ASTROSAT CZTI

Data Quality Report

Orbit 29489

Creation date: 2024-06-27T20:04:38.407203
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/AS1A10_064T03_9000004246_29489cztM0_level2.evt modeM0/AS1A10_064T03_9000004246_29489cztM0_level2_quad_clean.evt
Size (bytes)906,217,920116,821,440
Size864.2 MB 111.4 MB
Events in quadrant A3,467,430819,251
Events in quadrant B3,562,301835,340
Events in quadrant C4,587,734775,098
Events in quadrant D15,326,801590,931

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151441
B0152861
C0186461
D0506351

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A74011121.513309%
B74021441.945420%
C74024235.714672%
D7402467663.172116%

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 7761 7402 3 3 0.04% 0.04%
B 7762 7403 6 6 0.08% 0.08%
C 7762 7403 3 3 0.04% 0.04%
D 7762 7403 4232 4232 54.52% 57.17%

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 96 17519 92.84 890 870 179.3
A 13 254 13794 72.07 890 870 179.3
A 5 98 9202 46.46 890 870 179.3
B 0 190 27485 159.66 882 857 166.8
B 0 156 26914 156.23 882 857 166.8
B 0 230 21328 122.74 882 857 166.8
C 3 233 817092 4200.87 840 843 194.3
C 14 238 205939 1055.54 840 843 194.3
C 7 247 163511 837.18 840 843 194.3
D 8 195 7181972 43224.67 695 674 166.1
D 1 52 2994970 18022.85 695 674 166.1
D 12 33 2274844 13688.37 695 674 166.1

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