ASTROSAT CZTI

Data Quality Report

Orbit 09290

Creation date: 2024-06-27T15:43:59.932317
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/AS1G07_077T02_9000001308_09290cztM0_level2.evt modeM0/AS1G07_077T02_9000001308_09290cztM0_level2_quad_clean.evt
Size (bytes)449,844,48084,905,280
Size429.0 MB 81.0 MB
Events in quadrant A4,381,382529,451
Events in quadrant B2,906,789549,938
Events in quadrant C2,775,723552,246
Events in quadrant D3,157,272525,550

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171292
B0126652
C0123596
D0134152

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59271672.817614%
B5927430.725494%
C5925350.590717%
D5927691.164164%

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 7132 5928 92 92 1.29% 1.55%
B 7132 5928 0 0 0.00% 0.00%
C 7132 5928 0 0 0.00% 0.00%
D 7132 5928 21 21 0.29% 0.35%

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 8 5 1267916 8900.38 704 689 142.4
A 15 223 93106 649.09 704 689 142.4
A 15 239 78469 546.29 704 689 142.4
B 0 219 48861 358.79 715 699 134.2
B 0 245 24529 177.53 715 699 134.2
B 4 80 16461 117.42 715 699 134.2
C 10 22 17671 105.48 703 706 160.8
C 14 67 10675 61.98 703 706 160.8
C 13 61 5262 28.33 703 706 160.8
D 1 52 212456 1170.68 694 675 180.9
D 7 71 171885 946.41 694 675 180.9
D 2 152 49874 271.96 694 675 180.9

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