ASTROSAT CZTI

Data Quality Report

Orbit 32323

Creation date: 2024-06-27T20:38:52.072260
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_005T01_9000004700_32323cztM0_level2.evt modeM0/AS1A10_005T01_9000004700_32323cztM0_level2_quad_clean.evt
Size (bytes)761,938,56093,925,440
Size726.6 MB 89.6 MB
Events in quadrant A3,179,529652,680
Events in quadrant B5,966,351628,901
Events in quadrant C5,590,586585,928
Events in quadrant D7,923,587545,285

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132373
B0221842
C0208762
D0279862

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6172240.388853%
B61724657.534025%
C617264910.515230%
D617286914.079715%

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 7492 6173 0 0 0.00% 0.00%
B 7492 6173 248 248 3.31% 4.02%
C 7492 6173 355 355 4.74% 5.75%
D 7492 6173 702 702 9.37% 11.37%

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 0 6 33509 203.73 808 794 160.6
A 13 6 15497 91.56 808 794 160.6
A 13 254 11955 69.5 808 794 160.6
B 6 159 1889053 12760.18 792 772 148.0
B 5 172 731518 4938.06 792 772 148.0
B 4 80 145903 980.73 792 772 148.0
C 0 10 2212688 12678.31 754 761 174.5
C 3 233 167530 955.88 754 761 174.5
C 14 238 121615 692.71 754 761 174.5
D 8 195 2678244 15347.84 734 716 174.5
D 13 249 1420346 8137.45 734 716 174.5
D 13 174 520055 2976.9 734 716 174.5

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