ASTROSAT CZTI

Data Quality Report

Orbit 03562

Creation date: 2024-06-27T14:31:00.215582
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_045T01_9000000468_03562cztM0_level2.evt modeM0/AS1G05_045T01_9000000468_03562cztM0_level2_quad_clean.evt
Size (bytes)431,280,00071,092,800
Size411.3 MB 67.8 MB
Events in quadrant A2,832,002439,510
Events in quadrant B3,778,414431,886
Events in quadrant C3,054,841435,817
Events in quadrant D2,980,997419,031

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0127912
B0154671
C0132201
D0133991

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6107460.753234%
B6107891.457344%
C6107490.802358%
D61071051.719338%

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 7272 6107 4 4 0.06% 0.07%
B 7272 6108 41 41 0.56% 0.67%
C 7272 6107 1 1 0.01% 0.02%
D 7272 6107 64 64 0.88% 1.05%

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 43794 297.57 704 687 144.9
A 0 50 38347 259.97 704 687 144.9
A 0 118 22402 149.9 704 687 144.9
B 15 204 635285 4658.6 713 696 136.2
B 4 81 168173 1229.47 713 696 136.2
B 4 172 56115 406.84 713 696 136.2
C 15 208 300385 1840.28 697 701 162.8
C 12 4 12827 74.46 697 701 162.8
C 1 16 11188 64.4 697 701 162.8
D 13 25 145561 882.43 688 670 164.2
D 13 70 108952 659.47 688 670 164.2
D 1 20 50269 302.07 688 670 164.2

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