ASTROSAT CZTI

Data Quality Report

Orbit 45501

Creation date: 2024-06-27T23:12:56.618169
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_054T01_9000006098_45501cztM0_level2.fits modeM0/AS1A13_054T01_9000006098_45501cztM0_level2_quad_clean.evt
Size (bytes)509,584,320110,424,960
Size486.0 MB 105.3 MB
Events in quadrant A5,724,749750,637
Events in quadrant B4,759,679729,737
Events in quadrant C3,254,358738,639
Events in quadrant D4,617,123668,403

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0215303
B0184751
C0140881
D0181241

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65382113.227287%
B653968710.506194%
C65391061.621043%
D65392533.869093%

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 7608 6539 15 15 0.20% 0.23%
B 7609 6540 410 410 5.39% 6.27%
C 7609 6540 21 21 0.28% 0.32%
D 7609 6540 117 117 1.54% 1.79%

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 2658101 16446.41 778 762 161.6
A 2 79 33612 203.31 778 762 161.6
A 13 248 11977 69.41 778 762 161.6
B 12 16 1460165 9845.83 754 731 148.2
B 5 172 161314 1083.35 754 731 148.2
B 0 189 36514 241.4 754 731 148.2
C 14 254 108378 594.72 769 776 180.9
C 1 3 80230 439.14 769 776 180.9
C 2 14 30729 165.55 769 776 180.9
D 1 52 564466 2935.64 762 740 192.0
D 11 241 425967 2214.4 762 740 192.0
D 2 249 224907 1167.37 762 740 192.0

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