ASTROSAT CZTI

Data Quality Report

Orbit 08365

Creation date: 2024-06-27T15:31:40.966150
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/AS1A03_036T01_9000001164_08365cztM0_level2.evt modeM0/AS1A03_036T01_9000001164_08365cztM0_level2_quad_clean.evt
Size (bytes)499,584,96070,130,880
Size476.4 MB 66.9 MB
Events in quadrant A3,802,761423,811
Events in quadrant B3,363,486443,157
Events in quadrant C3,020,979422,421
Events in quadrant D4,519,210398,358

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151403
B0137342
C0129232
D0174932

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62343966.352262%
B6234991.588065%
C6234480.769971%
D62343365.389798%

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 7534 6235 183 183 2.43% 2.94%
B 7534 6235 8 8 0.11% 0.13%
C 7534 6235 0 0 0.00% 0.00%
D 7534 6235 274 274 3.64% 4.39%

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 14 111 636081 4044.72 785 767 157.1
A 15 239 127662 807.87 785 767 157.1
A 13 251 9791 57.45 785 767 157.1
B 4 81 52178 338.96 814 796 151.6
B 0 214 45044 291.9 814 796 151.6
B 4 173 32318 207.95 814 796 151.6
C 13 61 6065 29.66 774 778 178.3
C 1 16 2963 12.26 774 778 178.3
C 3 202 1890 6.24 774 778 178.3
D 12 233 1126376 5675.02 757 738 198.3
D 2 152 403960 2032.88 757 738 198.3
D 7 71 65985 328.95 757 738 198.3

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