ASTROSAT CZTI

Data Quality Report

Orbit 42729

Creation date: 2024-06-27T22:43:32.198176
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/AS1A05_013T01_9000005822_42729cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42729cztM0_level2_quad_clean.evt
Size (bytes)1,157,515,200236,917,440
Size1.1 GB 225.9 MB
Events in quadrant A8,244,2641,681,512
Events in quadrant B7,868,6161,671,709
Events in quadrant C16,272,2091,258,533
Events in quadrant D9,264,0651,493,356

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0335293
B0340983
C0582463
D0386865

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0420
B0420
C0420
D0420

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03160
B03160
C03160
D03160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A15473310.200349%
B154732731.764364%
C15474365523.620266%
D154734152.682091%

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 19683 15476 7 7 0.04% 0.05%
B 19682 15475 230 230 1.17% 1.49%
C 19684 15476 3595 3595 18.26% 23.23%
D 19683 15476 349 349 1.77% 2.26%

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 1536549 4427.1 1697 1664 346.7
A 12 189 72495 204.3 1697 1664 346.7
A 13 248 46897 130.47 1697 1664 346.7
B 0 229 678534 2090.82 1670 1622 323.8
B 5 172 386939 1190.15 1670 1622 323.8
B 0 245 66169 199.37 1670 1622 323.8
C 8 79 10117367 31356.67 1383 1392 322.6
C 15 214 548255 1695.12 1383 1392 322.6
C 0 207 93787 286.4 1383 1392 322.6
D 2 249 1723213 4304.82 1632 1586 399.9
D 12 233 306083 761.38 1632 1586 399.9
D 13 112 207404 514.64 1632 1586 399.9

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