ASTROSAT CZTI

Data Quality Report

Orbit 29111

Creation date: 2024-06-27T20:00:18.402519
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_063T01_9000004182_29111cztM0_level2.evt modeM0/AS1A10_063T01_9000004182_29111cztM0_level2_quad_clean.evt
Size (bytes)625,561,920101,966,400
Size596.6 MB 97.2 MB
Events in quadrant A3,222,993676,046
Events in quadrant B3,979,609688,605
Events in quadrant C4,255,945668,809
Events in quadrant D7,051,726605,838

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136572
B0159612
C0171372
D0254492

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6425260.404669%
B64241882.926526%
C64241572.443960%
D642491614.259029%

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 7605 6426 0 0 0.00% 0.00%
B 7604 6425 109 109 1.43% 1.70%
C 7604 6425 2 2 0.03% 0.03%
D 7604 6425 798 798 10.49% 12.42%

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 11411 63.84 835 820 165.9
A 3 137 7696 41.45 835 820 165.9
A 0 226 7007 37.29 835 820 165.9
B 10 245 604110 3851.82 833 815 156.6
B 15 222 45453 285.0 833 815 156.6
B 0 190 19691 120.52 833 815 156.6
C 3 233 928571 4907.69 814 821 189.0
C 14 238 131953 693.67 814 821 189.0
C 2 114 15194 76.03 814 821 189.0
D 1 52 3531862 19140.39 773 755 184.5
D 8 195 482458 2611.07 773 755 184.5
D 12 233 68684 368.21 773 755 184.5

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