ASTROSAT CZTI

Data Quality Report

Orbit 29571

Creation date: 2024-06-27T20:05:35.464395
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/AS1C05_019T01_9000004264_29571cztM0_level2.evt modeM0/AS1C05_019T01_9000004264_29571cztM0_level2_quad_clean.evt
Size (bytes)477,034,560123,981,120
Size454.9 MB 118.2 MB
Events in quadrant A3,062,209828,325
Events in quadrant B3,328,204869,276
Events in quadrant C3,266,776835,672
Events in quadrant D4,370,481790,521

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131892
B0140562
C0137912
D0173072

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0250
B0250
C0250
D0250

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6177270.437105%
B6178641.035934%
C61781963.172548%
D61771762.849280%

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 8697 6179 0 0 0.00% 0.00%
B 8698 6179 8 8 0.09% 0.13%
C 8698 6180 0 0 0.00% 0.00%
D 8697 6179 99 99 1.14% 1.60%

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 13 254 11989 71.66 791 777 156.5
A 3 137 7342 41.96 791 777 156.5
A 0 13 7084 40.31 791 777 156.5
B 0 189 108335 731.55 800 780 147.0
B 0 190 39377 262.52 800 780 147.0
B 4 216 25102 165.43 800 780 147.0
C 14 238 160604 893.17 780 786 178.9
C 14 254 46600 256.04 780 786 178.9
C 2 114 14336 75.73 780 786 178.9
D 13 104 495188 2724.22 767 747 181.5
D 8 195 395729 2176.23 767 747 181.5
D 13 153 310168 1704.81 767 747 181.5

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