ASTROSAT CZTI

Data Quality Report

Orbit 30895

Creation date: 2024-06-27T20:20:54.261048
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/AS1A10_071T28_9000004464_30895cztM0_level2.evt modeM0/AS1A10_071T28_9000004464_30895cztM0_level2_quad_clean.evt
Size (bytes)344,047,68062,904,960
Size328.1 MB 60.0 MB
Events in quadrant A1,905,810416,625
Events in quadrant B3,184,641413,878
Events in quadrant C2,007,423395,217
Events in quadrant D3,040,264387,496

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0834010
B01260021
C0847910
D0117917

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A413730.072516%
B4136200.483559%
C4138150.362494%
D414090.217391%

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 4142 4142 0 0 0.00% 0.00%
B 4143 4143 4 4 0.10% 0.10%
C 4143 4142 6 6 0.14% 0.14%
D 4143 4143 19 19 0.46% 0.46%

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 11 47 13646 131.4 487 477 100.2
A 0 13 10013 95.15 487 477 100.2
A 13 254 7090 65.98 487 477 100.2
B 6 159 1155724 12473.2 479 468 92.6
B 6 36 48597 519.64 479 468 92.6
B 0 190 21249 224.37 479 468 92.6
C 14 238 73946 664.72 463 465 110.5
C 3 233 55348 496.48 463 465 110.5
C 0 10 53372 478.6 463 465 110.5
D 1 52 746313 6656.48 468 458 112.0
D 8 195 426149 3799.13 468 458 112.0
D 2 250 46700 412.69 468 458 112.0

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