ASTROSAT CZTI

Data Quality Report

Orbit 05595

Creation date: 2024-06-27T14:57:01.791901
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_034T01_9000000722_05595cztM0_level2.evt modeM0/AS1G06_034T01_9000000722_05595cztM0_level2_quad_clean.evt
Size (bytes)1,383,140,160203,544,000
Size1.3 GB 194.1 MB
Events in quadrant A8,544,6011,256,410
Events in quadrant B8,957,9421,254,198
Events in quadrant C8,325,6351,236,042
Events in quadrant D14,818,0491,149,329

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0377569
B0386646
C0374208
D0569254

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03780
B03780
C03780
D03780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A183901600.870038%
B183911941.054864%
C18390950.516585%
D183935242.848910%

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 20267 18395 16 16 0.08% 0.09%
B 20267 18395 20 20 0.10% 0.11%
C 20267 18395 0 0 0.00% 0.00%
D 20268 18396 241 241 1.19% 1.31%

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 50 99699 221.31 2172 2129 440.9
A 13 14 49223 106.82 2172 2129 440.9
A 12 194 21237 43.34 2172 2129 440.9
B 0 214 123600 291.2 2196 2151 417.1
B 11 51 79212 184.77 2196 2151 417.1
B 15 204 73508 171.09 2196 2151 417.1
C 13 61 17246 30.7 2123 2140 492.1
C 8 128 16263 28.7 2123 2140 492.1
C 8 112 9243 14.43 2123 2140 492.1
D 2 63 4792150 9351.29 2100 2039 512.2
D 11 241 1042481 2031.16 2100 2039 512.2
D 2 33 350390 680.05 2100 2039 512.2

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