ASTROSAT CZTI

Data Quality Report

Orbit 38059

Creation date: 2024-06-27T21:47:55.247715
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/AS1A11_044T01_9000005360_38059cztM0_level2.fits modeM0/AS1A11_044T01_9000005360_38059cztM0_level2_quad_clean.evt
Size (bytes)385,917,12087,655,680
Size368.0 MB 83.6 MB
Events in quadrant A2,950,488595,614
Events in quadrant B3,259,257596,677
Events in quadrant C3,811,541581,432
Events in quadrant D3,869,292524,701

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0230
B0230
C0230
D0240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0118943
B0130382
C0144102
D0148362

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5074130.256208%
B50742444.808829%
C50743276.444620%
D50744098.060702%

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 7047 5075 4 4 0.06% 0.08%
B 7047 5075 189 189 2.68% 3.72%
C 7047 5075 291 291 4.13% 5.73%
D 7047 5075 373 373 5.29% 7.35%

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 10 83 368105 3155.66 576 566 116.5
A 12 16 262003 2244.68 576 566 116.5
A 12 194 42055 356.22 576 566 116.5
B 5 172 673944 6253.13 566 552 107.7
B 4 171 101255 935.13 566 552 107.7
B 5 184 101004 932.8 566 552 107.7
C 1 23 1116839 8640.01 556 560 129.2
C 3 233 297443 2297.88 556 560 129.2
C 15 214 208934 1612.82 556 560 129.2
D 12 227 1374272 10126.27 557 541 135.7
D 13 249 109460 802.88 557 541 135.7
D 2 250 63505 464.13 557 541 135.7

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