ASTROSAT CZTI

Data Quality Report

Orbit 20136

Creation date: 2024-06-27T18:11:43.005903
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/AS1A05_180T01_9000002992_20136cztM0_level2.evt modeM0/AS1A05_180T01_9000002992_20136cztM0_level2_quad_clean.evt
Size (bytes)524,151,36085,651,200
Size499.9 MB 81.7 MB
Events in quadrant A3,966,775542,762
Events in quadrant B3,651,110550,726
Events in quadrant C3,787,662523,430
Events in quadrant D4,016,530512,257

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156772
B0147392
C0151402
D0159482

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66642924.381753%
B66641592.385954%
C66641962.941176%
D66642593.886555%

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 7719 6665 98 98 1.27% 1.47%
B 7719 6665 0 0 0.00% 0.00%
C 7719 6665 0 0 0.00% 0.00%
D 7719 6664 127 127 1.65% 1.91%

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 14 238 447169 2468.09 907 893 180.8
A 14 237 20964 111.0 907 893 180.8
A 11 29 9865 49.62 907 893 180.8
B 10 245 53408 310.23 901 885 169.3
B 0 183 24493 139.44 901 885 169.3
B 12 111 20265 114.47 901 885 169.3
C 3 233 269936 1341.61 864 873 200.6
C 14 238 136007 673.81 864 873 200.6
C 8 208 11719 54.08 864 873 200.6
D 12 238 305274 1423.2 881 860 213.9
D 1 52 290371 1353.53 881 860 213.9
D 13 249 33067 150.57 881 860 213.9

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