ASTROSAT CZTI

Data Quality Report

Orbit 42565

Creation date: 2024-06-27T22:41:41.785830
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_9000005814_42565cztM0_level2.fits modeM0/AS1C07_001T10_9000005814_42565cztM0_level2_quad_clean.evt
Size (bytes)338,408,64093,245,760
Size322.7 MB 88.9 MB
Events in quadrant A3,080,114632,630
Events in quadrant B2,572,632631,690
Events in quadrant C2,738,385600,264
Events in quadrant D3,689,560558,087

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125232
B0118512
C0119082
D0149843

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5726140.244499%
B5726180.314356%
C5726130.227035%
D57251993.475983%

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 7279 5727 2 2 0.03% 0.03%
B 7279 5727 6 6 0.08% 0.10%
C 7279 5727 5 5 0.07% 0.09%
D 7278 5726 179 179 2.46% 3.13%

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 647483 5188.02 611 598 124.7
A 2 79 23597 184.45 611 598 124.7
A 13 248 19283 149.85 611 598 124.7
B 0 245 90034 770.54 603 585 116.1
B 5 172 40532 344.11 603 585 116.1
B 5 255 35528 301.01 603 585 116.1
C 15 214 242895 1763.23 590 592 137.4
C 3 233 168183 1219.55 590 592 137.4
C 9 54 9301 63.37 590 592 137.4
D 2 249 828624 5617.08 593 575 147.4
D 1 52 158714 1072.74 593 575 147.4
D 1 47 109096 736.15 593 575 147.4

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