ASTROSAT CZTI

Data Quality Report

Orbit 18309

Creation date: 2024-06-27T17:48:08.901244
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/AS1A06_006T01_9000002720_18309cztM0_level2.evt modeM0/AS1A06_006T01_9000002720_18309cztM0_level2_quad_clean.evt
Size (bytes)585,682,56057,697,920
Size558.6 MB 55.0 MB
Events in quadrant A3,107,982342,478
Events in quadrant B3,343,247344,964
Events in quadrant C3,222,358337,853
Events in quadrant D7,655,525299,395

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0126701
B0134101
C0129611
D0269983

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6041360.595928%
B6042851.406819%
C6042791.307514%
D604184513.987750%

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 7336 6042 0 0 0.00% 0.00%
B 7337 6043 17 17 0.23% 0.28%
C 7337 6043 0 0 0.00% 0.00%
D 7336 6041 764 764 10.41% 12.65%

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 0 226 7229 39.95 808 791 161.2
A 12 194 5778 30.95 808 791 161.2
A 3 137 5564 29.62 808 791 161.2
B 7 220 141170 931.25 813 797 150.7
B 12 111 16770 105.97 813 797 150.7
B 11 111 14317 89.69 813 797 150.7
C 14 238 123903 685.41 782 789 179.6
C 0 207 21652 116.15 782 789 179.6
C 3 233 15222 80.35 782 789 179.6
D 7 238 3717055 20251.4 760 737 183.5
D 1 52 755250 4111.58 760 737 183.5
D 13 168 261432 1420.61 760 737 183.5

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