ASTROSAT CZTI

Data Quality Report

Orbit 47982

Creation date: 2024-08-12T05:09:25.094111
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/AS1A13_062T02_9000006384_47982cztM0_level2.fits modeM0/AS1A13_062T02_9000006384_47982cztM0_level2_quad_clean.evt
Size (bytes)596,531,520100,215,360
Size568.9 MB 95.6 MB
Events in quadrant A11,920,634395,069
Events in quadrant B3,383,914775,250
Events in quadrant C3,191,082747,647
Events in quadrant D3,095,655676,879

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0396213
B0143082
C0137582
D0136262

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6309332452.686638%
B63091732.742114%
C6309510.808369%
D6309701.109526%

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 7558 6308 3208 3208 42.45% 50.86%
B 7559 6309 71 71 0.94% 1.13%
C 7559 6309 28 28 0.37% 0.44%
D 7559 6309 23 23 0.30% 0.36%

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 31 6447823 53421.07 582 572 120.7
A 10 83 3206536 26564.19 582 572 120.7
A 10 255 7219 55.08 582 572 120.7
B 5 255 212758 1500.42 736 716 141.3
B 7 221 142724 1004.86 736 716 141.3
B 0 198 62796 439.28 736 716 141.3
C 14 254 218732 1273.14 731 736 171.2
C 15 208 55445 319.51 731 736 171.2
C 12 2 54387 313.33 731 736 171.2
D 2 249 130273 719.36 725 705 180.1
D 2 37 85524 470.92 725 705 180.1
D 2 234 28125 152.24 725 705 180.1

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