ASTROSAT CZTI

Data Quality Report

Orbit 03361

Creation date: 2024-06-27T14:28:02.275707
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/AS1G05_112T01_9000000452_03361cztM0_level2.evt modeM0/AS1G05_112T01_9000000452_03361cztM0_level2_quad_clean.evt
Size (bytes)176,725,44042,932,160
Size168.5 MB 40.9 MB
Events in quadrant A1,272,374278,446
Events in quadrant B1,361,067283,230
Events in quadrant C1,308,428283,387
Events in quadrant D1,226,648263,887

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B041
C040
D040

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A08022
B07919
C07719
D07822

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A079332323
B080142272
C078642181
D080852504

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A26311214.599012%
B26631224.581299%
C2673752.805836%
D26011043.998462%

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 3619 2937 0 0 0.00% 0.00%
B 3648 2964 2 2 0.05% 0.07%
C 3655 2959 0 0 0.00% 0.00%
D 3678 2908 2 2 0.05% 0.07%

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 0 50 32104 464.77 321 313 68.4
A 12 194 3390 44.98 321 313 68.4
A 0 226 3188 42.03 321 313 68.4
B 2 249 44878 676.47 327 318 65.9
B 15 204 32173 483.6 327 318 65.9
B 4 81 8468 123.73 327 318 65.9
C 6 80 18148 230.19 322 323 77.4
C 1 16 10765 134.85 322 323 77.4
C 8 128 8715 108.37 322 323 77.4
D 13 223 53946 698.46 309 298 76.8
D 14 226 3448 41.01 309 298 76.8
D 13 239 2825 32.9 309 298 76.8

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