ASTROSAT CZTI

Data Quality Report

Orbit 10238

Creation date: 2024-06-27T15:56:50.079839
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/AS1A03_095T03_9000001474_10238cztM0_level2.evt modeM0/AS1A03_095T03_9000001474_10238cztM0_level2_quad_clean.evt
Size (bytes)564,935,040115,614,720
Size538.8 MB 110.3 MB
Events in quadrant A3,809,241746,445
Events in quadrant B4,106,874748,121
Events in quadrant C3,507,567747,326
Events in quadrant D5,143,897704,505

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0169853
B0175002
C0163022
D0206522

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7976670.840020%
B7976790.990471%
C7976130.162989%
D79761081.354062%

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 8481 7978 9 9 0.11% 0.11%
B 8481 7978 33 33 0.39% 0.41%
C 8481 7978 0 0 0.00% 0.00%
D 8481 7978 75 75 0.88% 0.94%

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 8 15 159019 827.55 930 909 191.1
A 15 174 59919 308.86 930 909 191.1
A 0 226 8669 40.62 930 909 191.1
B 11 51 118262 659.51 932 910 177.9
B 4 239 102799 572.61 932 910 177.9
B 0 214 78587 436.54 932 910 177.9
C 0 207 8552 36.69 896 901 208.5
C 13 61 6813 28.35 896 901 208.5
C 14 67 4025 14.98 896 901 208.5
D 1 52 1129060 5227.57 890 866 215.8
D 8 195 358627 1657.71 890 866 215.8
D 12 233 73110 334.75 890 866 215.8

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