ASTROSAT CZTI

Data Quality Report

Orbit 08106

Creation date: 2024-06-27T15:28:06.740839
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/AS1G06_033T01_9000001116_08106cztM0_level2.evt modeM0/AS1G06_033T01_9000001116_08106cztM0_level2_quad_clean.evt
Size (bytes)279,812,16051,163,200
Size266.8 MB 48.8 MB
Events in quadrant A2,278,856317,673
Events in quadrant B1,947,851323,283
Events in quadrant C1,924,943327,262
Events in quadrant D2,064,344313,687

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0760
B0760
C0760
D0760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A093192
B081661
C080821
D085991

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3783872.299762%
B3783842.220460%
C3783481.268834%
D37831463.859371%

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 5083 3784 0 0 0.00% 0.00%
B 5083 3784 1 1 0.02% 0.03%
C 5083 3784 0 0 0.00% 0.00%
D 5083 3784 89 89 1.75% 2.35%

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 8 15 382997 3762.5 491 481 101.7
A 0 226 4522 39.75 491 481 101.7
A 12 194 4288 37.45 491 481 101.7
B 11 51 23233 238.53 495 484 95.4
B 12 111 9821 97.9 495 484 95.4
B 11 111 8149 80.37 495 484 95.4
C 1 16 15815 133.96 489 493 114.4
C 13 61 3646 27.57 489 493 114.4
C 14 67 2804 20.2 489 493 114.4
D 1 52 262524 2142.33 472 460 122.3
D 2 234 11605 91.11 472 460 122.3
D 5 233 5548 41.59 472 460 122.3

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