ASTROSAT CZTI

Data Quality Report

Orbit 37011

Creation date: 2024-06-27T21:34:14.610392
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/AS1C07_015T03_9000005260_37011cztM0_level2.evt modeM0/AS1C07_015T03_9000005260_37011cztM0_level2_quad_clean.evt
Size (bytes)438,834,24071,645,760
Size418.5 MB 68.3 MB
Events in quadrant A2,754,216458,128
Events in quadrant B3,313,577464,337
Events in quadrant C3,745,224445,040
Events in quadrant D3,114,813428,339

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115263
B0132132
C0144982
D0127422

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5329190.356540%
B53292063.865641%
C53291883.527866%
D5329761.426159%

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 7122 5330 2 2 0.03% 0.04%
B 7122 5330 127 127 1.78% 2.38%
C 7122 5330 177 177 2.49% 3.32%
D 7122 5330 65 65 0.91% 1.22%

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 211902 1612.9 652 639 131.0
A 9 143 18665 137.62 652 639 131.0
A 3 137 6658 45.95 652 639 131.0
B 5 172 733249 6028.53 638 622 121.5
B 4 81 38213 309.32 638 622 121.5
B 0 213 29911 241.0 638 622 121.5
C 1 23 826517 5692.69 629 636 145.1
C 15 214 228935 1573.64 629 636 145.1
C 10 20 110516 757.39 629 636 145.1
D 2 250 161449 1058.15 629 613 152.0
D 12 235 134876 883.32 629 613 152.0
D 1 52 131996 864.38 629 613 152.0

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