ASTROSAT CZTI

Data Quality Report

Orbit 29162

Creation date: 2024-06-27T20:00:58.227424
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/AS1A10_099T01_9000004184_29162cztM0_level2.evt modeM0/AS1A10_099T01_9000004184_29162cztM0_level2_quad_clean.evt
Size (bytes)518,218,56076,210,560
Size494.2 MB 72.7 MB
Events in quadrant A3,182,651473,646
Events in quadrant B3,270,010482,796
Events in quadrant C3,243,000462,084
Events in quadrant D5,557,015434,816

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134521
B0135841
C0135091
D0209321

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6518510.782449%
B6519610.935726%
C6519801.227182%
D65194647.117656%

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 7479 6519 0 0 0.00% 0.00%
B 7480 6520 0 0 0.00% 0.00%
C 7480 6520 0 0 0.00% 0.00%
D 7480 6520 407 407 5.44% 6.24%

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 13 254 12015 67.41 823 806 166.3
A 3 137 8109 43.92 823 806 166.3
A 0 226 7020 37.37 823 806 166.3
B 0 183 57697 364.85 811 790 156.0
B 12 111 19325 118.83 811 790 156.0
B 11 111 17807 109.1 811 790 156.0
C 14 238 127122 679.94 792 797 185.8
C 3 233 18192 93.63 792 797 185.8
C 2 114 14953 76.19 792 797 185.8
D 1 52 1879510 10174.74 781 761 184.6
D 13 104 352391 1904.32 781 761 184.6
D 8 195 344486 1861.51 781 761 184.6

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