ASTROSAT CZTI

Data Quality Report

Orbit 15299

Creation date: 2024-06-27T17:06:25.679282
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/AS1A04_223T01_9000002258_15299cztM0_level2.evt modeM0/AS1A04_223T01_9000002258_15299cztM0_level2_quad_clean.evt
Size (bytes)507,672,000108,135,360
Size484.2 MB 103.1 MB
Events in quadrant A3,321,422727,114
Events in quadrant B3,916,604724,824
Events in quadrant C4,031,323700,213
Events in quadrant D3,670,318675,374

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0190

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0139733
B0158142
C0163042
D0151632

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6408841.310861%
B64081722.684145%
C64082313.604869%
D64082153.355181%

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 7729 6409 0 0 0.00% 0.00%
B 7729 6410 67 67 0.87% 1.05%
C 7729 6410 94 94 1.22% 1.47%
D 7729 6410 118 118 1.53% 1.84%

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 9 143 13014 70.23 861 845 173.3
A 0 226 7922 40.84 861 845 173.3
A 12 194 6621 33.33 861 845 173.3
B 10 16 456528 2845.39 847 830 160.2
B 3 209 28512 172.85 847 830 160.2
B 3 64 27257 165.01 847 830 160.2
C 4 254 492210 2635.93 813 819 186.4
C 3 233 360347 1928.59 813 819 186.4
C 7 247 6636 31.2 813 819 186.4
D 2 33 270933 1361.75 822 799 198.4
D 10 70 82476 411.74 822 799 198.4
D 13 122 57475 285.71 822 799 198.4

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