ASTROSAT CZTI

Data Quality Report

Orbit 29551

Creation date: 2024-06-27T20:05:21.146192
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/AS1A10_094T09_9000004256_29551cztM0_level2.evt modeM0/AS1A10_094T09_9000004256_29551cztM0_level2_quad_clean.evt
Size (bytes)322,752,96055,111,680
Size307.8 MB 52.6 MB
Events in quadrant A1,332,621377,466
Events in quadrant B1,500,654379,890
Events in quadrant C1,465,811360,062
Events in quadrant D5,264,751330,901

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A062120
B066110
C065160
D0177980

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0620
B0620
C0620
D0620

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A309410.032321%
B3094170.549451%
C30941133.652230%
D309541813.505654%

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 3094 3094 0 0 0.00% 0.00%
B 3094 3094 11 11 0.36% 0.36%
C 3094 3094 0 0 0.00% 0.00%
D 3095 3095 761 761 24.59% 24.59%

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 16818 234.14 340 333 70.4
A 13 254 6249 84.03 340 333 70.4
A 3 137 3357 42.95 340 333 70.4
B 5 255 151354 2282.56 335 327 66.2
B 0 156 15085 223.05 335 327 66.2
B 12 111 7826 113.34 335 327 66.2
C 14 238 100794 1332.33 313 315 75.4
C 14 254 69787 921.18 313 315 75.4
C 7 247 50734 668.54 313 315 75.4
D 8 195 3744723 48595.03 313 304 77.1
D 12 33 147625 1911.93 313 304 77.1
D 7 238 43114 555.59 313 304 77.1

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