ASTROSAT CZTI

Data Quality Report

Orbit 17413

Creation date: 2024-06-27T17:36:12.952515
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/AS1A05_182T03_9000002576_17413cztM0_level2.evt modeM0/AS1A05_182T03_9000002576_17413cztM0_level2_quad_clean.evt
Size (bytes)551,324,16096,955,200
Size525.8 MB 92.5 MB
Events in quadrant A3,024,242661,444
Events in quadrant B3,212,132661,010
Events in quadrant C3,056,850624,835
Events in quadrant D7,000,934573,319

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126351
B0131491
C0124051
D0248511

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5946861.446350%
B5947981.647890%
C59471021.715150%
D5946108018.163471%

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 7266 5947 2 2 0.03% 0.03%
B 7267 5948 16 16 0.22% 0.27%
C 7267 5948 0 0 0.00% 0.00%
D 7266 5947 1010 1010 13.90% 16.98%

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 67610 438.41 768 752 152.5
A 0 226 6682 38.89 768 752 152.5
A 12 194 5964 34.18 768 752 152.5
B 0 197 147297 1041.64 757 740 140.7
B 4 216 47527 332.53 757 740 140.7
B 5 172 30768 213.42 757 740 140.7
C 14 238 114990 675.42 731 738 169.2
C 5 218 56685 330.74 731 738 169.2
C 5 219 24056 137.85 731 738 169.2
D 11 176 3519001 20657.81 717 698 170.3
D 13 232 479219 2809.65 717 698 170.3
D 13 189 119816 699.4 717 698 170.3

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