ASTROSAT CZTI

Data Quality Report

Orbit 23705

Creation date: 2024-06-27T18:57:43.380058
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/AS1A07_054T01_9000003504_23705cztM0_level2.evt modeM0/AS1A07_054T01_9000003504_23705cztM0_level2_quad_clean.evt
Size (bytes)464,402,880130,815,360
Size442.9 MB 124.8 MB
Events in quadrant A3,116,775893,891
Events in quadrant B3,365,172895,534
Events in quadrant C3,339,049868,054
Events in quadrant D3,797,110846,569

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137852
B0144722
C0143202
D0160382

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6570250.380518%
B6569640.974273%
C6569971.476633%
D6569891.354849%

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 7665 6570 0 0 0.00% 0.00%
B 7664 6569 29 29 0.38% 0.44%
C 7664 6569 9 9 0.12% 0.14%
D 7664 6569 39 39 0.51% 0.59%

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 10237 59.01 808 789 160.1
A 3 137 6988 38.72 808 789 160.1
A 0 226 6976 38.64 808 789 160.1
B 5 172 96527 638.37 800 781 150.0
B 0 229 47714 312.92 800 781 150.0
B 0 189 35851 233.82 800 781 150.0
C 7 247 143889 784.26 784 789 182.5
C 14 238 126416 688.49 784 789 182.5
C 3 233 5805 27.49 784 789 182.5
D 1 52 480514 2529.88 790 767 189.6
D 9 85 171087 898.16 790 767 189.6
D 12 233 56648 294.68 790 767 189.6

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