ASTROSAT CZTI

Data Quality Report

Orbit 14910

Creation date: 2024-06-27T17:01:13.554792
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/AS1A04_099T01_9000002204_14910cztM0_level2.evt modeM0/AS1A04_099T01_9000002204_14910cztM0_level2_quad_clean.evt
Size (bytes)508,060,80075,888,000
Size484.5 MB 72.4 MB
Events in quadrant A3,498,723470,056
Events in quadrant B4,316,735468,431
Events in quadrant C3,541,474453,409
Events in quadrant D3,581,512445,372

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142873
B0167502
C0142712
D0147892

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66022473.741291%
B66024186.331415%
C66021892.862769%
D66021982.999091%

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 9008 6604 0 0 0.00% 0.00%
B 9008 6604 69 69 0.77% 1.04%
C 9008 6605 0 0 0.00% 0.00%
D 9008 6604 20 20 0.22% 0.30%

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 11 29 14806 76.34 904 887 182.3
A 3 1 9334 46.33 904 887 182.3
A 0 226 7971 38.85 904 887 182.3
B 10 16 803846 4739.51 886 866 169.4
B 0 229 33133 190.45 886 866 169.4
B 12 111 20715 117.16 886 866 169.4
C 3 233 145470 724.42 869 878 199.6
C 13 61 6117 26.25 869 878 199.6
C 0 207 4724 19.27 869 878 199.6
D 7 223 110261 527.86 870 848 207.3
D 7 254 71735 341.99 870 848 207.3
D 13 249 67172 319.98 870 848 207.3

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