ASTROSAT CZTI

Data Quality Report

Orbit 04578

Creation date: 2024-06-27T14:44:01.776541
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_233T10_9000000570_04578cztM0_level2.evt modeM0/AS1G05_233T10_9000000570_04578cztM0_level2_quad_clean.evt
Size (bytes)479,352,96086,022,720
Size457.1 MB 82.0 MB
Events in quadrant A3,491,369540,481
Events in quadrant B3,769,517533,900
Events in quadrant C3,109,259530,873
Events in quadrant D3,672,484513,103

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015683404
B016177524
C014879418
D016297445

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01424
B01426
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A69981992.843670%
B69701582.266858%
C6987610.873050%
D69791482.120648%

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 7160 7093 43 43 0.60% 0.61%
B 7160 7068 24 24 0.34% 0.34%
C 7160 7074 0 0 0.00% 0.00%
D 7160 7068 49 49 0.68% 0.69%

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 352789 2105.14 811 789 167.2
A 0 50 12378 69.31 811 789 167.2
A 12 194 8509 46.17 811 789 167.2
B 14 167 305920 1953.42 810 789 156.2
B 15 204 83157 527.31 810 789 156.2
B 10 16 64256 406.31 810 789 156.2
C 5 250 28151 148.85 784 787 183.8
C 9 54 9212 45.83 784 787 183.8
C 13 61 6488 31.01 784 787 183.8
D 13 239 215449 1118.2 787 761 192.0
D 2 136 192815 1000.31 787 761 192.0
D 13 235 97176 502.17 787 761 192.0

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