ASTROSAT CZTI

Data Quality Report

Orbit 46770

Creation date: 2024-06-27T23:27:26.415774
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/AS1A13_053T01_9000006266_46770cztM0_level2.fits modeM0/AS1A13_053T01_9000006266_46770cztM0_level2_quad_clean.evt
Size (bytes)495,889,920112,141,440
Size472.9 MB 106.9 MB
Events in quadrant A6,390,951751,763
Events in quadrant B3,702,442763,595
Events in quadrant C3,185,677735,235
Events in quadrant D4,521,390645,920

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0233207
B0158773
C0148780
D0185900

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7160630.879888%
B7160811.131285%
C7163260.362976%
D71634336.044953%

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 7162 7161 29 29 0.40% 0.40%
B 7162 7161 55 55 0.77% 0.77%
C 7163 7163 23 23 0.32% 0.32%
D 7163 7163 398 398 5.56% 5.56%

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 10 83 3214102 20067.87 770 752 160.1
A 13 248 106734 661.87 770 752 160.1
A 9 191 68526 423.26 770 752 160.1
B 3 112 271149 1804.6 764 741 149.8
B 4 171 107163 710.22 764 741 149.8
B 0 245 76690 506.86 764 741 149.8
C 14 254 104601 577.57 761 764 179.8
C 3 233 71819 395.23 761 764 179.8
C 12 249 26583 143.61 761 764 179.8
D 13 249 1315928 7089.12 741 716 185.5
D 11 224 168647 905.16 741 716 185.5
D 1 52 60309 321.21 741 716 185.5

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