ASTROSAT CZTI

Data Quality Report

Orbit 05649

Creation date: 2024-06-27T14:57:35.364685
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/AS1G06_032T02_9000000730_05649cztM0_level2.evt modeM0/AS1G06_032T02_9000000730_05649cztM0_level2_quad_clean.evt
Size (bytes)603,066,24098,035,200
Size575.1 MB 93.5 MB
Events in quadrant A3,789,296618,115
Events in quadrant B5,654,355591,006
Events in quadrant C4,079,726616,314
Events in quadrant D4,198,741587,884

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168745
B0222517
C0175322
D0180832

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79951061.325829%
B79945226.529897%
C7996670.837919%
D79961101.375688%

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 8421 7999 14 14 0.17% 0.18%
B 8421 7999 242 242 2.87% 3.03%
C 8421 7999 9 9 0.11% 0.11%
D 8421 7999 24 24 0.29% 0.30%

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 63431 314.72 958 934 198.6
A 13 6 23088 111.56 958 934 198.6
A 12 194 9633 43.81 958 934 198.6
B 10 16 981885 5322.58 947 923 184.3
B 15 204 465361 2519.98 947 923 184.3
B 5 172 196219 1059.65 947 923 184.3
C 1 16 377512 1743.5 927 929 216.0
C 5 250 41672 188.63 927 929 216.0
C 8 128 12734 54.65 927 929 216.0
D 2 136 234821 1028.65 925 895 227.4
D 8 195 143290 626.16 925 895 227.4
D 12 233 133550 583.33 925 895 227.4

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