ASTROSAT CZTI

Data Quality Report

Orbit 33374

Creation date: 2024-06-27T20:48:08.808510
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_064T02_9000004788_33374cztM0_level2.evt modeM0/AS1A10_064T02_9000004788_33374cztM0_level2_quad_clean.evt
Size (bytes)567,950,40091,333,440
Size541.6 MB 87.1 MB
Events in quadrant A2,874,671601,613
Events in quadrant B3,805,803604,276
Events in quadrant C3,329,262595,912
Events in quadrant D6,770,902531,020

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125193
B0154412
C0136362
D0245332

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A620180.129011%
B6201701.128850%
C6201570.919207%
D620174812.062571%

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 9126 6203 0 0 0.00% 0.00%
B 9126 6203 11 11 0.12% 0.18%
C 9126 6203 42 42 0.46% 0.68%
D 9126 6203 622 622 6.82% 10.03%

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 13 6 10904 68.43 740 725 148.7
A 13 254 10003 62.38 740 725 148.7
A 3 137 7469 45.34 740 725 148.7
B 0 219 722652 5088.56 736 718 141.9
B 4 170 49606 344.59 736 718 141.9
B 5 200 27369 187.85 736 718 141.9
C 15 214 268454 1604.85 716 722 166.8
C 0 10 147896 882.19 716 722 166.8
C 14 254 70866 420.46 716 722 166.8
D 8 195 1477437 8610.85 688 668 171.5
D 2 250 1038643 6052.3 688 668 171.5
D 12 6 461012 2684.21 688 668 171.5

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