ASTROSAT CZTI

Data Quality Report

Orbit 28078

Creation date: 2024-06-27T19:47:47.650130
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_073T01_9000004056_28078cztM0_level2.evt modeM0/AS1A10_073T01_9000004056_28078cztM0_level2_quad_clean.evt
Size (bytes)753,981,120129,366,720
Size719.1 MB 123.4 MB
Events in quadrant A3,168,127924,056
Events in quadrant B6,059,556875,739
Events in quadrant C7,964,694817,406
Events in quadrant D5,188,028831,078

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138180
B0225820
C0283840
D0200440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6732160.237671%
B673277811.556744%
C6732103215.329768%
D67314466.626059%

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 7817 6733 2 2 0.03% 0.03%
B 7816 6731 475 475 6.08% 7.06%
C 7817 6733 616 616 7.88% 9.15%
D 7816 6731 399 399 5.10% 5.93%

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 13 33280 201.68 809 795 161.1
A 13 254 11660 67.45 809 795 161.1
A 8 192 10447 59.92 809 795 161.1
B 10 245 2955255 20268.69 777 756 145.8
B 0 190 18994 125.12 777 756 145.8
B 12 111 17946 117.93 777 756 145.8
C 3 233 4940410 28281.76 745 748 174.7
C 14 238 119334 678.96 745 748 174.7
C 13 61 5111 24.98 745 748 174.7
D 1 52 923226 5218.9 750 731 176.8
D 8 195 785550 4440.01 750 731 176.8
D 7 80 463942 2620.56 750 731 176.8

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