ASTROSAT CZTI

Data Quality Report

Orbit 29223

Creation date: 2024-06-27T20:01:41.734701
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_102T02_9000004200_29223cztM0_level2.evt modeM0/AS1A10_102T02_9000004200_29223cztM0_level2_quad_clean.evt
Size (bytes)496,889,280108,195,840
Size473.9 MB 103.2 MB
Events in quadrant A3,070,484736,553
Events in quadrant B4,009,107731,730
Events in quadrant C3,181,447701,970
Events in quadrant D4,373,847680,872

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128141
B0157551
C0129511
D0169371

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6096510.836614%
B60972263.706741%
C6097891.459734%
D60972423.969165%

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 7291 6097 0 0 0.00% 0.00%
B 7292 6098 104 104 1.43% 1.71%
C 7292 6098 0 0 0.00% 0.00%
D 7292 6098 207 207 2.84% 3.39%

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 13 254 11001 65.11 794 781 157.0
A 0 13 8588 49.73 794 781 157.0
A 3 137 7260 41.27 794 781 157.0
B 10 245 631841 4388.84 765 746 143.8
B 0 229 274905 1906.59 765 746 143.8
B 0 183 70240 483.28 765 746 143.8
C 3 233 132813 778.32 744 748 169.7
C 14 238 127517 747.11 744 748 169.7
C 2 114 14276 79.73 744 748 169.7
D 1 52 1151428 6545.55 753 737 175.8
D 8 195 123779 699.91 753 737 175.8
D 2 250 73361 413.11 753 737 175.8

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