ASTROSAT CZTI

Data Quality Report

Orbit 06081

Creation date: 2024-06-27T15:02:29.852205
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_028T03_9000000788_06081cztM0_level2.evt modeM0/AS1A02_028T03_9000000788_06081cztM0_level2_quad_clean.evt
Size (bytes)459,999,36090,927,360
Size438.7 MB 86.7 MB
Events in quadrant A3,246,523576,364
Events in quadrant B4,149,657569,749
Events in quadrant C3,003,241580,915
Events in quadrant D3,071,437554,667

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143993
B0169872
C0138646
D0142616

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6767510.753657%
B67673735.512044%
C6765250.369549%
D6765370.546933%

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 7707 6768 7 7 0.09% 0.10%
B 7707 6768 225 225 2.92% 3.32%
C 7707 6768 0 0 0.00% 0.00%
D 7707 6768 23 23 0.30% 0.34%

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 8 15 222271 1389.77 774 755 159.4
A 14 111 26948 164.33 774 755 159.4
A 3 1 13505 79.99 774 755 159.4
B 3 64 1049352 7086.51 771 752 148.0
B 0 219 28915 190.33 771 752 148.0
B 4 81 26051 170.97 771 752 148.0
C 9 54 17776 95.43 763 766 178.3
C 13 61 6005 29.39 763 766 178.3
C 1 16 3947 17.85 763 766 178.3
D 13 169 60024 321.85 754 733 184.2
D 2 206 40990 218.53 754 733 184.2
D 2 33 38162 203.17 754 733 184.2

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