ASTROSAT CZTI

Data Quality Report

Orbit 06548

Creation date: 2024-06-27T15:08:40.635451
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_246T04_9000000882_06548cztM0_level2.evt modeM0/AS1G05_246T04_9000000882_06548cztM0_level2_quad_clean.evt
Size (bytes)202,959,36026,288,640
Size193.6 MB 25.1 MB
Events in quadrant A1,373,654148,188
Events in quadrant B1,471,508153,896
Events in quadrant C1,259,313151,217
Events in quadrant D1,850,570142,858

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A058801
B061370
C057940
D074280

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0560
B0560
C0560
D0560

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A27871083.875135%
B27871224.377467%
C2787702.511661%
D27871204.305705%

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 2787 2787 0 0 0.00% 0.00%
B 2787 2787 0 0 0.00% 0.00%
C 2787 2787 0 0 0.00% 0.00%
D 2787 2787 27 27 0.97% 0.97%

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 15 73300 1031.07 335 327 70.8
A 15 236 6950 93.58 335 327 70.8
A 0 226 3307 42.11 335 327 70.8
B 8 3 46358 694.73 333 323 66.3
B 0 214 34588 517.11 333 323 66.3
B 4 81 24653 367.17 333 323 66.3
C 13 61 2562 29.43 322 322 76.1
C 8 222 920 7.86 322 322 76.1
C 1 16 819 6.53 322 322 76.1
D 2 63 306974 3745.38 325 314 81.9
D 1 239 185126 2257.2 325 314 81.9
D 14 34 25856 311.96 325 314 81.9

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