ASTROSAT CZTI

Data Quality Report

Orbit 07673

Creation date: 2024-06-27T15:22:33.454064
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/AS1A02_029T01_9000001058_07673cztM0_level2.evt modeM0/AS1A02_029T01_9000001058_07673cztM0_level2_quad_clean.evt
Size (bytes)505,601,28081,406,080
Size482.2 MB 77.6 MB
Events in quadrant A3,396,357501,164
Events in quadrant B3,668,603509,160
Events in quadrant C3,350,223500,545
Events in quadrant D4,419,775464,613

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0200
B0200
C0200
D0210

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145523
B0152312
C0145572
D0176142

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01420
B01420
C01420
D01420

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70271522.163085%
B70271602.276932%
C70271241.764622%
D70273394.824249%

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 8002 7028 0 0 0.00% 0.00%
B 8002 7027 3 3 0.04% 0.04%
C 8002 7028 0 0 0.00% 0.00%
D 8002 7027 163 163 2.04% 2.32%

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 0 226 8518 42.56 880 860 179.9
A 12 194 7695 37.99 880 860 179.9
A 13 14 6152 29.41 880 860 179.9
B 0 214 91484 542.18 876 853 167.2
B 0 229 56567 333.3 876 853 167.2
B 4 173 34985 204.19 876 853 167.2
C 8 208 11738 54.73 853 856 198.8
C 13 61 6638 29.08 853 856 198.8
C 9 68 6256 27.16 853 856 198.8
D 12 0 629228 3031.28 848 821 207.3
D 2 152 275455 1324.77 848 821 207.3
D 13 104 147631 708.18 848 821 207.3

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