ASTROSAT CZTI

Data Quality Report

Orbit 10468

Creation date: 2024-06-27T15:59:36.645316
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/AS1A03_126T01_9000001512_10468cztM0_level2.evt modeM0/AS1A03_126T01_9000001512_10468cztM0_level2_quad_clean.evt
Size (bytes)460,820,16072,316,800
Size439.5 MB 69.0 MB
Events in quadrant A3,163,139435,888
Events in quadrant B3,348,009439,564
Events in quadrant C2,812,612445,751
Events in quadrant D4,207,122432,491

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A023096
B023299
C0232100
D022786

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02362710487
B02669312831
C02351810732
D03036113472

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A073
B084
C084
D074

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62071502.416626%
B60771863.060721%
C62711071.706267%
D63662423.801445%

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 7549 6875 13 13 0.17% 0.19%
B 7550 6757 35 35 0.46% 0.52%
C 7550 6893 0 0 0.00% 0.00%
D 7547 6863 91 91 1.21% 1.33%

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 13 251 135484 912.35 723 706 147.7
A 5 16 101931 685.22 723 706 147.7
A 3 80 86893 583.42 723 706 147.7
B 4 239 448013 3271.61 706 688 136.7
B 0 214 77161 559.3 706 688 136.7
B 11 51 44344 319.29 706 688 136.7
C 14 234 7399 39.92 718 722 167.3
C 13 61 5435 28.18 718 722 167.3
C 11 7 3391 15.96 718 722 167.3
D 1 20 580876 3057.9 722 706 189.7
D 8 195 452263 2380.02 722 706 189.7
D 13 104 298547 1569.83 722 706 189.7

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