ASTROSAT CZTI

Data Quality Report

Orbit 16238

Creation date: 2024-06-27T17:19:46.216416
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/AS1T02_112T01_9000002390_16238cztM0_level2.evt modeM0/AS1T02_112T01_9000002390_16238cztM0_level2_quad_clean.evt
Size (bytes)466,729,92070,663,680
Size445.1 MB 67.4 MB
Events in quadrant A3,382,574432,307
Events in quadrant B3,293,525439,928
Events in quadrant C3,614,109432,987
Events in quadrant D3,446,637424,276

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135922
B0133441
C0146271
D0138661

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5867971.653315%
B5867540.920402%
C5867921.568093%
D5867791.346514%

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 7133 5869 43 43 0.60% 0.73%
B 7133 5869 6 6 0.08% 0.10%
C 7133 5869 0 0 0.00% 0.00%
D 7133 5869 57 57 0.80% 0.97%

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 15 174 390710 2498.42 777 765 156.1
A 0 226 6877 39.16 777 765 156.1
A 12 194 5739 31.87 777 765 156.1
B 4 216 51029 348.36 777 762 144.3
B 0 198 49988 341.14 777 762 144.3
B 0 219 40593 276.04 777 762 144.3
C 3 233 577663 3359.83 747 755 171.7
C 14 238 118446 685.42 747 755 171.7
C 13 61 5380 26.94 747 755 171.7
D 1 52 367387 2006.48 755 735 182.7
D 13 168 182397 994.14 755 735 182.7
D 2 234 21154 111.74 755 735 182.7

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