ASTROSAT CZTI

Data Quality Report

Orbit 01217

Creation date: 2024-06-27T14:09:16.736748
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/AS1G04_007T02_9000000220_01217cztM0_level2.evt modeM0/AS1G04_007T02_9000000220_01217cztM0_level2_quad_clean.evt
Size (bytes)1,065,669,12098,576,640
Size1016.3 MB 94.0 MB
Events in quadrant A7,677,522652,615
Events in quadrant B7,997,293657,064
Events in quadrant C7,444,182627,971
Events in quadrant D8,734,894605,063

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0272792
B0282711
C0265851
D0304331

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6339250.394384%
B6339600.946522%
C6339190.299732%
D63392313.644108%

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 6339 225 225 3.03% 3.55%
B 7429 6340 295 295 3.97% 4.65%
C 7429 6340 216 216 2.91% 3.41%
D 7429 6340 923 923 12.42% 14.56%

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 15 127 103824 215.06 1969 1981 473.6
A 8 14 10894 18.82 1969 1981 473.6
A 11 79 8623 14.03 1969 1981 473.6
B 6 53 123840 255.26 2028 2035 477.2
B 15 22 54169 109.25 2028 2035 477.2
B 7 221 30115 58.84 2028 2035 477.2
C 15 241 326137 645.82 1805 1862 502.1
C 3 79 24631 45.35 1805 1862 502.1
C 3 111 23723 43.54 1805 1862 502.1
D 1 239 1204639 2216.5 1759 1819 542.7
D 2 16 731261 1344.18 1759 1819 542.7
D 13 70 83727 150.94 1759 1819 542.7

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