ASTROSAT CZTI

Data Quality Report

Orbit 05220

Creation date: 2024-06-27T14:52:42.782131
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/AS1G05_141T01_9000000664_05220cztM0_level2.evt modeM0/AS1G05_141T01_9000000664_05220cztM0_level2_quad_clean.evt
Size (bytes)616,515,84073,385,280
Size588.0 MB 70.0 MB
Events in quadrant A3,073,559474,098
Events in quadrant B3,159,169477,936
Events in quadrant C2,864,762478,472
Events in quadrant D9,131,317335,684

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137463
B0137882
C0131802
D0316895

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6524390.597793%
B6524200.306560%
C652470.107296%
D6523244337.452093%

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 7545 6526 30 30 0.40% 0.46%
B 7545 6526 9 9 0.12% 0.14%
C 7545 6526 0 0 0.00% 0.00%
D 7544 6525 2166 2166 28.71% 33.20%

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 0 50 216065 1392.86 743 726 154.6
A 12 194 7504 43.84 743 726 154.6
A 0 226 7375 43.01 743 726 154.6
B 0 219 75112 504.48 755 738 147.4
B 4 80 43701 291.42 755 738 147.4
B 15 204 32616 216.23 755 738 147.4
C 1 16 38063 222.13 721 725 168.1
C 13 61 5918 30.89 721 725 168.1
C 12 4 5370 27.63 721 725 168.1
D 11 145 5902560 42236.5 563 545 139.7
D 2 33 804856 5755.88 563 545 139.7
D 12 233 133082 948.47 563 545 139.7

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