ASTROSAT CZTI

Data Quality Report

Orbit 10375

Creation date: 2024-06-27T15:58:34.058098
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_119T02_9000001496_10375cztM0_level2.evt modeM0/AS1A03_119T02_9000001496_10375cztM0_level2_quad_clean.evt
Size (bytes)360,020,16085,147,200
Size343.3 MB 81.2 MB
Events in quadrant A2,324,410552,010
Events in quadrant B2,528,668564,180
Events in quadrant C2,323,745566,665
Events in quadrant D3,371,648530,771

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0105391
B0110351
C0105271
D0133851

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5210170.326296%
B5210360.690979%
C5210120.230326%
D52101041.996161%

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 6240 5211 0 0 0.00% 0.00%
B 6240 5211 3 3 0.05% 0.06%
C 6240 5211 0 0 0.00% 0.00%
D 6240 5211 88 88 1.41% 1.69%

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 3 1 9506 73.18 599 585 121.9
A 0 226 5467 40.05 599 585 121.9
A 12 194 4939 35.71 599 585 121.9
B 4 239 73970 643.61 604 590 114.0
B 0 214 48784 422.71 604 590 114.0
B 6 51 17983 152.55 604 590 114.0
C 14 234 8043 54.47 593 596 136.7
C 13 61 4420 27.97 593 596 136.7
C 3 202 1516 6.73 593 596 136.7
D 8 195 336102 2425.68 584 568 138.3
D 1 52 281569 2031.44 584 568 138.3
D 1 20 280717 2025.28 584 568 138.3

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