ASTROSAT CZTI

Data Quality Report

Orbit 11059

Creation date: 2024-06-27T16:07:40.771872
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_006T01_9000001608_11059cztM0_level2.evt modeM0/AS1C03_006T01_9000001608_11059cztM0_level2_quad_clean.evt
Size (bytes)494,435,52070,254,720
Size471.5 MB 67.0 MB
Events in quadrant A3,325,385425,615
Events in quadrant B4,427,333424,621
Events in quadrant C3,122,674429,509
Events in quadrant D3,670,180406,770

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135862
B0171201
C0131781
D0147731

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6314831.314539%
B63143555.622426%
C6314630.997783%
D63141051.662971%

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 7594 6315 2 2 0.03% 0.03%
B 7594 6315 171 171 2.25% 2.71%
C 7594 6315 0 0 0.00% 0.00%
D 7594 6315 35 35 0.46% 0.55%

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 92456 548.29 823 803 167.2
A 15 174 52483 309.16 823 803 167.2
A 11 29 12089 67.52 823 803 167.2
B 4 239 1166708 7603.96 814 796 153.3
B 15 204 29850 189.49 814 796 153.3
B 0 214 23764 149.8 814 796 153.3
C 13 61 6001 28.18 799 806 184.3
C 14 234 3729 15.86 799 806 184.3
C 14 67 2020 6.59 799 806 184.3
D 11 129 173242 915.59 790 770 188.4
D 1 52 152055 803.12 790 770 188.4
D 10 253 129354 682.61 790 770 188.4

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