ASTROSAT CZTI

Data Quality Report

Orbit 46822

Creation date: 2024-06-27T23:28:06.259054
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/AS1C07_001T10_9000006272_46822cztM0_level2.fits modeM0/AS1C07_001T10_9000006272_46822cztM0_level2_quad_clean.evt
Size (bytes)499,674,240104,984,640
Size476.5 MB 100.1 MB
Events in quadrant A6,176,888696,950
Events in quadrant B4,728,584702,831
Events in quadrant C2,923,002720,994
Events in quadrant D4,197,301634,189

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0223541
B0182461
C0128601
D0165821

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60682504.119974%
B60684166.855636%
C6068470.774555%
D60693285.404515%

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 7333 6069 67 67 0.91% 1.10%
B 7333 6069 257 257 3.50% 4.23%
C 7333 6069 12 12 0.16% 0.20%
D 7334 6070 258 258 3.52% 4.25%

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 3416275 24170.11 685 671 141.3
A 10 255 36961 256.8 685 671 141.3
A 9 191 18460 125.88 685 671 141.3
B 3 112 1346157 10468.99 677 658 128.5
B 5 32 343157 2664.9 677 658 128.5
B 15 36 132980 1029.56 677 658 128.5
C 14 254 116633 717.17 695 698 161.7
C 3 233 67372 412.44 695 698 161.7
C 12 2 11543 67.09 695 698 161.7
D 13 249 745341 4455.76 677 659 167.1
D 1 52 232686 1388.32 677 659 167.1
D 12 233 215146 1283.37 677 659 167.1

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