ASTROSAT CZTI

Data Quality Report

Orbit 10199

Creation date: 2024-06-27T15:56:14.607261
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/AS1A03_050T01_9000001468_10199cztM0_level2.evt modeM0/AS1A03_050T01_9000001468_10199cztM0_level2_quad_clean.evt
Size (bytes)442,854,72081,313,920
Size422.3 MB 77.5 MB
Events in quadrant A3,001,135508,327
Events in quadrant B3,098,182517,943
Events in quadrant C2,677,356525,529
Events in quadrant D4,229,384493,499

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130422
B0130223
C0121461
D0164011

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01200
B01200
C01200
D01200

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59761302.175368%
B5975761.271967%
C5976430.719545%
D59761232.058233%

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 6981 5976 65 65 0.93% 1.09%
B 6981 5976 11 11 0.16% 0.18%
C 6981 5976 0 0 0.00% 0.00%
D 6981 5976 62 62 0.89% 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 15 223 221651 1579.61 693 678 139.9
A 15 239 88433 627.31 693 678 139.9
A 15 255 10829 72.56 693 678 139.9
B 0 214 102313 765.97 699 681 132.7
B 5 255 94487 706.98 699 681 132.7
B 0 189 53337 396.85 699 681 132.7
C 14 67 5755 32.15 684 687 157.6
C 13 61 5050 27.68 684 687 157.6
C 4 175 3260 16.32 684 687 157.6
D 8 195 476020 2952.51 676 655 161.0
D 1 52 348328 2159.41 676 655 161.0
D 2 179 299317 1855.0 676 655 161.0

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