ASTROSAT CZTI

Data Quality Report

Orbit 09973

Creation date: 2024-06-27T15:53:10.659365
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/AS1G07_047T01_9000001424_09973cztM0_level2.evt modeM0/AS1G07_047T01_9000001424_09973cztM0_level2_quad_clean.evt
Size (bytes)557,861,76086,506,560
Size532.0 MB 82.5 MB
Events in quadrant A5,228,998536,400
Events in quadrant B3,111,736572,836
Events in quadrant C2,887,388562,434
Events in quadrant D5,246,926515,158

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01972841
B01328719
C0128044
D01970620

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A618673311.849337%
B6188711.147382%
C6194200.322893%
D61912053.311258%

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 7550 6193 605 605 8.01% 9.77%
B 7550 6195 9 9 0.12% 0.15%
C 7550 6196 0 0 0.00% 0.00%
D 7550 6195 215 215 2.85% 3.47%

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 13 251 2397948 16026.85 730 716 149.6
A 15 174 23815 154.43 730 716 149.6
A 0 226 6978 41.87 730 716 149.6
B 4 239 62605 427.36 766 751 144.7
B 0 187 17530 115.93 766 751 144.7
B 0 214 14442 94.59 766 751 144.7
C 8 208 14288 79.69 734 739 170.0
C 14 67 8198 43.87 734 739 170.0
C 13 61 5539 28.23 734 739 170.0
D 1 52 1384483 7392.52 711 694 187.2
D 2 16 566876 3024.68 711 694 187.2
D 8 195 289228 1541.42 711 694 187.2

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