ASTROSAT CZTI

Data Quality Report

Orbit 18063

Creation date: 2024-06-27T17:44:33.243084
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/AS1A06_003T04_9000002682_18063cztM0_level2.evt modeM0/AS1A06_003T04_9000002682_18063cztM0_level2_quad_clean.evt
Size (bytes)494,625,600111,885,120
Size471.7 MB 106.7 MB
Events in quadrant A4,025,254735,904
Events in quadrant B3,347,481780,194
Events in quadrant C3,306,471715,824
Events in quadrant D3,877,015721,146

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159862
B0138162
C0136582
D0154992

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A623893715.020840%
B6238871.394678%
C62381151.843540%
D6238971.554986%

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 7543 6239 41 41 0.54% 0.66%
B 7543 6239 5 5 0.07% 0.08%
C 7543 6239 1 1 0.01% 0.02%
D 7543 6239 40 40 0.53% 0.64%

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 14 111 662325 4091.43 819 806 161.7
A 15 174 192542 1185.87 819 806 161.7
A 4 2 22717 135.52 819 806 161.7
B 3 64 18482 111.45 840 821 158.5
B 12 111 17578 105.75 840 821 158.5
B 11 111 15714 93.98 840 821 158.5
C 14 238 126443 693.98 788 794 181.1
C 3 233 63602 346.9 788 794 181.1
C 9 54 24453 130.67 788 794 181.1
D 11 176 561824 2820.57 819 795 198.9
D 7 238 126609 632.53 819 795 198.9
D 9 64 24683 120.09 819 795 198.9

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