ASTROSAT CZTI

Data Quality Report

Orbit 05965

Creation date: 2024-06-27T15:01:17.459998
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/AS1G06_086T01_9000000774_05965cztM0_level2.evt modeM0/AS1G06_086T01_9000000774_05965cztM0_level2_quad_clean.evt
Size (bytes)395,395,200109,520,640
Size377.1 MB 104.4 MB
Events in quadrant A2,749,177727,936
Events in quadrant B2,796,813748,166
Events in quadrant C3,366,996715,395
Events in quadrant D2,639,160692,426

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126513
B0127162
C0146552
D0128192

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6196380.613299%
B6196500.806972%
C61962093.373144%
D6196300.484183%

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 7216 6198 0 0 0.00% 0.00%
B 7216 6198 1 1 0.01% 0.02%
C 7216 6198 133 133 1.84% 2.15%
D 7216 6198 7 7 0.10% 0.11%

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 13 251 61567 437.43 685 670 139.2
A 8 192 31355 220.41 685 670 139.2
A 4 2 9981 66.88 685 670 139.2
B 4 81 43842 322.72 697 680 133.7
B 15 204 20788 150.35 697 680 133.7
B 12 111 12758 90.31 697 680 133.7
C 9 247 777552 5095.64 657 659 152.5
C 1 16 19081 120.83 657 659 152.5
C 13 61 5310 30.5 657 659 152.5
D 2 63 34248 206.59 660 637 162.7
D 2 206 25500 152.82 660 637 162.7
D 8 195 24891 149.08 660 637 162.7

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