ASTROSAT CZTI

Data Quality Report

Orbit 12580

Creation date: 2024-06-27T16:29:30.608534
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/AS1A04_130T04_9000001872_12580cztM0_level2.evt modeM0/AS1A04_130T04_9000001872_12580cztM0_level2_quad_clean.evt
Size (bytes)354,746,88075,703,680
Size338.3 MB 72.2 MB
Events in quadrant A2,420,103487,687
Events in quadrant B2,768,869500,067
Events in quadrant C2,488,563490,035
Events in quadrant D2,722,420461,922

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150424288
B0171845482
C0153244415
D0166534988

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014446
B014533
C014543
D014646

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5070490.966469%
B49901813.627255%
C5027561.113984%
D5044911.804124%

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 9543 5521 0 0 0.00% 0.00%
B 9543 5432 41 41 0.43% 0.75%
C 9543 5481 7 7 0.07% 0.13%
D 9543 5503 62 62 0.65% 1.13%

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 0 226 5522 38.26 628 614 128.3
A 12 189 5369 37.06 628 614 128.3
A 12 194 4836 32.91 628 614 128.3
B 4 239 186747 1548.84 623 608 120.2
B 3 64 74066 611.23 623 608 120.2
B 11 51 34509 282.09 623 608 120.2
C 15 208 104121 731.13 610 611 141.6
C 13 61 4490 27.4 610 611 141.6
C 8 222 2089 10.44 610 611 141.6
D 1 52 372379 2565.47 600 582 144.9
D 13 249 42343 288.16 600 582 144.9
D 2 234 17797 118.79 600 582 144.9

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