ASTROSAT CZTI

Data Quality Report

Orbit 09347

Creation date: 2024-06-27T15:44:45.948567
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/AS1G07_022T01_9000001322_09347cztM0_level2.evt modeM0/AS1G07_022T01_9000001322_09347cztM0_level2_quad_clean.evt
Size (bytes)631,031,040106,945,920
Size601.8 MB 102.0 MB
Events in quadrant A6,129,792654,575
Events in quadrant B3,508,169726,999
Events in quadrant C3,950,823698,332
Events in quadrant D5,064,478687,513

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02277610
B0150565
C0164561
D0196555

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6760106815.798817%
B6761871.286792%
C67632894.273252%
D67613294.866144%

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 7838 6764 748 748 9.54% 11.06%
B 7838 6764 12 12 0.15% 0.18%
C 7838 6764 163 163 2.08% 2.41%
D 7838 6764 179 179 2.28% 2.65%

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 5 2878574 18609.9 763 749 154.6
A 1 162 100709 646.41 763 749 154.6
A 15 174 53102 338.55 763 749 154.6
B 0 214 120247 769.92 816 798 155.1
B 4 80 63405 403.54 816 798 155.1
B 0 246 48991 310.63 816 798 155.1
C 4 254 922065 5215.46 768 772 176.6
C 12 16 16606 89.64 768 772 176.6
C 10 22 6302 31.31 768 772 176.6
D 1 52 1569413 7554.14 777 759 207.7
D 13 104 252083 1210.3 777 759 207.7
D 8 195 53654 254.73 777 759 207.7

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