ASTROSAT CZTI

Data Quality Report

Orbit 04590

Creation date: 2024-06-27T14:44:17.790069
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/AS1G05_191T01_9000000572_04590cztM0_level2.evt modeM0/AS1G05_191T01_9000000572_04590cztM0_level2_quad_clean.evt
Size (bytes)425,943,36080,182,080
Size406.2 MB 76.5 MB
Events in quadrant A3,012,892505,406
Events in quadrant B3,180,591505,370
Events in quadrant C2,958,139493,855
Events in quadrant D3,308,730472,819

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133112
B0135601
C0133271
D0144921

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6463440.680798%
B6463520.804580%
C6463240.371345%
D6463761.175924%

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 7498 6464 0 0 0.00% 0.00%
B 7498 6464 0 0 0.00% 0.00%
C 7498 6464 0 0 0.00% 0.00%
D 7498 6464 45 45 0.60% 0.70%

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 12 194 7638 43.66 781 767 157.4
A 0 226 7638 43.66 781 767 157.4
A 15 174 6466 36.21 781 767 157.4
B 15 204 40727 264.04 790 774 151.3
B 4 172 20894 132.97 790 774 151.3
B 14 167 17092 107.84 790 774 151.3
C 9 54 7686 39.28 754 759 176.4
C 13 61 6111 30.35 754 759 176.4
C 7 247 4858 23.24 754 759 176.4
D 13 235 173501 957.4 742 724 180.5
D 10 15 119404 657.63 742 724 180.5
D 12 110 59928 328.06 742 724 180.5

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