ASTROSAT CZTI

Data Quality Report

Orbit 04703

Creation date: 2024-06-27T14:45:50.102769
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_235T01_9000000590_04703cztM0_level2.evt modeM0/AS1G05_235T01_9000000590_04703cztM0_level2_quad_clean.evt
Size (bytes)556,289,28085,440,960
Size530.5 MB 81.5 MB
Events in quadrant A2,929,443559,259
Events in quadrant B3,163,191568,201
Events in quadrant C3,151,966548,853
Events in quadrant D7,186,001481,488

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0129463
B0135342
C0135302
D0256092

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6143691.123230%
B6143590.960443%
C61431472.392968%
D6143104917.076347%

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 7453 6144 16 16 0.21% 0.26%
B 7453 6144 18 18 0.24% 0.29%
C 7453 6144 104 104 1.40% 1.69%
D 7453 6144 1001 1001 13.43% 16.29%

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 0 118 76059 506.93 733 720 148.6
A 0 226 14031 89.57 733 720 148.6
A 0 50 12136 76.81 733 720 148.6
B 15 204 75028 523.97 748 731 141.8
B 14 167 62472 435.42 748 731 141.8
B 15 54 41132 284.92 748 731 141.8
C 9 68 229595 1388.54 713 717 164.8
C 9 247 123280 743.56 713 717 164.8
C 7 158 10856 61.51 713 717 164.8
D 2 63 4140358 25794.86 667 649 160.5
D 13 235 122358 758.38 667 649 160.5
D 2 14 109731 679.7 667 649 160.5

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