ASTROSAT CZTI

Data Quality Report

Orbit 40607

Creation date: 2024-06-27T22:18:09.276091
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/AS1A12_054T02_9000005550_40607cztM0_level2.fits modeM0/AS1A12_054T02_9000005550_40607cztM0_level2_quad_clean.evt
Size (bytes)338,209,92082,408,320
Size322.5 MB 78.6 MB
Events in quadrant A2,657,644572,669
Events in quadrant B3,401,559573,913
Events in quadrant C2,593,339551,646
Events in quadrant D3,486,188454,855

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0980
B0980
C0980
D0980

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0107003
B0132012
C0106962
D0137622

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0360
B0360
C0360
D0370

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A488370.143354%
B48831994.075364%
C4883460.942044%
D488362212.738071%

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 7005 4884 4 4 0.06% 0.08%
B 7005 4884 168 168 2.40% 3.44%
C 7005 4884 42 42 0.60% 0.86%
D 7005 4884 163 163 2.33% 3.34%

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 10 83 474481 4201.11 553 543 112.8
A 5 168 26805 232.79 553 543 112.8
A 12 189 11561 97.67 553 543 112.8
B 0 190 830441 8149.05 537 524 101.8
B 0 229 169921 1663.33 537 524 101.8
B 3 112 144705 1415.73 537 524 101.8
C 14 254 261057 2095.26 530 533 124.3
C 15 214 216216 1734.62 530 533 124.3
C 0 10 36894 292.43 530 533 124.3
D 12 227 949310 7566.04 505 488 125.4
D 12 191 168715 1341.47 505 488 125.4
D 2 249 113944 904.71 505 488 125.4

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