ASTROSAT CZTI

Data Quality Report

Orbit 06605

Creation date: 2024-06-27T15:09:20.115036
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_170T02_9000000892_06605cztM0_level2.evt modeM0/AS1A02_170T02_9000000892_06605cztM0_level2_quad_clean.evt
Size (bytes)524,275,200101,940,480
Size500.0 MB 97.2 MB
Events in quadrant A3,164,439661,269
Events in quadrant B3,793,522660,356
Events in quadrant C3,082,916658,339
Events in quadrant D5,356,093614,200

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145123
B0159902
C0144692
D0208762

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70702133.012730%
B70703154.455446%
C7070921.301273%
D70703645.148515%

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 7135 7072 0 0 0.00% 0.00%
B 7135 7072 72 72 1.01% 1.02%
C 7135 7072 0 0 0.00% 0.00%
D 7135 7072 194 194 2.72% 2.74%

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 8 15 29902 174.46 813 793 166.8
A 12 194 8126 43.95 813 793 166.8
A 0 226 7995 43.16 813 793 166.8
B 0 219 306462 1977.08 810 789 154.6
B 3 220 180584 1162.91 810 789 154.6
B 4 81 35418 223.98 810 789 154.6
C 13 61 6338 30.37 788 788 182.7
C 12 4 5069 23.43 788 788 182.7
C 1 16 3359 14.07 788 788 182.7
D 8 195 1317156 6865.76 778 749 191.7
D 2 33 334087 1738.53 778 749 191.7
D 14 34 293269 1525.65 778 749 191.7

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