ASTROSAT CZTI

Data Quality Report

Orbit 02463

Creation date: 2024-06-27T14:18:08.258057
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/AS1G02_018T06_9000000370_02463cztM0_level2.evt modeM0/AS1G02_018T06_9000000370_02463cztM0_level2_quad_clean.evt
Size (bytes)174,222,72019,929,600
Size166.2 MB 19.0 MB
Events in quadrant A1,196,711105,193
Events in quadrant B1,231,439110,793
Events in quadrant C1,461,596109,474
Events in quadrant D1,222,822106,236

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0500
B0500
C0500
D0500

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050622
B051251
C058371
D052161

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A23731184.972609%
B23731114.677623%
C23731184.972609%
D2373873.666245%

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 3164 2375 0 0 0.00% 0.00%
B 3164 2375 0 0 0.00% 0.00%
C 3164 2375 17 17 0.54% 0.72%
D 3164 2375 2 2 0.06% 0.08%

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 12 194 3536 48.58 310 301 66.6
A 0 226 3241 44.15 310 301 66.6
A 14 63 1399 16.49 310 301 66.6
B 4 173 13031 201.3 314 305 63.2
B 12 111 4754 70.37 314 305 63.2
B 11 111 3914 57.09 314 305 63.2
C 7 220 135318 1878.14 302 302 71.9
C 14 223 124986 1734.41 302 302 71.9
C 8 112 7626 101.88 302 302 71.9
D 12 79 44975 607.59 302 293 73.5
D 7 67 6685 86.92 302 293 73.5
D 2 184 6668 86.69 302 293 73.5

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