ASTROSAT CZTI

Data Quality Report

Orbit 06339

Creation date: 2024-06-27T15:05:51.823141
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_151T01_9000000836_06339cztM0_level2.evt modeM0/AS1G06_151T01_9000000836_06339cztM0_level2_quad_clean.evt
Size (bytes)473,944,32073,192,320
Size452.0 MB 69.8 MB
Events in quadrant A3,378,151450,462
Events in quadrant B3,456,115453,764
Events in quadrant C3,152,924444,737
Events in quadrant D3,938,052427,059

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137133
B0141352
C0133772
D0157002

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6316871.377454%
B63161141.804940%
C6316661.044965%
D63161662.628246%

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 7581 6317 6 6 0.08% 0.09%
B 7581 6317 27 27 0.36% 0.43%
C 7581 6317 7 7 0.09% 0.11%
D 7581 6317 72 72 0.95% 1.14%

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 13 251 99222 594.25 819 806 165.6
A 15 236 95123 569.5 819 806 165.6
A 8 15 13244 75.1 819 806 165.6
B 3 64 174032 1110.36 824 805 156.0
B 4 172 37697 236.47 824 805 156.0
B 15 204 21657 133.66 824 805 156.0
C 4 254 70195 381.42 786 792 182.0
C 14 67 10857 55.31 786 792 182.0
C 13 61 6261 30.06 786 792 182.0
D 12 220 335472 1754.67 782 760 190.8
D 12 221 243031 1270.07 782 760 190.8
D 4 95 146432 763.66 782 760 190.8

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