ASTROSAT CZTI

Data Quality Report

Orbit 29586

Creation date: 2024-06-27T20:05:45.481795
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/AS1A10_093T01_9000004266_29586cztM0_level2.evt modeM0/AS1A10_093T01_9000004266_29586cztM0_level2_quad_clean.evt
Size (bytes)524,802,24090,884,160
Size500.5 MB 86.7 MB
Events in quadrant A3,150,890599,878
Events in quadrant B4,484,916616,175
Events in quadrant C3,299,357571,684
Events in quadrant D4,546,715540,115

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0170
C0170
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130772
B0174732
C0136192
D0177912

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6085140.230074%
B60851652.711586%
C60841863.057199%
D60841522.498356%

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 7440 6086 1 1 0.01% 0.02%
B 7440 6086 62 62 0.83% 1.02%
C 7439 6085 0 0 0.00% 0.00%
D 7439 6084 122 122 1.64% 2.01%

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 0 13 71276 441.79 795 781 159.6
A 13 254 12634 74.28 795 781 159.6
A 1 113 7424 41.63 795 781 159.6
B 0 189 1177489 7991.02 799 782 147.3
B 15 33 86911 584.9 799 782 147.3
B 0 230 41596 277.17 799 782 147.3
C 14 238 171992 973.22 763 770 175.9
C 14 254 62722 352.13 763 770 175.9
C 3 233 40433 225.44 763 770 175.9
D 7 80 777998 4332.31 757 739 179.4
D 8 195 322226 1791.91 757 739 179.4
D 12 33 261408 1452.92 757 739 179.4

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