ASTROSAT CZTI

Data Quality Report

Orbit 13749

Creation date: 2024-06-27T16:45:32.513960
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/AS1G08_062T01_9000002038_13749cztM0_level2.evt modeM0/AS1G08_062T01_9000002038_13749cztM0_level2_quad_clean.evt
Size (bytes)593,688,960111,646,080
Size566.2 MB 106.5 MB
Events in quadrant A3,115,773738,495
Events in quadrant B3,452,490736,242
Events in quadrant C3,208,385770,479
Events in quadrant D7,783,107702,209

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132313
B0143332
C0134152
D0274592

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6219280.450233%
B62191191.913491%
C6219290.466313%
D62195368.618749%

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 7515 6221 3 3 0.04% 0.05%
B 7515 6221 39 39 0.52% 0.63%
C 7515 6221 0 0 0.00% 0.00%
D 7515 6221 445 445 5.92% 7.15%

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 14046 81.77 798 784 162.2
A 1 162 12540 72.48 798 784 162.2
A 15 69 10141 57.69 798 784 162.2
B 3 64 172200 1133.79 798 780 151.2
B 0 219 77209 505.51 798 780 151.2
B 4 173 38312 248.24 798 780 151.2
C 3 233 117844 639.85 791 799 182.9
C 13 61 5736 26.99 791 799 182.9
C 12 4 3423 14.34 791 799 182.9
D 5 222 4279577 23946.53 743 725 178.7
D 13 168 338298 1889.22 743 725 178.7
D 1 52 253412 1414.16 743 725 178.7

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