ASTROSAT CZTI

Data Quality Report

Orbit 13447

Creation date: 2024-06-27T16:40:55.865148
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/AS1A04_103T01_9000001988_13447cztM0_level2.evt modeM0/AS1A04_103T01_9000001988_13447cztM0_level2_quad_clean.evt
Size (bytes)439,012,80091,471,680
Size418.7 MB 87.2 MB
Events in quadrant A3,208,581590,728
Events in quadrant B3,433,847599,938
Events in quadrant C3,145,857578,563
Events in quadrant D3,073,656555,700

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135673
B0142052
C0133932
D0134742

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6385510.798747%
B6385761.190290%
C6385250.391543%
D6385260.407204%

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 7721 6386 0 0 0.00% 0.00%
B 7721 6386 17 17 0.22% 0.27%
C 7721 6386 0 0 0.00% 0.00%
D 7721 6387 0 0 0.00% 0.00%

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 13 248 10480 58.4 830 816 165.5
A 0 226 7397 39.77 830 816 165.5
A 12 194 6282 33.03 830 816 165.5
B 3 64 144480 929.41 829 811 154.6
B 4 173 33131 209.08 829 811 154.6
B 0 230 17592 108.56 829 811 154.6
C 3 233 36246 194.84 795 801 181.9
C 6 253 6036 28.78 795 801 181.9
C 13 61 5759 27.25 795 801 181.9
D 13 249 42085 223.62 789 769 184.8
D 2 234 23287 121.88 789 769 184.8
D 2 136 17262 89.27 789 769 184.8

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