ASTROSAT CZTI

Data Quality Report

Orbit 22545

Creation date: 2024-06-27T18:42:35.824345
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_9000003344_22545cztM0_level2.evt modeM0/AS1A07_049T01_9000003344_22545cztM0_level2_quad_clean.evt
Size (bytes)504,892,80057,113,280
Size481.5 MB 54.5 MB
Events in quadrant A2,240,662363,963
Events in quadrant B2,354,684368,279
Events in quadrant C2,277,215354,562
Events in quadrant D8,079,020292,414

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100300
B0103000
C0100680
D0272940

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01000
B01000
C01000
D01000

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A498520.040120%
B4985120.240722%
C4985160.320963%
D4985244649.067202%

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 4985 4985 0 0 0.00% 0.00%
B 4985 4985 3 3 0.06% 0.06%
C 4985 4985 0 0 0.00% 0.00%
D 4985 4985 2444 2444 49.03% 49.03%

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 7529 58.65 578 566 118.7
A 11 29 7061 54.71 578 566 118.7
A 3 137 5124 38.39 578 566 118.7
B 15 33 89087 786.38 576 562 112.6
B 12 111 13692 116.64 576 562 112.6
B 11 111 12133 102.79 576 562 112.6
C 14 238 88456 666.7 555 557 131.8
C 0 207 25361 188.14 555 557 131.8
C 13 61 3944 25.69 555 557 131.8
D 7 223 6354164 72513.25 358 347 87.6
D 1 52 339508 3870.69 358 347 87.6
D 13 172 19029 213.21 358 347 87.6

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