ASTROSAT CZTI

Data Quality Report

Orbit 04205

Creation date: 2024-06-27T14:38:46.003836
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_240T01_9000000536_04205cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04205cztM0_level2_quad_clean.evt
Size (bytes)809,988,480101,903,040
Size772.5 MB 97.2 MB
Events in quadrant A6,766,414616,114
Events in quadrant B8,752,789596,245
Events in quadrant C4,504,235627,056
Events in quadrant D3,890,500613,472

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01862
B01862
C01862
D01862

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A026612237
B032700463
C020033195
D018813124

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A91178389.191620%
B9097114412.575574%
C9120410.449561%
D9128270.295793%

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 9684 9188 587 587 6.06% 6.39%
B 9684 9185 815 815 8.42% 8.87%
C 9684 9182 5 5 0.05% 0.05%
D 9684 9188 4 4 0.04% 0.04%

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 50 2003725 9935.16 982 956 201.6
A 15 234 488003 2416.1 982 956 201.6
A 5 113 249140 1231.17 982 956 201.6
B 3 0 3720826 19282.37 997 974 192.9
B 14 167 1008210 5221.15 997 974 192.9
B 15 204 64361 328.58 997 974 192.9
C 9 144 566078 2430.27 998 1006 232.5
C 8 128 18378 74.71 998 1006 232.5
C 13 61 8145 30.7 998 1006 232.5
D 13 239 81336 335.01 995 968 239.9
D 13 223 21757 86.66 995 968 239.9
D 2 14 12959 49.98 995 968 239.9

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