ASTROSAT CZTI

Data Quality Report

Orbit 09059

Creation date: 2024-06-27T15:40:43.203265
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_046T01_9000001260_09059cztM0_level2.evt modeM0/AS1A03_046T01_9000001260_09059cztM0_level2_quad_clean.evt
Size (bytes)473,607,36092,286,720
Size451.7 MB 88.0 MB
Events in quadrant A3,583,619589,802
Events in quadrant B3,226,155605,676
Events in quadrant C2,998,751599,514
Events in quadrant D4,116,421569,607

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145893
B0134122
C0128182
D0163722

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61591021.656113%
B6159751.217730%
C6159340.552038%
D61592413.912973%

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 7429 6160 62 62 0.83% 1.01%
B 7429 6160 20 20 0.27% 0.32%
C 7429 6160 5 5 0.07% 0.08%
D 7429 6160 187 187 2.52% 3.04%

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 8 5 405738 2678.06 758 745 151.2
A 15 239 223316 1471.77 758 745 151.2
A 1 162 25037 160.63 758 745 151.2
B 10 16 154738 1076.12 771 752 143.1
B 6 51 44508 305.78 771 752 143.1
B 12 111 14594 96.73 771 752 143.1
C 14 234 43005 245.14 755 760 172.3
C 3 254 10602 57.11 755 760 172.3
C 13 61 5736 28.87 755 760 172.3
D 1 52 747024 3906.24 735 718 191.1
D 13 104 266393 1390.57 735 718 191.1
D 2 14 192152 1001.98 735 718 191.1

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