ASTROSAT CZTI

Data Quality Report

Orbit 36534

Creation date: 2024-06-27T21:28:02.987958
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_089T02_9000005216_36534cztM0_level2.evt modeM0/AS1A11_089T02_9000005216_36534cztM0_level2_quad_clean.evt
Size (bytes)426,833,28066,110,400
Size407.1 MB 63.0 MB
Events in quadrant A2,876,701418,716
Events in quadrant B2,904,735420,246
Events in quadrant C3,192,798406,928
Events in quadrant D3,593,449385,759

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0350

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0116083
B0117522
C0125352
D0140392

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5283230.435359%
B5283350.662502%
C52831562.952868%
D52831803.407155%

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 7166 5284 13 13 0.18% 0.25%
B 7166 5284 20 20 0.28% 0.38%
C 7166 5284 106 106 1.48% 2.01%
D 7166 5284 152 152 2.12% 2.88%

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 202536 1508.91 671 660 133.8
A 15 223 56492 417.31 671 660 133.8
A 9 143 21756 157.68 671 660 133.8
B 15 85 86626 684.42 663 648 125.6
B 5 172 71020 560.19 663 648 125.6
B 5 255 61407 483.66 663 648 125.6
C 0 10 395956 2696.86 634 638 146.6
C 15 214 225216 1532.07 634 638 146.6
C 14 254 55247 372.54 634 638 146.6
D 12 227 300085 1936.42 642 626 154.6
D 12 16 263322 1698.7 642 626 154.6
D 2 153 124750 802.63 642 626 154.6

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