ASTROSAT CZTI

Data Quality Report

Orbit 17038

Creation date: 2024-06-27T17:31:11.077820
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_038T01_9000002530_17038cztM0_level2.evt modeM0/AS1T03_038T01_9000002530_17038cztM0_level2_quad_clean.evt
Size (bytes)434,574,720101,782,080
Size414.4 MB 97.1 MB
Events in quadrant A2,975,126677,937
Events in quadrant B3,254,384687,760
Events in quadrant C2,906,349652,139
Events in quadrant D3,603,882632,082

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130421
B0137101
C0127151
D0151521

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6189871.405720%
B61901522.455574%
C6190631.017771%
D61901181.906300%

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 7255 6191 16 16 0.22% 0.26%
B 7256 6192 42 42 0.58% 0.68%
C 7256 6192 2 2 0.03% 0.03%
D 7256 6192 66 66 0.91% 1.07%

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 15 174 91978 615.97 735 720 148.2
A 4 2 40694 269.81 735 720 148.2
A 0 254 16126 103.99 735 720 148.2
B 0 229 320262 2290.53 732 713 139.5
B 0 189 38473 270.66 732 713 139.5
B 12 111 16314 111.83 732 713 139.5
C 14 238 111435 689.66 695 698 160.6
C 3 233 62508 384.95 695 698 160.6
C 9 160 13253 78.19 695 698 160.6
D 1 52 473898 2784.74 703 682 169.9
D 5 222 309895 1819.63 703 682 169.9
D 10 70 99399 580.92 703 682 169.9

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