ASTROSAT CZTI

Data Quality Report

Orbit 05558

Creation date: 2024-06-27T14:56:39.187185
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/AS1A02_086T01_9000000714_05558cztM0_level2.evt modeM0/AS1A02_086T01_9000000714_05558cztM0_level2_quad_clean.evt
Size (bytes)440,991,36070,151,040
Size420.6 MB 66.9 MB
Events in quadrant A3,257,913430,142
Events in quadrant B3,569,845436,108
Events in quadrant C2,738,641434,100
Events in quadrant D3,387,115410,401

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136572
B0145751
C0121941
D0138241

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59082123.588355%
B5908851.438727%
C5908280.473934%
D59081272.149628%

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 7163 5909 102 102 1.42% 1.73%
B 7163 5909 7 7 0.10% 0.12%
C 7163 5909 0 0 0.00% 0.00%
D 7163 5909 78 78 1.09% 1.32%

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 15 174 265598 1841.97 707 693 143.8
A 0 50 202081 1400.31 707 693 143.8
A 12 113 20060 134.66 707 693 143.8
B 15 204 519682 3769.13 718 703 137.7
B 0 219 100705 726.27 718 703 137.7
B 10 16 43698 312.26 718 703 137.7
C 1 16 46650 289.54 682 685 158.8
C 9 16 14663 88.05 682 685 158.8
C 7 159 10021 58.81 682 685 158.8
D 2 152 304560 1812.95 681 658 167.6
D 2 63 197451 1173.98 681 658 167.6
D 8 195 91919 544.42 681 658 167.6

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