ASTROSAT CZTI

Data Quality Report

Orbit 24393

Creation date: 2024-06-27T19:05:31.814371
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/AS1A08_008T01_9000003596_24393cztM0_level2.evt modeM0/AS1A08_008T01_9000003596_24393cztM0_level2_quad_clean.evt
Size (bytes)598,999,68095,613,120
Size571.3 MB 91.2 MB
Events in quadrant A4,194,561605,972
Events in quadrant B3,450,410625,710
Events in quadrant C4,503,507593,549
Events in quadrant D5,502,764566,999

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0172162
B0148562
C0179912
D0212352

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B090
C090
D090

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A72262703.736507%
B72251311.813149%
C72252493.446367%
D72255337.377163%

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 7831 7227 116 116 1.48% 1.61%
B 7830 7226 0 0 0.00% 0.00%
C 7830 7226 5 5 0.06% 0.07%
D 7830 7226 398 398 5.08% 5.51%

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 10 845447 4838.74 868 850 174.5
A 13 254 11070 58.55 868 850 174.5
A 3 137 7626 38.82 868 850 174.5
B 12 111 20355 118.15 875 854 165.1
B 11 111 17719 102.18 875 854 165.1
B 15 33 17529 101.03 875 854 165.1
C 7 247 1079830 5609.84 839 844 192.3
C 14 238 133477 689.58 839 844 192.3
C 3 233 16749 82.69 839 844 192.3
D 1 52 2097011 10541.59 832 806 198.9
D 12 233 210446 1054.26 832 806 198.9
D 2 234 31609 154.9 832 806 198.9

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