ASTROSAT CZTI

Data Quality Report

Orbit 10367

Creation date: 2024-06-27T15:58:27.605003
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/AS1G07_048T01_9000001494_10367cztM0_level2.evt modeM0/AS1G07_048T01_9000001494_10367cztM0_level2_quad_clean.evt
Size (bytes)408,686,40068,192,640
Size389.8 MB 65.0 MB
Events in quadrant A2,727,948457,127
Events in quadrant B2,806,550443,698
Events in quadrant C2,647,728441,936
Events in quadrant D3,815,064332,505

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A02853016573
B03203420135
C02989818024
D04792933238

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A063
B063
C063
D052

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0291177
B0292166
C0292178
D0282154

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A58331031.765815%
B5584831.486390%
C5775751.298701%
D50351052.085402%

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 7693 7007 0 0 0.00% 0.00%
B 7693 6784 2 2 0.03% 0.03%
C 7691 6945 0 0 0.00% 0.00%
D 7693 6072 8 8 0.10% 0.13%

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 8 15 31412 212.61 699 682 144.5
A 0 226 6590 40.88 699 682 144.5
A 12 194 5699 34.71 699 682 144.5
B 0 214 73251 562.64 667 651 129.0
B 4 239 60949 467.3 667 651 129.0
B 11 51 49071 375.25 667 651 129.0
C 14 234 30589 192.03 670 671 155.8
C 13 61 5041 28.05 670 671 155.8
C 5 33 2537 11.98 670 671 155.8
D 1 20 637503 4506.91 586 568 141.3
D 5 222 604011 4269.92 586 568 141.3
D 8 195 197437 1393.03 586 568 141.3

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