ASTROSAT CZTI

Data Quality Report

Orbit 45165

Creation date: 2024-06-27T23:10:06.840279
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_049T04_9000006048_45165cztM0_level2.fits modeM0/AS1A13_049T04_9000006048_45165cztM0_level2_quad_clean.evt
Size (bytes)1,301,394,240214,790,400
Size1.2 GB 204.8 MB
Events in quadrant A20,886,8811,205,807
Events in quadrant B7,262,9601,554,082
Events in quadrant C7,178,5781,504,022
Events in quadrant D11,721,3391,234,845

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0721153
B0315536
C0318282
D04509311

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02940
B02940
C02940
D02931

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A14546343423.607865%
B145432421.664031%
C145471751.202997%
D14544154910.650440%

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 15611 14547 2725 2725 17.46% 18.73%
B 15611 14547 99 99 0.63% 0.68%
C 15612 14549 116 116 0.74% 0.80%
D 15612 14547 1326 1326 8.49% 9.12%

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 15 223 10109682 33446.78 1455 1424 302.2
A 10 83 4742007 15685.91 1455 1424 302.2
A 13 248 253261 833.29 1455 1424 302.2
B 5 172 423012 1345.4 1594 1543 313.3
B 0 183 101216 318.17 1594 1543 313.3
B 0 246 98429 309.27 1594 1543 313.3
C 1 3 322248 872.46 1568 1577 367.5
C 14 254 185761 501.11 1568 1577 367.5
C 12 2 166344 448.29 1568 1577 367.5
D 13 249 3713777 9874.95 1484 1438 375.9
D 5 235 1103265 2930.9 1484 1438 375.9
D 11 241 221997 586.69 1484 1438 375.9

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