ASTROSAT CZTI

Data Quality Report

Orbit 12247

Creation date: 2024-06-27T16:24:25.330142
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/AS1C03_005T01_9000001810_12247cztM0_level2.evt modeM0/AS1C03_005T01_9000001810_12247cztM0_level2_quad_clean.evt
Size (bytes)444,219,840114,549,120
Size423.6 MB 109.2 MB
Events in quadrant A3,858,821768,285
Events in quadrant B3,390,874774,057
Events in quadrant C2,709,019767,120
Events in quadrant D3,087,555741,482

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153812
B0140331
C0122841
D0133761

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A59882163.607214%
B59882053.423514%
C5988330.551102%
D5988761.269205%

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 7009 5990 65 65 0.93% 1.09%
B 7009 5990 82 82 1.17% 1.37%
C 7009 5990 1 1 0.01% 0.02%
D 7009 5990 18 18 0.26% 0.30%

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 13 251 350252 2473.97 698 683 141.3
A 5 16 235351 1660.79 698 683 141.3
A 1 162 176984 1247.72 698 683 141.3
B 4 239 347317 2661.33 698 682 130.2
B 3 64 74515 566.86 698 682 130.2
B 11 51 65874 500.52 698 682 130.2
C 4 175 32510 207.92 672 677 153.1
C 1 16 21030 132.93 672 677 153.1
C 15 208 15984 99.98 672 677 153.1
D 1 52 115787 716.96 675 656 160.6
D 13 104 75847 468.24 675 656 160.6
D 2 33 60490 372.61 675 656 160.6

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