675 6366 0 0 0.00% 0.00%
C 7675 6366 0 0 0.00% 0.00%
D 7675 6366 12 12 0.16% 0.19%

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 13 254 12519 63.21 943 930 183.3
A 3 137 8110 39.16 943 930 183.3
A 0 226 8079 39.0 943 930 183.3
B 6 159 1887377 11134.15 927 909 169.4
B 0 190 50460 292.46 927 909 169.4
B 15 33 37046 213.28 927 909 169.4
C 14 238 154655 772.79 872 881 199.0
C 2 114 15816 75.06 872 881 199.0
C 14 254 13708 64.46 872 881 199.0
D 8 195 516085 2495.82 889 869 206.4
D 2 250 35887 169.63 889 869 206.4
D 12 79 33117 156.22 889 869 206.4

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