ASTROSAT CZTI

Data Quality Report

Orbit 11636

Creation date: 2024-06-27T16:16:12.507568
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/AS1A04_049T01_9000001710_11636cztM0_level2.evt modeM0/AS1A04_049T01_9000001710_11636cztM0_level2_quad_clean.evt
Size (bytes)284,595,84014,883,840
Size271.4 MB 14.2 MB
Events in quadrant A1,574,70372,785
Events in quadrant B1,258,37979,635
Events in quadrant C1,055,78178,922
Events in quadrant D4,576,85557,229

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0460
B0460
C0460
D0460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A061841
B051191
C045611
D0150861

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2227863.861697%
B2227160.718455%
C222700.000000%
D2227152868.612483%

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 2228 2228 58 58 2.60% 2.60%
B 2228 2228 8 8 0.36% 0.36%
C 2228 2228 0 0 0.00% 0.00%
D 2228 2228 1415 1415 63.51% 63.51%

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 8 5 380118 6529.29 279 273 58.2
A 1 162 42937 733.37 279 273 58.2
A 1 178 23565 400.37 279 273 58.2
B 4 239 135190 2467.47 285 279 54.7
B 0 219 6436 112.61 285 279 54.7
B 12 111 5832 101.56 285 279 54.7
C 13 61 2085 28.17 270 272 64.4
C 3 202 672 6.22 270 272 64.4
C -1 -1 -1 -1.0 270 272 64.4
D 1 52 3843709 104971.18 149 145 36.6
D 13 152 84663 2308.26 149 145 36.6
D 13 122 41027 1116.52 149 145 36.6

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