ASTROSAT CZTI

Data Quality Report

Orbit 10611

Creation date: 2024-06-27T16:01:28.182005
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/AS1T01_191T01_9000001536_10611cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10611cztM0_level2_quad_clean.evt
Size (bytes)496,382,40078,073,920
Size473.4 MB 74.5 MB
Events in quadrant A3,087,642491,271
Events in quadrant B4,508,081478,977
Events in quadrant C2,930,195497,461
Events in quadrant D4,081,251458,385

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132208
B01737915
C01280313
D01628210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6273390.621712%
B62704306.858054%
C6270150.239234%
D6273941.498486%

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 7406 6277 9 9 0.12% 0.14%
B 7406 6277 277 277 3.74% 4.41%
C 7406 6276 2 2 0.03% 0.03%
D 7406 6277 63 63 0.85% 1.00%

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 15 174 87904 557.38 765 752 156.4
A 1 162 22324 137.96 765 752 156.4
A 1 178 8070 46.8 765 752 156.4
B 4 239 1245110 8748.43 753 738 142.2
B 0 219 191365 1340.18 753 738 142.2
B 0 214 67656 470.46 753 738 142.2
C 14 234 17134 95.63 744 750 171.3
C 4 175 6116 31.32 744 750 171.3
C 13 61 5694 28.86 744 750 171.3
D 8 195 484366 2738.97 732 715 176.6
D 2 16 358848 2028.15 732 715 176.6
D 12 233 271539 1533.71 732 715 176.6

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