ASTROSAT CZTI

Data Quality Report

Orbit 24199

Creation date: 2024-06-27T19:03:21.678843
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/AS1A07_067T01_9000003578_24199cztM0_level2.evt modeM0/AS1A07_067T01_9000003578_24199cztM0_level2_quad_clean.evt
Size (bytes)38,214,72010,874,880
Size36.4 MB 10.4 MB
Events in quadrant A261,48573,058
Events in quadrant B273,93576,259
Events in quadrant C287,66171,748
Events in quadrant D300,05668,219

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010581
B011421
C012321
D012301

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A44710.223714%
B44740.894855%
C447112.460850%
D44720.447427%

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 447 447 0 0 0.00% 0.00%
B 447 447 0 0 0.00% 0.00%
C 447 447 0 0 0.00% 0.00%
D 447 447 1 1 0.22% 0.22%

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 13 254 772 44.99 67 66 15.7
A 3 137 598 33.9 67 66 15.7
A 0 226 550 30.84 67 66 15.7
B 4 171 1774 112.01 69 67 15.2
B 12 111 1686 106.23 69 67 15.2
B 11 111 1373 85.69 69 67 15.2
C 7 247 14733 826.83 67 67 17.7
C 14 238 10493 587.79 67 67 17.7
C 13 61 416 19.68 67 67 17.7
D 12 218 28211 1554.84 66 64 18.1
D 7 238 12452 684.31 66 64 18.1
D 8 195 6268 342.71 66 64 18.1

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