ASTROSAT CZTI

Data Quality Report

Orbit 29023

Creation date: 2024-06-27T19:59:18.837793
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_123T02_9000004160_29023cztM0_level2.evt modeM0/AS1A10_123T02_9000004160_29023cztM0_level2_quad_clean.evt
Size (bytes)548,556,48097,761,600
Size523.1 MB 93.2 MB
Events in quadrant A3,113,326642,832
Events in quadrant B3,208,726677,254
Events in quadrant C3,372,759640,613
Events in quadrant D6,494,869563,861

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0131762
B0133772
C0138902
D0236152

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6241200.320461%
B6241450.721038%
C6241881.410030%
D624198315.750681%

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 7591 6242 0 0 0.00% 0.00%
B 7591 6242 3 3 0.04% 0.05%
C 7591 6242 6 6 0.08% 0.10%
D 7591 6242 899 899 11.84% 14.40%

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 13 254 10314 59.66 807 790 159.6
A 3 137 7487 41.95 807 790 159.6
A 0 226 6832 37.85 807 790 159.6
B 12 111 18284 115.36 813 794 151.6
B 11 111 16871 106.04 813 794 151.6
B 14 111 15513 97.09 813 794 151.6
C 14 238 129602 701.4 794 800 183.6
C 2 16 121488 657.21 794 800 183.6
C 3 233 14902 76.79 794 800 183.6
D 1 52 2552629 14750.47 735 718 173.0
D 7 80 899226 5193.52 735 718 173.0
D 8 195 256813 1480.27 735 718 173.0

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