ASTROSAT CZTI

Data Quality Report

Orbit 47151

Creation date: 2024-06-27T23:32:17.090100
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/AS1C09_003T01_9000006298_47151cztM0_level2.fits modeM0/AS1C09_003T01_9000006298_47151cztM0_level2_quad_clean.evt
Size (bytes)489,476,160112,803,840
Size466.8 MB 107.6 MB
Events in quadrant A7,103,911739,778
Events in quadrant B3,659,981766,845
Events in quadrant C3,302,767730,797
Events in quadrant D3,501,383683,833

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259002
B0159312
C0151412
D0156582

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70953605.073996%
B7095961.353066%
C7096851.197858%
D7096791.113303%

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 8755 7097 113 113 1.29% 1.59%
B 8755 7097 22 22 0.25% 0.31%
C 8756 7098 42 42 0.48% 0.59%
D 8756 7098 42 42 0.48% 0.59%

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 10 83 4036426 25247.86 774 758 159.8
A 9 191 20215 121.73 774 758 159.8
A 0 243 16910 101.05 774 758 159.8
B 4 21 194744 1252.41 778 752 154.9
B 0 200 100044 641.03 778 752 154.9
B 0 190 88119 564.04 778 752 154.9
C 14 254 260146 1439.29 764 768 180.2
C 12 2 35537 192.93 764 768 180.2
C 3 233 10309 52.94 764 768 180.2
D 12 1 218461 1129.56 768 743 192.7
D 1 47 74057 380.37 768 743 192.7
D 5 171 41058 209.16 768 743 192.7

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