ASTROSAT CZTI

Data Quality Report

Orbit 06212

Creation date: 2024-06-27T15:04:11.094809
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/AS1G06_103T01_9000000812_06212cztM0_level2.evt modeM0/AS1G06_103T01_9000000812_06212cztM0_level2_quad_clean.evt
Size (bytes)447,569,28093,473,280
Size426.8 MB 89.1 MB
Events in quadrant A3,217,997595,655
Events in quadrant B3,364,446601,609
Events in quadrant C3,037,480590,867
Events in quadrant D3,468,754564,890

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140892
B0146141
C0139011
D0150551

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6852100.145943%
B6852670.977817%
C685290.131349%
D6852200.291886%

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 7647 6853 1 1 0.01% 0.01%
B 7647 6853 22 22 0.29% 0.32%
C 7647 6853 0 0 0.00% 0.00%
D 7647 6853 11 11 0.14% 0.16%

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 178305 1099.14 789 770 161.5
A 12 194 7692 42.85 789 770 161.5
A 0 226 7530 41.85 789 770 161.5
B 0 219 144373 947.34 796 777 151.6
B 0 214 48496 314.81 796 777 151.6
B 15 204 34568 222.93 796 777 151.6
C 1 16 27697 150.3 770 773 179.1
C 13 61 6011 29.24 770 773 179.1
C 9 54 2754 11.06 770 773 179.1
D 2 63 229186 1206.92 770 745 189.3
D 2 136 132568 696.46 770 745 189.3
D 2 14 104407 547.67 770 745 189.3

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