ASTROSAT CZTI

Data Quality Report

Orbit 14560

Creation date: 2024-06-27T16:56:51.842673
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_089T01_9000002146_14560cztM0_level2.evt modeM0/AS1A04_089T01_9000002146_14560cztM0_level2_quad_clean.evt
Size (bytes)548,654,400100,802,880
Size523.2 MB 96.1 MB
Events in quadrant A4,789,451650,701
Events in quadrant B3,732,373668,143
Events in quadrant C3,872,063645,011
Events in quadrant D3,774,143627,969

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0189093
B0153332
C0155912
D0154662

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66141532.313275%
B66141342.026005%
C6614640.967644%
D66141241.874811%

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 9160 6617 2 2 0.02% 0.03%
B 9160 6617 10 10 0.11% 0.15%
C 9160 6617 0 0 0.00% 0.00%
D 9160 6617 54 54 0.59% 0.82%

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 0 23 1085170 5942.52 895 876 182.5
A 12 189 103096 560.22 895 876 182.5
A 0 226 74007 400.8 895 876 182.5
B 0 189 45515 263.2 901 880 169.6
B 0 219 43208 249.6 901 880 169.6
B 10 247 38375 221.1 901 880 169.6
C 3 233 439641 2165.62 880 888 202.6
C 13 61 6301 26.72 880 888 202.6
C 3 202 2118 6.07 880 888 202.6
D 10 199 213772 1001.62 877 853 212.6
D 12 110 113241 528.7 877 853 212.6
D 2 152 42282 194.89 877 853 212.6

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