ASTROSAT CZTI

Data Quality Report

Orbit 29280

Creation date: 2024-06-27T20:02:10.936278
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/AS1A10_045T08_9000004208_29280cztM0_level2.evt modeM0/AS1A10_045T08_9000004208_29280cztM0_level2_quad_clean.evt
Size (bytes)409,962,24059,417,280
Size391.0 MB 56.7 MB
Events in quadrant A2,367,914368,067
Events in quadrant B2,555,291375,688
Events in quadrant C3,173,109360,465
Events in quadrant D3,987,224351,516

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A099281
B0105031
C0127621
D0152481

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4889110.224995%
B4889270.552260%
C4890571.165644%
D48902625.357873%

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 4889 4889 0 0 0.00% 0.00%
B 4889 4889 7 7 0.14% 0.14%
C 4890 4890 0 0 0.00% 0.00%
D 4890 4890 211 211 4.31% 4.31%

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 8945 68.29 610 599 122.2
A 5 168 6928 51.78 610 599 122.2
A 3 137 5880 43.21 610 599 122.2
B 0 229 81392 695.73 600 586 116.1
B 0 183 78705 672.59 600 586 116.1
B 0 190 15852 131.44 600 586 116.1
C 3 233 749678 5471.45 582 584 136.9
C 14 238 96857 703.19 582 584 136.9
C 7 247 41948 302.13 582 584 136.9
D 1 52 780129 5184.68 581 568 150.4
D 7 80 344692 2288.69 581 568 150.4
D 8 195 317284 2106.41 581 568 150.4

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