ASTROSAT CZTI

Data Quality Report

Orbit 11056

Creation date: 2024-06-27T16:07:38.153106
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/AS1C03_006T01_9000001608_11056cztM0_level2.evt modeM0/AS1C03_006T01_9000001608_11056cztM0_level2_quad_clean.evt
Size (bytes)600,860,16071,795,520
Size573.0 MB 68.5 MB
Events in quadrant A6,306,750424,165
Events in quadrant B4,443,951439,513
Events in quadrant C3,125,554438,797
Events in quadrant D3,878,252415,050

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0232403
B0174302
C0135222
D0157702

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65436309.628611%
B65432854.355800%
C6543300.458505%
D65431301.986856%

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 7763 6544 455 455 5.86% 6.95%
B 7763 6544 165 165 2.13% 2.52%
C 7763 6544 0 0 0.00% 0.00%
D 7763 6544 68 68 0.88% 1.04%

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 14 238 2872055 17755.63 799 785 161.7
A 15 174 340105 2098.32 799 785 161.7
A 11 29 12521 72.57 799 785 161.7
B 4 239 1178001 7634.03 819 801 154.2
B 0 214 37644 238.92 819 801 154.2
B 12 111 17155 106.05 819 801 154.2
C 13 61 6115 28.65 800 806 185.3
C 14 234 3866 16.51 800 806 185.3
C 14 67 3674 15.48 800 806 185.3
D 1 52 264276 1402.18 785 765 187.9
D 8 195 254550 1350.42 785 765 187.9
D 11 129 181784 963.23 785 765 187.9

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