ASTROSAT CZTI

Data Quality Report

Orbit 04747

Creation date: 2024-06-27T14:46:34.041420
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/AS1G05_207T01_9000000596_04747cztM0_level2.evt modeM0/AS1G05_207T01_9000000596_04747cztM0_level2_quad_clean.evt
Size (bytes)398,551,68083,350,080
Size380.1 MB 79.5 MB
Events in quadrant A2,808,254532,415
Events in quadrant B2,907,174543,252
Events in quadrant C2,892,064533,848
Events in quadrant D3,061,063502,095

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123891
B0126681
C0125561
D0132351

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5895430.729432%
B5895500.848176%
C5895540.916031%
D58951051.781170%

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 7145 5896 0 0 0.00% 0.00%
B 7145 5896 3 3 0.04% 0.05%
C 7145 5896 4 4 0.06% 0.07%
D 7145 5896 58 58 0.81% 0.98%

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 14 15581 101.16 722 707 147.0
A 0 50 15453 100.29 722 707 147.0
A 12 194 7037 43.05 722 707 147.0
B 14 167 66273 475.04 729 712 138.0
B 12 111 13231 90.71 729 712 138.0
B 11 111 10232 68.98 729 712 138.0
C 14 48 99987 598.31 714 718 165.9
C 13 61 5733 30.23 714 718 165.9
C 12 4 3319 15.68 714 718 165.9
D 13 239 124008 736.29 701 681 167.5
D 13 235 72320 427.7 701 681 167.5
D 1 31 44935 264.21 701 681 167.5

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