ASTROSAT CZTI

Data Quality Report

Orbit 22568

Creation date: 2024-06-27T18:42:55.854726
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/AS1A07_054T01_9000003348_22568cztM0_level2.evt modeM0/AS1A07_054T01_9000003348_22568cztM0_level2_quad_clean.evt
Size (bytes)268,496,64066,470,400
Size256.1 MB 63.4 MB
Events in quadrant A1,938,075438,865
Events in quadrant B2,008,372442,390
Events in quadrant C1,920,136433,084
Events in quadrant D1,998,625423,508

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0780
B0780
C0780
D0780

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082551
B084881
C081421
D084991

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A3900260.666667%
B3900982.512821%
C3900792.025641%
D3900711.820513%

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 4895 3901 0 0 0.00% 0.00%
B 4895 3901 1 1 0.02% 0.03%
C 4895 3901 0 0 0.00% 0.00%
D 4895 3901 25 25 0.51% 0.64%

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 13 34 73375 751.83 483 474 97.0
A 13 254 6815 65.39 483 474 97.0
A 0 226 4209 38.52 483 474 97.0
B 15 33 100712 1094.96 479 466 91.6
B 0 190 18645 198.56 479 466 91.6
B 12 111 10586 110.53 479 466 91.6
C 14 238 74316 687.35 465 468 107.4
C 10 222 22164 201.94 465 468 107.4
C 0 10 7706 67.37 465 468 107.4
D 1 52 89342 777.81 470 456 114.3
D 2 153 53116 460.81 470 456 114.3
D 7 223 24720 212.33 470 456 114.3

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