ASTROSAT CZTI

Data Quality Report

Orbit 15006

Creation date: 2024-06-27T17:02:26.661480
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/AS1T02_056T01_9000002210_15006cztM0_level2.evt modeM0/AS1T02_056T01_9000002210_15006cztM0_level2_quad_clean.evt
Size (bytes)474,390,72077,204,160
Size452.4 MB 73.6 MB
Events in quadrant A3,627,659484,328
Events in quadrant B4,010,014475,244
Events in quadrant C3,232,480475,393
Events in quadrant D3,065,844459,804

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0149683
B0159772
C0136252
D0133712

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6350290.456693%
B63502554.015748%
C6350100.157480%
D6350280.440945%

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 7536 6352 2 2 0.03% 0.03%
B 7536 6352 189 189 2.51% 2.98%
C 7536 6352 2 2 0.03% 0.03%
D 7536 6352 19 19 0.25% 0.30%

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 1 162 204577 1289.19 782 764 158.1
A 12 189 144244 907.56 782 764 158.1
A 1 178 103072 647.14 782 764 158.1
B 10 16 506360 3444.28 775 759 146.8
B 3 64 360098 2447.91 775 759 146.8
B 0 230 26994 178.72 775 759 146.8
C 3 233 261463 1481.1 758 762 176.0
C 12 4 9876 51.78 758 762 176.0
C 13 61 5389 26.29 758 762 176.0
D 2 120 70681 350.74 749 733 199.4
D 12 235 36701 180.35 749 733 199.4
D 13 104 33825 165.93 749 733 199.4

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