ASTROSAT CZTI

Data Quality Report

Orbit 15386

Creation date: 2024-06-27T17:07:49.141178
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/AS1C03_001T01_9000002270_15386cztM0_level2.evt modeM0/AS1C03_001T01_9000002270_15386cztM0_level2_quad_clean.evt
Size (bytes)570,623,040111,850,560
Size544.2 MB 106.7 MB
Events in quadrant A3,736,667724,713
Events in quadrant B4,355,031751,172
Events in quadrant C3,726,154761,416
Events in quadrant D5,044,505717,868

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151872
B0171741
C0151761
D0193441

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61903926.332795%
B61903084.975767%
C6190400.646204%
D61902844.588045%

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 7516 6192 187 187 2.49% 3.02%
B 7516 6192 188 188 2.50% 3.04%
C 7516 6192 0 0 0.00% 0.00%
D 7516 6192 282 282 3.75% 4.55%

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 14 238 722503 4770.54 752 738 151.3
A 14 237 61456 401.32 752 738 151.3
A 3 80 32423 209.42 752 738 151.3
B 10 245 673263 4755.86 773 756 141.4
B 7 220 95413 669.4 773 756 141.4
B 0 219 93200 653.75 773 756 141.4
C 3 233 703506 4008.67 771 777 175.3
C 0 207 11662 62.09 771 777 175.3
C 7 247 6927 35.08 771 777 175.3
D 13 122 1524085 8161.24 770 749 186.7
D 7 38 250009 1335.4 770 749 186.7
D 5 222 61589 325.95 770 749 186.7

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