ASTROSAT CZTI

Data Quality Report

Orbit 05886

Creation date: 2024-06-27T15:00:27.672543
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/AS1G06_023T01_9000000762_05886cztM0_level2.evt modeM0/AS1G06_023T01_9000000762_05886cztM0_level2_quad_clean.evt
Size (bytes)464,431,68091,108,800
Size442.9 MB 86.9 MB
Events in quadrant A2,946,368593,467
Events in quadrant B3,719,140581,699
Events in quadrant C2,875,721574,938
Events in quadrant D4,076,152549,047

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135553
B0158912
C0134302
D0168602

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6595220.333586%
B6595731.106899%
C6595160.242608%
D6595610.924943%

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 7595 6596 2 2 0.03% 0.03%
B 7595 6596 12 12 0.16% 0.18%
C 7595 6596 0 0 0.00% 0.00%
D 7595 6596 26 26 0.34% 0.39%

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 15 234 47823 308.83 750 737 152.5
A 15 236 11698 71.89 750 737 152.5
A 0 226 7485 44.26 750 737 152.5
B 4 200 593814 4098.37 756 739 144.7
B 15 204 71597 489.66 756 739 144.7
B 4 81 48188 327.89 756 739 144.7
C 1 16 9718 52.49 733 736 171.1
C 13 61 5986 30.68 733 736 171.1
C 8 222 3179 14.28 733 736 171.1
D 1 20 739716 4172.67 728 706 177.1
D 2 152 324477 1828.11 728 706 177.1
D 1 239 99402 557.27 728 706 177.1

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