ASTROSAT CZTI

Data Quality Report

Orbit 37229

Creation date: 2024-06-27T21:37:10.886980
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/AS1A10_123T11_9000005286_37229cztM0_level2.evt modeM0/AS1A10_123T11_9000005286_37229cztM0_level2_quad_clean.evt
Size (bytes)530,867,52072,665,280
Size506.3 MB 69.3 MB
Events in quadrant A4,266,221441,786
Events in quadrant B3,143,351491,759
Events in quadrant C2,958,178478,317
Events in quadrant D5,348,280414,431

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159433
B0126532
C0118042
D0193432

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0360

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A532859811.223724%
B5328450.844595%
C5328691.295045%
D532879714.958709%

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 8974 5329 499 499 5.56% 9.36%
B 8974 5330 21 21 0.23% 0.39%
C 8974 5330 49 49 0.55% 0.92%
D 8974 5330 760 760 8.47% 14.26%

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 15 237 1466584 11721.52 628 617 125.1
A 10 83 256285 2044.26 628 617 125.1
A 13 248 50514 398.96 628 617 125.1
B 5 172 173964 1391.5 658 644 124.6
B 0 213 123857 989.22 658 644 124.6
B 0 230 121631 971.35 658 644 124.6
C 15 214 226908 1545.35 634 638 146.4
C 0 10 150767 1025.33 634 638 146.4
C 8 79 48388 326.12 634 638 146.4
D 12 248 1389796 9477.57 607 591 146.6
D 10 253 645062 4396.77 607 591 146.6
D 2 249 403881 2751.37 607 591 146.6

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