ASTROSAT CZTI

Data Quality Report

Orbit 10564

Creation date: 2024-06-27T16:00:52.503340
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_004T01_9000001532_10564cztM0_level2.evt modeM0/AS1G07_004T01_9000001532_10564cztM0_level2_quad_clean.evt
Size (bytes)475,490,880101,494,080
Size453.5 MB 96.8 MB
Events in quadrant A2,998,610651,844
Events in quadrant B4,134,494662,112
Events in quadrant C2,998,643685,032
Events in quadrant D3,846,815641,241

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130923
B0165132
C0131462
D0155072

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6203490.789940%
B62033685.932613%
C6203510.822183%
D6203941.515396%

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 7433 6204 0 0 0.00% 0.00%
B 7433 6204 210 210 2.83% 3.38%
C 7433 6204 0 0 0.00% 0.00%
D 7433 6204 38 38 0.51% 0.61%

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 1 162 22549 142.55 762 746 153.0
A 13 251 15432 96.02 762 746 153.0
A 13 253 9531 57.44 762 746 153.0
B 4 239 1040955 7316.8 759 741 142.2
B 0 219 62332 433.22 759 741 142.2
B 0 214 32146 220.9 759 741 142.2
C 14 234 14846 80.63 764 770 174.6
C 13 61 5628 27.83 764 770 174.6
C 4 175 2168 8.01 764 770 174.6
D 8 195 470628 2490.23 742 727 188.7
D 2 16 241502 1275.98 742 727 188.7
D 1 52 135815 715.9 742 727 188.7

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