ASTROSAT CZTI

Data Quality Report

Orbit 26034

Creation date: 2024-06-27T19:24:04.985629
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/AS1A09_033T02_9000003762_26034cztM0_level2.evt modeM0/AS1A09_033T02_9000003762_26034cztM0_level2_quad_clean.evt
Size (bytes)1,324,344,960245,384,640
Size1.2 GB 234.0 MB
Events in quadrant A9,438,1291,556,887
Events in quadrant B10,053,4661,568,383
Events in quadrant C8,855,9371,511,524
Events in quadrant D10,496,9061,507,517

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0405490
B0421410
C0384960
D0444620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A186842511.343395%
B186844092.189039%
C186853051.632325%
D186853231.728659%

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 21009 18687 85 85 0.40% 0.45%
B 21009 18686 157 157 0.75% 0.84%
C 21010 18687 0 0 0.00% 0.00%
D 21010 18688 127 127 0.60% 0.68%

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 0 13 742842 1640.19 2255 2207 451.6
A 13 254 23493 47.14 2255 2207 451.6
A 3 137 21376 42.45 2255 2207 451.6
B 10 245 1145787 2696.85 2236 2176 424.1
B 0 190 60264 136.98 2236 2176 424.1
B 12 111 53636 121.35 2236 2176 424.1
C 14 238 345606 677.8 2165 2178 506.7
C 3 233 56864 107.93 2165 2178 506.7
C 8 128 16282 27.83 2165 2178 506.7
D 1 52 1395457 2564.49 2182 2130 543.3
D 7 80 381776 698.76 2182 2130 543.3
D 7 223 217559 396.51 2182 2130 543.3

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