ASTROSAT CZTI

Data Quality Report

Orbit 44773

Creation date: 2024-06-27T23:06:21.207492
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_004T12_9000006020_44773cztM0_level2.fits modeM0/AS1A13_004T12_9000006020_44773cztM0_level2_quad_clean.evt
Size (bytes)565,320,960123,966,720
Size539.1 MB 118.2 MB
Events in quadrant A6,123,133817,724
Events in quadrant B4,748,460829,163
Events in quadrant C3,723,787822,331
Events in quadrant D5,722,917740,224

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0248612
B0193622
C0166572
D0221622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78383023.853024%
B78393935.013395%
C78391001.275673%
D78393854.911341%

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 9263 7838 31 31 0.33% 0.40%
B 9264 7839 158 158 1.71% 2.02%
C 9264 7841 20 20 0.22% 0.26%
D 9264 7840 262 262 2.83% 3.34%

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 10 83 2378505 12742.95 889 869 186.6
A 15 223 209301 1117.09 889 869 186.6
A 13 248 83799 444.46 889 869 186.6
B 0 189 760811 4361.61 875 846 174.2
B 5 255 167201 954.75 875 846 174.2
B 5 172 163470 933.34 875 846 174.2
C 14 254 165827 794.64 875 876 207.6
C 2 14 37784 177.8 875 876 207.6
C 12 249 25871 120.41 875 876 207.6
D 5 235 799943 3689.34 869 842 216.6
D 11 241 493439 2274.25 869 842 216.6
D 2 249 453585 2090.25 869 842 216.6

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