ASTROSAT CZTI

Data Quality Report

Orbit 44739

Creation date: 2024-06-27T23:05:56.700864
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_004T11_9000006018_44739cztM0_level2.fits modeM0/AS1A13_004T11_9000006018_44739cztM0_level2_quad_clean.evt
Size (bytes)587,813,760123,655,680
Size560.6 MB 117.9 MB
Events in quadrant A5,666,384826,297
Events in quadrant B4,618,804818,400
Events in quadrant C3,777,358837,195
Events in quadrant D7,080,309709,847

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01600
B01600
C01600
D01600

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0238611
B0193841
C0170331
D0265371

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B020
C020
D020

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79402523.173804%
B79405667.128463%
C7940780.982368%
D794090511.397985%

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 7940 7940 2 2 0.03% 0.03%
B 7940 7940 211 211 2.66% 2.66%
C 7940 7940 9 9 0.11% 0.11%
D 7940 7940 655 655 8.25% 8.25%

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 2130447 11522.29 892 869 184.8
A 13 248 28048 147.05 892 869 184.8
A 15 223 22807 118.7 892 869 184.8
B 0 189 799807 4577.16 881 851 174.6
B 5 255 111932 636.37 881 851 174.6
B 0 190 82652 468.63 881 851 174.6
C 15 208 192971 922.09 887 888 208.3
C 14 254 71715 340.0 887 888 208.3
C 5 128 16214 73.57 887 888 208.3
D 1 52 1800094 8549.16 844 817 210.5
D 8 129 1147107 5446.53 844 817 210.5
D 13 249 442464 2098.46 844 817 210.5

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