ASTROSAT CZTI

Data Quality Report

Orbit 29454

Creation date: 2024-06-27T20:04:16.575304
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/AS1A10_094T02_9000004238_29454cztM0_level2.evt modeM0/AS1A10_094T02_9000004238_29454cztM0_level2_quad_clean.evt
Size (bytes)697,314,240104,359,680
Size665.0 MB 99.5 MB
Events in quadrant A2,913,386738,415
Events in quadrant B2,952,599761,053
Events in quadrant C3,152,935720,867
Events in quadrant D11,709,820536,320

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123682
B0124132
C0130184
D0387202

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01180
B01180
C01180
D01180

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0180
C0180
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5756320.555942%
B5756310.538568%
C57551672.901825%
D5755320055.603823%

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 6961 5757 3 3 0.04% 0.05%
B 6961 5757 0 0 0.00% 0.00%
C 6960 5756 0 0 0.00% 0.00%
D 6960 5756 3061 3061 43.98% 53.18%

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 13 75448 512.17 735 722 145.9
A 13 254 11544 74.17 735 722 145.9
A 3 137 6772 41.47 735 722 145.9
B 5 255 18313 128.36 737 720 137.1
B 0 155 18254 127.93 737 720 137.1
B 0 230 18004 126.1 737 720 137.1
C 14 238 162246 988.23 708 710 163.5
C 3 233 151656 923.45 708 710 163.5
C 14 254 63741 385.61 708 710 163.5
D 8 195 6605618 46209.09 599 585 142.9
D 1 52 1439466 10066.47 599 585 142.9
D 12 33 1039717 7269.81 599 585 142.9

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