ASTROSAT CZTI

Data Quality Report

Orbit 33089

Creation date: 2024-06-27T20:45:06.499861
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/AS1A11_030T01_9000004760_33089cztM0_level2.evt modeM0/AS1A11_030T01_9000004760_33089cztM0_level2_quad_clean.evt
Size (bytes)854,058,24069,649,920
Size814.5 MB 66.4 MB
Events in quadrant A2,598,007513,676
Events in quadrant B3,174,524513,404
Events in quadrant C7,060,259442,030
Events in quadrant D12,692,581284,674

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0370

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0108123
B0125772
C0244132
D0411122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01040
B01040
C01040
D01040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5036120.238284%
B50361703.375695%
C5036178535.444797%
D5036489397.160445%

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 7039 5037 3 3 0.04% 0.06%
B 7039 5037 94 94 1.34% 1.87%
C 7039 5037 1403 1403 19.93% 27.85%
D 7039 5036 4767 4767 67.72% 94.66%

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 15 169 21040 155.85 665 657 130.8
A 13 254 8411 59.29 665 657 130.8
A 13 6 7687 53.75 665 657 130.8
B 5 172 476847 3897.15 658 644 122.2
B 5 200 52630 425.44 658 644 122.2
B 0 189 38972 313.67 658 644 122.2
C 8 111 3592138 28994.32 539 546 123.9
C 7 221 659387 5318.71 539 546 123.9
C 1 23 427378 3445.74 539 546 123.9
D 7 223 10006847 94323.55 399 391 106.1
D 8 195 571423 5382.7 399 391 106.1
D 12 6 232657 2189.4 399 391 106.1

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