ASTROSAT CZTI

Data Quality Report

Orbit 00233

Creation date: 2024-06-27T13:58:13.720095
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/AS1P01_123T01_9000000024_00233cztM0_level2.evt modeM0/AS1P01_123T01_9000000024_00233cztM0_level2_quad_clean.evt
Size (bytes)854,930,88081,682,560
Size815.3 MB 77.9 MB
Events in quadrant A6,148,894520,996
Events in quadrant B6,354,372525,427
Events in quadrant C5,795,782541,518
Events in quadrant D7,234,739508,930

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0221142
B0226831
C0210751
D0253391

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A537940.074363%
B537940.074363%
C537920.037182%
D53791222.268080%

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 7114 5380 108 108 1.52% 2.01%
B 7114 5380 115 115 1.62% 2.14%
C 7114 5380 46 46 0.65% 0.86%
D 7114 5380 526 526 7.39% 9.78%

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 15 250 73292 206.08 1564 1542 348.2
A 15 17 9437 22.68 1564 1542 348.2
A 0 253 7050 15.82 1564 1542 348.2
B 7 220 123120 331.01 1584 1591 367.1
B 5 46 94995 254.41 1584 1591 367.1
B 8 4 15292 37.32 1584 1591 367.1
C 1 1 6816 13.01 1467 1521 407.0
C 9 68 6792 12.95 1467 1521 407.0
C 5 251 6721 12.77 1467 1521 407.0
D 1 4 1422201 3465.47 1393 1431 410.0
D 2 85 117200 282.38 1393 1431 410.0
D 10 154 94744 227.6 1393 1431 410.0

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