ASTROSAT CZTI

Data Quality Report

Orbit 47492

Creation date: 2024-07-10T04:15:31.184601
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/AS1A13_089T01_9000006330_47492cztM0_level2.fits modeM0/AS1A13_089T01_9000006330_47492cztM0_level2_quad_clean.evt
Size (bytes)497,177,280110,085,120
Size474.1 MB 105.0 MB
Events in quadrant A7,356,266713,685
Events in quadrant B4,038,830746,928
Events in quadrant C3,035,442731,307
Events in quadrant D3,442,687664,928

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0265321
B0168091
C0140691
D0152651

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68403384.941520%
B68402093.055556%
C6840190.277778%
D6840811.184211%

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 7645 6841 95 95 1.24% 1.39%
B 7645 6841 67 67 0.88% 0.98%
C 7645 6841 0 0 0.00% 0.00%
D 7645 6841 45 45 0.59% 0.66%

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 10 83 4117909 26263.83 753 736 156.8
A 15 235 161864 1027.85 753 736 156.8
A 13 248 82762 523.25 753 736 156.8
B 0 200 704653 4704.16 762 739 149.6
B 5 32 168609 1121.85 762 739 149.6
B 0 198 70452 465.88 762 739 149.6
C 3 233 27747 150.44 757 762 179.4
C 12 2 26395 142.9 757 762 179.4
C 12 249 11370 59.14 757 762 179.4
D 2 165 231787 1226.78 746 720 188.4
D 2 249 132879 701.66 746 720 188.4
D 11 192 54163 283.74 746 720 188.4

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