ASTROSAT CZTI

Data Quality Report

Orbit 29886

Creation date: 2024-06-27T20:08:45.145590
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_102T12_9000004284_29886cztM0_level2.evt modeM0/AS1A10_102T12_9000004284_29886cztM0_level2_quad_clean.evt
Size (bytes)525,216,96073,172,160
Size500.9 MB 69.8 MB
Events in quadrant A3,147,297456,072
Events in quadrant B4,824,017456,734
Events in quadrant C3,764,621439,063
Events in quadrant D3,755,541436,023

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130641
B0185891
C0149501
D0149561

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6126621.012080%
B6127941.534193%
C61271983.231598%
D6127510.832381%

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 7116 6127 6 6 0.08% 0.10%
B 7117 6128 7 7 0.10% 0.11%
C 7117 6128 56 56 0.79% 0.91%
D 7117 6128 2 2 0.03% 0.03%

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 1 113 111252 712.49 777 763 155.1
A 0 13 23141 144.3 777 763 155.1
A 8 192 14823 90.66 777 763 155.1
B 6 159 1713118 11537.11 763 743 148.4
B 0 229 76440 510.01 763 743 148.4
B 0 183 25119 164.23 763 743 148.4
C 10 22 396742 2305.17 733 737 171.8
C 3 233 375585 2182.02 733 737 171.8
C 14 238 121101 700.65 733 737 171.8
D 7 238 472052 2655.39 750 731 177.5
D 8 195 396233 2228.23 750 731 177.5
D 2 234 22084 120.3 750 731 177.5

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