ASTROSAT CZTI

Data Quality Report

Orbit 08084

Creation date: 2024-06-27T15:27:44.125618
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/AS1A02_055T01_9000001114_08084cztM0_level2.evt modeM0/AS1A02_055T01_9000001114_08084cztM0_level2_quad_clean.evt
Size (bytes)876,000,960177,027,840
Size835.4 MB 168.8 MB
Events in quadrant A6,269,3461,087,531
Events in quadrant B6,689,6471,122,751
Events in quadrant C6,270,8531,132,955
Events in quadrant D6,384,4141,085,009

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0281414
B0288863
C0277873
D0287743

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02760
B02760
C02760
D02760

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A135172171.605386%
B135172902.145446%
C135171250.924761%
D135171681.242879%

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 14837 13521 0 0 0.00% 0.00%
B 14837 13522 45 45 0.30% 0.33%
C 14837 13522 0 0 0.00% 0.00%
D 14837 13522 36 36 0.24% 0.27%

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 79 213401 661.69 1571 1533 320.2
A 0 226 14633 40.91 1571 1533 320.2
A 12 194 14005 38.95 1571 1533 320.2
B 0 231 270620 887.44 1584 1542 303.2
B 10 16 76518 247.28 1584 1542 303.2
B 11 51 62362 200.59 1584 1542 303.2
C 1 16 142581 396.83 1538 1543 355.4
C 9 68 83879 231.66 1538 1543 355.4
C 8 128 17774 45.67 1538 1543 355.4
D 1 52 322291 796.01 1525 1486 403.0
D 2 33 98499 240.72 1525 1486 403.0
D 7 71 91341 222.96 1525 1486 403.0

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