ASTROSAT CZTI

Data Quality Report

Orbit 43283

Creation date: 2024-06-27T22:50:07.673439
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/AS1C07_001T10_9000005862_43283cztM0_level2.fits modeM0/AS1C07_001T10_9000005862_43283cztM0_level2_quad_clean.evt
Size (bytes)218,427,84066,744,000
Size208.3 MB 63.7 MB
Events in quadrant A2,168,178441,618
Events in quadrant B1,751,822456,833
Events in quadrant C1,853,374435,867
Events in quadrant D1,997,267402,665

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090181
B081931
C081621
D090371

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4023320.795426%
B4023100.248571%
C402360.149142%
D4023260.646284%

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 5816 4024 22 22 0.38% 0.55%
B 5816 4024 8 8 0.14% 0.20%
C 5816 4024 7 7 0.12% 0.17%
D 5816 4024 36 36 0.62% 0.89%

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 10 83 373328 4178.69 429 419 89.2
A 15 237 111738 1247.4 429 419 89.2
A 13 248 23462 258.21 429 419 89.2
B 5 172 46045 542.37 428 416 84.1
B 0 189 16374 189.68 428 416 84.1
B 12 111 10613 121.21 428 416 84.1
C 15 214 176605 1796.28 417 419 98.1
C 14 254 42395 427.96 417 419 98.1
C 3 233 4440 41.0 417 419 98.1
D 2 249 255255 2490.73 416 404 102.3
D 12 16 67170 652.52 416 404 102.3
D 12 6 51603 500.38 416 404 102.3

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