ASTROSAT CZTI

Data Quality Report

Orbit 46637

Creation date: 2024-06-27T23:25:43.278495
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/AS1A13_092T16_9000006244_46637cztM0_level2.fits modeM0/AS1A13_092T16_9000006244_46637cztM0_level2_quad_clean.evt
Size (bytes)573,649,920136,895,040
Size547.1 MB 130.6 MB
Events in quadrant A7,209,997934,891
Events in quadrant B4,088,196910,629
Events in quadrant C3,578,510908,104
Events in quadrant D5,779,171872,788

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0259993
B0173113
C0163113
D0223553

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74636078.133458%
B74644776.390675%
C74642142.867095%
D74645587.475884%

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 8708 7466 110 110 1.26% 1.47%
B 8709 7467 45 45 0.52% 0.60%
C 8709 7467 5 5 0.06% 0.07%
D 8709 7467 281 281 3.23% 3.76%

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 10 83 3627467 18610.51 919 898 194.9
A 13 254 12599 60.05 919 898 194.9
A 0 243 10225 47.86 919 898 194.9
B 5 32 259406 1423.49 893 867 181.6
B 0 189 104990 573.29 893 867 181.6
B 15 201 53121 287.71 893 867 181.6
C 14 254 53045 245.98 889 896 212.0
C 12 249 36332 167.15 889 896 212.0
C 3 233 8590 36.29 889 896 212.0
D 1 52 1294042 5491.48 902 872 235.5
D 12 128 320828 1358.7 902 872 235.5
D 13 249 212119 897.07 902 872 235.5

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