ASTROSAT CZTI

Data Quality Report

Orbit 10048

Creation date: 2024-06-27T15:54:13.804435
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_052T01_9000001436_10048cztM0_level2.evt modeM0/AS1A03_052T01_9000001436_10048cztM0_level2_quad_clean.evt
Size (bytes)416,868,48070,738,560
Size397.6 MB 67.5 MB
Events in quadrant A2,665,586470,184
Events in quadrant B2,989,395454,272
Events in quadrant C2,484,193459,893
Events in quadrant D4,116,319378,566

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A015442
B015428
C015244
D015444

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0173
B0173
C0174
D0174

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0159374351
B0181745796
C0154324115
D02586510260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5557140.251934%
B5367671.248370%
C558580.143241%
D501960111.974497%

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 9255 6750 0 0 0.00% 0.00%
B 9255 6574 23 23 0.25% 0.35%
C 9255 6752 0 0 0.00% 0.00%
D 9255 6161 574 574 6.20% 9.32%

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 120066 881.69 654 639 135.5
A 15 239 18783 133.95 654 639 135.5
A 0 226 5881 38.7 654 639 135.5
B 4 81 353579 2854.7 634 617 123.6
B 4 239 73223 587.23 634 617 123.6
B 10 247 43493 346.77 634 617 123.6
C 14 67 5179 30.55 634 637 148.7
C 13 61 4961 29.08 634 637 148.7
C 8 222 3562 19.67 634 637 148.7
D 1 20 1706147 11605.74 538 524 147.0
D 1 52 132838 900.32 538 524 147.0
D 7 71 49641 334.21 538 524 147.0

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