ASTROSAT CZTI

Data Quality Report

Orbit 25084

Creation date: 2024-06-27T19:13:39.451288
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/AS1T03_206T01_9000003672_25084cztM0_level2.evt modeM0/AS1T03_206T01_9000003672_25084cztM0_level2_quad_clean.evt
Size (bytes)492,033,60093,888,000
Size469.2 MB 89.5 MB
Events in quadrant A3,144,804624,371
Events in quadrant B3,345,231645,599
Events in quadrant C3,188,043595,902
Events in quadrant D4,811,881553,744

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A012261
B012261
C012261
D012261

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129960
B0136620
C0130770
D0184800

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6071290.477681%
B6071530.873003%
C6070741.219110%
D60701933.179572%

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 7421 6072 0 0 0.00% 0.00%
B 7421 6072 12 12 0.16% 0.20%
C 7420 6071 3 3 0.04% 0.05%
D 7420 6071 123 123 1.66% 2.03%

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 13 254 11575 66.36 812 798 162.4
A 13 34 8421 46.94 812 798 162.4
A 0 226 7212 39.49 812 798 162.4
B 0 190 50571 328.75 818 801 151.4
B 0 229 44963 291.71 818 801 151.4
B 5 172 34882 225.12 818 801 151.4
C 14 238 124734 688.67 775 784 180.0
C 0 10 15280 80.54 775 784 180.0
C 7 247 12810 66.82 775 784 180.0
D 8 195 621015 3307.46 768 746 187.5
D 9 35 604463 3219.2 768 746 187.5
D 1 52 245544 1305.34 768 746 187.5

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