ASTROSAT CZTI

Data Quality Report

Orbit 29340

Creation date: 2024-06-27T20:02:59.456075
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/AS1T03_279T01_9000004218_29340cztM0_level2.evt modeM0/AS1T03_279T01_9000004218_29340cztM0_level2_quad_clean.evt
Size (bytes)731,545,92087,592,320
Size697.7 MB 83.5 MB
Events in quadrant A3,115,068637,267
Events in quadrant B3,104,299645,030
Events in quadrant C3,300,321615,618
Events in quadrant D12,247,898353,552

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125131
B0125011
C0133881
D0402211

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5713570.997724%
B5714510.892545%
C57141121.960098%
D5714439976.986349%

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 7008 5715 10 10 0.14% 0.17%
B 7009 5716 2 2 0.03% 0.03%
C 7009 5716 0 0 0.00% 0.00%
D 7009 5716 3623 3623 51.69% 63.38%

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 15 174 45337 284.49 789 777 156.6
A 1 113 24334 150.4 789 777 156.6
A 13 254 11372 67.64 789 777 156.6
B 15 33 23897 162.87 774 759 142.1
B 10 245 21589 146.62 774 759 142.1
B 12 111 15831 106.09 774 759 142.1
C 3 233 159019 900.44 761 768 175.7
C 14 238 137762 779.49 761 768 175.7
C 14 254 20981 115.01 761 768 175.7
D 12 33 6758124 60959.12 468 456 110.9
D 13 104 2368187 21358.67 468 456 110.9
D 7 80 635223 5726.06 468 456 110.9

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