ASTROSAT CZTI

Data Quality Report

Orbit 09764

Creation date: 2024-06-27T15:50:22.479658
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_080T01_9000001392_09764cztM0_level2.evt modeM0/AS1A03_080T01_9000001392_09764cztM0_level2_quad_clean.evt
Size (bytes)405,380,16084,643,200
Size386.6 MB 80.7 MB
Events in quadrant A2,893,211532,812
Events in quadrant B3,047,430538,490
Events in quadrant C2,782,464532,600
Events in quadrant D3,119,196514,356

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013778791
B014092783
C013596735
D014616777

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122
B0110
C0121
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01368
B01366
C01360
D01364

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6353310.487958%
B6373480.753177%
C6361140.220091%
D6375370.580392%

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 7624 6641 2 2 0.03% 0.03%
B 7624 6654 6 6 0.08% 0.09%
C 7624 6649 0 0 0.00% 0.00%
D 7624 6659 15 15 0.20% 0.23%

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 15 174 40301 260.46 737 722 152.0
A 8 15 11684 72.14 737 722 152.0
A 0 226 7108 42.02 737 722 152.0
B 4 239 56891 390.51 742 725 143.8
B 10 245 46954 321.42 742 725 143.8
B 0 229 17789 118.64 742 725 143.8
C 13 61 5275 27.4 711 715 166.4
C 1 3 3412 16.2 711 715 166.4
C 8 222 2722 12.06 711 715 166.4
D 1 52 177235 985.81 706 688 179.1
D 7 46 109589 608.09 706 688 179.1
D 7 71 56644 312.45 706 688 179.1

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