ASTROSAT CZTI

Data Quality Report

Orbit 13559

Creation date: 2024-06-27T16:42:38.460036
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/AS1A04_180T01_9000002000_13559cztM0_level2.evt modeM0/AS1A04_180T01_9000002000_13559cztM0_level2_quad_clean.evt
Size (bytes)552,522,24098,326,080
Size526.9 MB 93.8 MB
Events in quadrant A3,274,740637,613
Events in quadrant B3,371,520646,728
Events in quadrant C3,424,822634,902
Events in quadrant D6,201,530585,153

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140833
B0144152
C0142562
D0230962

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6793390.574120%
B6793530.780215%
C6793230.338584%
D679368810.128073%

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 7904 6794 1 1 0.01% 0.01%
B 7904 6794 2 2 0.03% 0.03%
C 7904 6794 0 0 0.00% 0.00%
D 7904 6794 611 611 7.73% 8.99%

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 9 143 31009 176.79 835 819 170.8
A 1 162 14446 79.8 835 819 170.8
A 0 226 7566 39.51 835 819 170.8
B 0 189 45213 279.46 834 814 158.9
B 4 142 25439 154.99 834 814 158.9
B 3 209 19765 119.28 834 814 158.9
C 3 233 276564 1475.46 807 813 186.9
C 13 61 5722 26.26 807 813 186.9
C 8 222 3309 13.35 807 813 186.9
D 5 222 2422478 12939.21 773 753 187.2
D 13 122 253318 1349.45 773 753 187.2
D 13 249 189991 1011.09 773 753 187.2

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