ASTROSAT CZTI

Data Quality Report

Orbit 21189

Creation date: 2024-06-27T18:24:43.263550
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/AS1A06_002T01_9000003134_21189cztM0_level2.evt modeM0/AS1A06_002T01_9000003134_21189cztM0_level2_quad_clean.evt
Size (bytes)482,993,280102,326,400
Size460.6 MB 97.6 MB
Events in quadrant A3,386,785686,908
Events in quadrant B3,524,906690,991
Events in quadrant C3,350,868650,369
Events in quadrant D3,936,240629,839

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142012
B0145742
C0140652
D0160112

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6320781.234177%
B6320841.329114%
C6320781.234177%
D63201101.740506%

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 7610 6321 2 2 0.03% 0.03%
B 7610 6321 15 15 0.20% 0.24%
C 7610 6321 0 0 0.00% 0.00%
D 7610 6321 40 40 0.53% 0.63%

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 13 252 97082 568.26 847 834 169.4
A 8 6 10060 54.47 847 834 169.4
A 15 236 9740 52.58 847 834 169.4
B 3 64 59596 373.77 835 817 157.3
B 0 189 49650 310.52 835 817 157.3
B 0 182 47281 295.46 835 817 157.3
C 3 233 137845 753.75 789 796 181.8
C 14 238 126658 692.23 789 796 181.8
C 0 10 7994 39.59 789 796 181.8
D 1 52 308835 1605.52 804 781 191.9
D 1 20 188758 979.7 804 781 191.9
D 13 153 137309 711.56 804 781 191.9

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