ASTROSAT CZTI

Data Quality Report

Orbit 22621

Creation date: 2024-06-27T18:43:39.993969
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/AS1A07_049T01_9000003358_22621cztM0_level2.evt modeM0/AS1A07_049T01_9000003358_22621cztM0_level2_quad_clean.evt
Size (bytes)170,801,28052,971,840
Size162.9 MB 50.5 MB
Events in quadrant A1,246,567362,780
Events in quadrant B1,273,414366,026
Events in quadrant C1,260,548342,430
Events in quadrant D1,208,537341,808

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0540
B0540
C0540
D0540

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A054090
B054920
C054430
D054170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A266230.112697%
B266320.075103%
C266370.262861%
D266310.037552%

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 2662 2662 0 0 0.00% 0.00%
B 2663 2663 0 0 0.00% 0.00%
C 2663 2663 0 0 0.00% 0.00%
D 2663 2663 0 0 0.00% 0.00%

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 13 254 3680 50.85 323 317 66.1
A 0 226 2815 37.77 323 317 66.1
A 3 137 2618 34.79 323 317 66.1
B 0 190 19590 315.22 316 310 61.2
B 0 230 6869 107.24 316 310 61.2
B 12 111 6849 106.91 316 310 61.2
C 14 238 47333 662.96 299 301 70.9
C 10 222 43793 613.06 299 301 70.9
C 3 233 3042 38.64 299 301 70.9
D 13 249 14985 193.56 310 300 75.9
D 12 233 14917 192.67 310 300 75.9
D 2 234 10344 132.39 310 300 75.9

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