ASTROSAT CZTI

Data Quality Report

Orbit 25644

Creation date: 2024-06-27T19:19:53.215747
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/AS1A09_013T02_9000003734_25644cztM0_level2.evt modeM0/AS1A09_013T02_9000003734_25644cztM0_level2_quad_clean.evt
Size (bytes)504,432,000106,079,040
Size481.1 MB 101.2 MB
Events in quadrant A3,300,961702,492
Events in quadrant B3,180,774711,541
Events in quadrant C3,196,201683,576
Events in quadrant D5,151,258655,002

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140950
B0138420
C0138230
D0199650

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6599320.484922%
B6605370.560182%
C6602851.287489%
D65871131.715500%

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 7623 6619 0 0 0.00% 0.00%
B 7624 6619 0 0 0.00% 0.00%
C 7623 6618 0 0 0.00% 0.00%
D 7623 6618 55 55 0.72% 0.83%

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 8 192 196209 1205.3 803 787 162.1
A 13 254 9643 54.62 803 787 162.1
A 12 96 8404 46.98 803 787 162.1
B 12 111 18532 117.05 801 780 151.7
B 11 111 16465 103.42 801 780 151.7
B 0 190 16334 102.56 801 780 151.7
C 14 238 123818 673.66 779 782 182.6
C 3 233 37285 199.87 779 782 182.6
C 13 61 5414 25.36 779 782 182.6
D 8 195 1274639 6686.91 785 761 190.5
D 1 52 823989 4321.33 785 761 190.5
D 2 244 63581 329.76 785 761 190.5

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