ASTROSAT CZTI

Data Quality Report

Orbit 08382

Creation date: 2024-06-27T15:32:03.175433
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/AS1C02_037T02_9000001170_08382cztM0_level2.evt modeM0/AS1C02_037T02_9000001170_08382cztM0_level2_quad_clean.evt
Size (bytes)495,927,36091,869,120
Size473.0 MB 87.6 MB
Events in quadrant A3,589,083582,589
Events in quadrant B3,773,311586,173
Events in quadrant C3,460,118570,182
Events in quadrant D3,715,241549,533

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150083
B0154842
C0148562
D0156822

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70941442.029884%
B70941722.424584%
C7094751.057231%
D70941261.776149%

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 9489 7096 0 0 0.00% 0.00%
B 9489 7095 11 11 0.12% 0.16%
C 9489 7096 0 0 0.00% 0.00%
D 9489 7096 32 32 0.34% 0.45%

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 0 226 8821 41.52 925 904 190.7
A 12 194 8108 37.78 925 904 190.7
A 1 162 6925 31.58 925 904 190.7
B 10 16 74296 413.44 924 902 177.5
B 0 214 35205 193.23 924 902 177.5
B 4 81 28556 155.78 924 902 177.5
C 13 61 6840 28.65 887 892 207.6
C 3 202 2241 6.5 887 892 207.6
C 1 16 2125 5.94 887 892 207.6
D 14 34 116938 530.97 888 863 218.6
D 7 71 70530 318.68 888 863 218.6
D 2 14 49177 221.01 888 863 218.6

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