ASTROSAT CZTI

Data Quality Report

Orbit 07849

Creation date: 2024-06-27T15:24:46.930970
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/AS1G06_077T02_9000001076_07849cztM0_level2.evt modeM0/AS1G06_077T02_9000001076_07849cztM0_level2_quad_clean.evt
Size (bytes)418,838,40076,798,080
Size399.4 MB 73.2 MB
Events in quadrant A2,743,431473,809
Events in quadrant B3,160,753481,828
Events in quadrant C2,949,983486,919
Events in quadrant D3,422,199463,925

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0122651
B0132984
C0128197
D0143480

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59991141.900317%
B59972203.668501%
C5996741.234156%
D59993255.417570%

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 5999 5999 0 0 0.00% 0.00%
B 5999 5999 97 97 1.62% 1.62%
C 5999 5999 0 0 0.00% 0.00%
D 5999 5999 175 175 2.92% 2.92%

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 15 14773 97.92 703 687 143.8
A 3 1 10749 69.95 703 687 143.8
A 15 239 6714 41.9 703 687 143.8
B 4 239 274392 2024.17 705 687 135.2
B 4 173 79970 586.33 705 687 135.2
B 0 214 20133 143.81 705 687 135.2
C 1 16 198058 1227.75 696 700 160.7
C 7 237 19777 118.68 696 700 160.7
C 8 229 16738 99.77 696 700 160.7
D 13 137 581404 3448.34 679 658 168.4
D 2 152 91346 538.48 679 658 168.4
D 12 233 66863 393.11 679 658 168.4

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