ASTROSAT CZTI

Data Quality Report

Orbit 30658

Creation date: 2024-06-27T20:18:14.802150
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/AS1C05_007T01_9000004418_30658cztM0_level2.evt modeM0/AS1C05_007T01_9000004418_30658cztM0_level2_quad_clean.evt
Size (bytes)702,365,76072,924,480
Size669.8 MB 69.5 MB
Events in quadrant A3,939,167465,429
Events in quadrant B5,216,553465,078
Events in quadrant C4,056,702437,720
Events in quadrant D7,644,398410,085

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0155582
B0195462
C0164822
D0270854

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0210
C0210
D0210

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61571842.988468%
B61571662.696118%
C61572183.540685%
D61565979.697856%

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 7502 6158 63 63 0.84% 1.02%
B 7502 6158 0 0 0.00% 0.00%
C 7502 6158 31 31 0.41% 0.50%
D 7501 6157 531 531 7.08% 8.62%

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 0 13 391761 2168.32 916 903 180.3
A 13 254 11102 56.58 916 903 180.3
A 8 192 11011 56.07 916 903 180.3
B 6 159 1656301 9854.78 903 885 168.0
B 12 111 19640 111.65 903 885 168.0
B 11 111 17898 101.28 903 885 168.0
C 3 233 371754 1888.22 860 871 196.4
C 14 238 143122 724.22 860 871 196.4
C 0 10 121334 613.29 860 871 196.4
D 8 195 4204573 19632.13 858 841 214.1
D 12 227 82591 381.79 858 841 214.1
D 2 250 64782 298.62 858 841 214.1

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