ASTROSAT CZTI

Data Quality Report

Orbit 05200

Creation date: 2024-06-27T14:52:33.609664
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_104T01_9000000656_05200cztM0_level2.evt modeM0/AS1G05_104T01_9000000656_05200cztM0_level2_quad_clean.evt
Size (bytes)43,009,9207,467,840
Size41.0 MB 7.1 MB
Events in quadrant A327,71046,337
Events in quadrant B315,64344,629
Events in quadrant C292,20646,610
Events in quadrant D315,87531,708

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A07353
B07157
C07252
D07048

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A074135923
B073665940
C071105679
D0100108729

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73010.136986%
B70600.000000%
C71600.000000%
D53530.560748%

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 3607 1174 0 0 0.00% 0.00%
B 3614 1144 0 0 0.00% 0.00%
C 3612 1171 0 0 0.00% 0.00%
D 3611 889 1 1 0.03% 0.11%

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 4 2 25598 1422.91 77 75 17.9
A 0 50 3680 200.98 77 75 17.9
A 12 194 764 38.41 77 75 17.9
B 15 204 16862 990.01 76 74 17.0
B 0 219 1879 106.44 76 74 17.0
B 12 111 1168 64.51 76 74 17.0
C 1 16 5589 287.51 73 73 19.2
C 13 61 560 25.38 73 73 19.2
C 12 4 216 7.45 73 73 19.2
D 2 63 81105 5256.04 54 52 15.4
D 2 33 13831 893.53 54 52 15.4
D 2 136 7370 474.55 54 52 15.4

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