ASTROSAT CZTI

Data Quality Report

Orbit 05214

Creation date: 2024-06-27T14:52:51.077551
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_136T01_9000000662_05214cztM0_level2.evt modeM0/AS1T01_136T01_9000000662_05214cztM0_level2_quad_clean.evt
Size (bytes)486,414,72076,046,400
Size463.9 MB 72.5 MB
Events in quadrant A3,255,881457,123
Events in quadrant B3,369,278463,318
Events in quadrant C3,308,635461,905
Events in quadrant D4,312,201423,621

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148102
B0148551
C0149041
D0180331

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71353044.260687%
B71352934.106517%
C71352353.293623%
D713578611.016118%

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 7345 7135 0 0 0.00% 0.00%
B 7345 7135 0 0 0.00% 0.00%
C 7345 7135 0 0 0.00% 0.00%
D 7345 7135 271 271 3.69% 3.80%

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 12 194 8417 43.07 845 821 176.4
A 0 226 8126 41.42 845 821 176.4
A 0 50 4996 23.67 845 821 176.4
B 15 204 35582 206.35 851 826 168.4
B 12 111 15576 87.57 851 826 168.4
B 0 229 14525 81.33 851 826 168.4
C 1 16 44925 226.46 832 833 194.7
C 8 128 6998 31.66 832 833 194.7
C 13 61 6702 30.14 832 833 194.7
D 2 33 518945 2633.85 798 772 196.7
D 1 239 414453 2102.73 798 772 196.7
D 13 53 263549 1335.69 798 772 196.7

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