ASTROSAT CZTI

Data Quality Report

Orbit 07440

Creation date: 2024-06-27T15:19:47.474630
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/AS1A02_108T01_9000001024_07440cztM0_level2.evt modeM0/AS1A02_108T01_9000001024_07440cztM0_level2_quad_clean.evt
Size (bytes)430,280,64088,767,360
Size410.3 MB 84.7 MB
Events in quadrant A3,071,040573,186
Events in quadrant B3,125,672584,253
Events in quadrant C3,210,416563,033
Events in quadrant D3,203,062535,710

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130903
B0132192
C0131402
D0136572

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61881492.407886%
B61881562.521008%
C6188911.470588%
D61881432.310924%

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 8803 6190 0 0 0.00% 0.00%
B 8803 6189 2 2 0.02% 0.03%
C 8803 6190 0 0 0.00% 0.00%
D 8803 6190 30 30 0.34% 0.48%

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 15 239 33295 205.29 785 769 158.4
A 13 14 12409 73.47 785 769 158.4
A 0 226 7596 43.09 785 769 158.4
B 4 81 26364 170.76 792 775 149.9
B 12 111 14713 93.01 792 775 149.9
B 0 214 14374 90.75 792 775 149.9
C 9 68 226387 1281.77 759 763 176.0
C 8 128 8364 43.18 759 763 176.0
C 13 61 5937 29.39 759 763 176.0
D 1 52 86720 466.01 751 729 184.5
D 12 233 69648 373.49 751 729 184.5
D 2 14 65628 351.7 751 729 184.5

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