ASTROSAT CZTI

Data Quality Report

Orbit 23983

Creation date: 2024-06-27T19:01:53.644195
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/AS1C05_002T08_9000003556_23983cztM0_level2.evt modeM0/AS1C05_002T08_9000003556_23983cztM0_level2_quad_clean.evt
Size (bytes)224,340,48016,865,280
Size213.9 MB 16.1 MB
Events in quadrant A1,266,82191,055
Events in quadrant B1,418,96393,355
Events in quadrant C1,317,61487,868
Events in quadrant D2,644,46983,597

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A052741
B056841
C053581
D093191

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0440
B0440
C0440
D0440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A2130512.394366%
B2130964.507042%
C2130743.474178%
D213058427.417840%

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 3395 2131 0 0 0.00% 0.00%
B 3395 2131 14 14 0.41% 0.66%
C 3395 2131 11 11 0.32% 0.52%
D 3395 2131 359 359 10.57% 16.85%

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 13 254 3036 40.61 329 323 66.8
A 0 226 2779 36.76 329 323 66.8
A 3 137 2675 35.2 329 323 66.8
B 0 197 127840 2063.88 321 313 61.8
B 0 230 21700 346.12 321 313 61.8
B 0 190 9242 144.51 321 313 61.8
C 0 10 76169 1070.0 305 307 70.9
C 14 238 50124 702.64 305 307 70.9
C 13 61 2153 26.04 305 307 70.9
D 12 218 1174787 16758.93 283 274 70.1
D 1 52 140941 2007.15 283 274 70.1
D 12 233 94841 1349.36 283 274 70.1

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