ASTROSAT CZTI

Data Quality Report

Orbit 04529

Creation date: 2024-06-27T14:43:21.428917
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_250T01_9000000568_04529cztM0_level2.evt modeM0/AS1G05_250T01_9000000568_04529cztM0_level2_quad_clean.evt
Size (bytes)458,219,52084,464,640
Size437.0 MB 80.6 MB
Events in quadrant A4,375,997520,079
Events in quadrant B3,112,890550,204
Events in quadrant C2,911,333534,956
Events in quadrant D3,051,023514,947

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173093
B0133712
C0130622
D0137132

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62644256.784802%
B6264370.590677%
C6264360.574713%
D6264791.261175%

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 7539 6265 244 244 3.24% 3.89%
B 7539 6265 2 2 0.03% 0.03%
C 7539 6265 13 13 0.17% 0.21%
D 7539 6265 51 51 0.68% 0.81%

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 13 1536351 10741.39 710 697 143.0
A 8 15 91587 635.75 710 697 143.0
A 0 226 7176 45.32 710 697 143.0
B 4 80 160213 1134.98 745 727 140.5
B 4 48 54551 383.04 745 727 140.5
B 12 111 12120 81.08 745 727 140.5
C 1 16 43330 258.97 712 715 164.6
C 14 48 41406 247.28 712 715 164.6
C 9 247 40817 243.7 712 715 164.6
D 13 235 137968 806.44 696 679 170.2
D 2 14 68467 398.19 696 679 170.2
D 12 110 66786 388.32 696 679 170.2

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