ASTROSAT CZTI

Data Quality Report

Orbit 28583

Creation date: 2024-06-27T19:53:38.371496
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/AS1A10_102T03_9000004106_28583cztM0_level2.evt modeM0/AS1A10_102T03_9000004106_28583cztM0_level2_quad_clean.evt
Size (bytes)472,222,08090,665,280
Size450.3 MB 86.5 MB
Events in quadrant A3,173,848579,377
Events in quadrant B3,253,395589,997
Events in quadrant C3,194,007567,546
Events in quadrant D4,234,102550,801

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134391
B0136381
C0134581
D0166811

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6570440.669711%
B6571540.821793%
C6571650.989195%
D65711191.810988%

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 6570 0 0 0.00% 0.00%
B 7551 6571 4 4 0.05% 0.06%
C 7551 6571 0 0 0.00% 0.00%
D 7551 6571 77 77 1.02% 1.17%

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 47 13132 75.06 814 799 164.3
A 15 174 11059 62.44 814 799 164.3
A 13 254 10570 59.47 814 799 164.3
B 4 171 71812 458.56 803 782 154.9
B 12 111 19071 118.07 803 782 154.9
B 11 111 17754 109.57 803 782 154.9
C 14 238 124246 674.76 779 783 183.0
C 7 247 31178 166.12 779 783 183.0
C 13 61 5402 25.24 779 783 183.0
D 1 52 692623 3710.51 785 763 186.5
D 8 195 357468 1913.04 785 763 186.5
D 7 80 203585 1087.75 785 763 186.5

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