ASTROSAT CZTI

Data Quality Report

Orbit 44422

Creation date: 2024-06-27T23:03:26.586257
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_072T03_9000006000_44422cztM0_level2.fits modeM0/AS1A13_072T03_9000006000_44422cztM0_level2_quad_clean.evt
Size (bytes)457,151,04093,130,560
Size436.0 MB 88.8 MB
Events in quadrant A4,096,476631,724
Events in quadrant B3,011,174647,323
Events in quadrant C3,765,452604,098
Events in quadrant D5,574,981510,906

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A013816
B013716
C013611
D013510

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0191352148
B0147481552
C0173531838
D0230702301

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60811983.256043%
B61121943.174084%
C61043836.274574%
D609087514.367816%

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 6428 6176 0 0 0.00% 0.00%
B 6675 6204 18 18 0.27% 0.29%
C 6733 6208 177 177 2.63% 2.85%
D 6487 6194 653 653 10.07% 10.54%

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 1402798 9677.9 690 676 144.9
A 8 4 24106 161.72 690 676 144.9
A 3 137 8073 51.05 690 676 144.9
B 5 172 78398 565.59 688 666 137.4
B 0 229 62859 452.52 688 666 137.4
B 0 190 56772 408.23 688 666 137.4
C 12 16 713888 4534.24 668 673 157.3
C 15 158 185937 1177.81 668 673 157.3
C 3 233 171176 1083.97 668 673 157.3
D 4 221 1477905 8966.93 645 623 164.7
D 2 249 989783 6004.09 645 623 164.7
D 5 235 218127 1320.22 645 623 164.7

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