ASTROSAT CZTI

Data Quality Report

Orbit 27110

Creation date: 2024-06-27T19:36:36.816913
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/AS1T03_244T01_9000003912_27110cztM0_level2.evt modeM0/AS1T03_244T01_9000003912_27110cztM0_level2_quad_clean.evt
Size (bytes)624,294,72096,958,080
Size595.4 MB 92.5 MB
Events in quadrant A3,952,725670,602
Events in quadrant B3,185,246687,590
Events in quadrant C3,119,577649,022
Events in quadrant D8,247,258513,415

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157580
B0131390
C0129200
D0286270

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59451171.968040%
B5946811.362260%
C59461071.799529%
D5945178530.025231%

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 7205 5946 27 27 0.37% 0.45%
B 7206 5947 6 6 0.08% 0.10%
C 7206 5947 0 0 0.00% 0.00%
D 7205 5946 1771 1771 24.58% 29.78%

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 6 16 504940 3213.9 792 777 156.9
A 14 235 353722 2249.93 792 777 156.9
A 12 189 23670 145.94 792 777 156.9
B 3 112 47442 318.77 787 770 146.4
B 5 172 25362 167.96 787 770 146.4
B 0 219 18210 119.12 787 770 146.4
C 14 238 124114 695.91 763 768 177.2
C 15 208 18096 97.76 763 768 177.2
C 13 61 5257 25.32 763 768 177.2
D 1 52 4750649 29909.29 681 665 158.8
D 7 38 564475 3550.15 681 665 158.8
D 12 233 192582 1208.45 681 665 158.8

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