ASTROSAT CZTI

Data Quality Report

Orbit 10134

Creation date: 2024-06-27T15:55:26.323304
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/AS1A03_116T01_9000001460_10134cztM0_level2.evt modeM0/AS1A03_116T01_9000001460_10134cztM0_level2_quad_clean.evt
Size (bytes)469,693,44093,078,720
Size447.9 MB 88.8 MB
Events in quadrant A3,137,369598,158
Events in quadrant B3,528,793603,838
Events in quadrant C3,013,536592,807
Events in quadrant D4,091,911559,195

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0150

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138973
B0147632
C0137052
D0164492

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6666380.570057%
B6666480.720072%
C6666190.285029%
D66661251.875188%

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 7566 6667 1 1 0.01% 0.01%
B 7566 6667 10 10 0.13% 0.15%
C 7566 6667 0 0 0.00% 0.00%
D 7566 6667 97 97 1.28% 1.45%

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 17662 102.45 803 785 164.7
A 15 174 14620 83.98 803 785 164.7
A 13 251 9946 55.61 803 785 164.7
B 4 81 153187 984.08 806 787 154.9
B 0 189 54421 346.32 806 787 154.9
B 4 239 52013 330.78 806 787 154.9
C 14 67 6304 31.08 769 775 177.9
C 13 61 5837 28.45 769 775 177.9
C 14 234 5354 25.74 769 775 177.9
D 8 195 458024 2444.81 763 741 187.0
D 2 136 275843 1470.8 763 741 187.0
D 2 152 147363 783.9 763 741 187.0

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