ASTROSAT CZTI

Data Quality Report

Orbit 08369

Creation date: 2024-06-27T15:31:44.632014
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_036T01_9000001164_08369cztM0_level2.evt modeM0/AS1A03_036T01_9000001164_08369cztM0_level2_quad_clean.evt
Size (bytes)475,104,96094,541,760
Size453.1 MB 90.2 MB
Events in quadrant A4,065,390583,993
Events in quadrant B3,279,531623,420
Events in quadrant C3,054,516602,699
Events in quadrant D3,529,732582,019

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01400
B01400
C01400
D01400

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0167842
B0141741
C0139181
D0150871

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67465788.568040%
B67461482.193893%
C67461211.793655%
D67461652.445894%

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 7115 6745 384 384 5.40% 5.69%
B 7116 6747 5 5 0.07% 0.07%
C 7116 6747 0 0 0.00% 0.00%
D 7116 6747 19 19 0.27% 0.28%

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 15 236 1023357 6389.25 779 760 160.0
A 13 251 13397 78.95 779 760 160.0
A 1 162 9707 55.9 779 760 160.0
B 0 214 91735 594.93 803 784 152.9
B 15 204 17917 112.07 803 784 152.9
B 12 111 16109 100.24 803 784 152.9
C 1 16 17158 90.25 779 779 181.5
C 13 61 5855 27.97 779 779 181.5
C 3 202 1994 6.69 779 779 181.5
D 1 52 191902 920.78 776 757 207.6
D 8 195 62512 297.48 776 757 207.6
D 7 71 61958 294.82 776 757 207.6

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