ASTROSAT CZTI

Data Quality Report

Orbit 11060

Creation date: 2024-06-27T16:07:41.549048
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_006T01_9000001608_11060cztM0_level2.evt modeM0/AS1C03_006T01_9000001608_11060cztM0_level2_quad_clean.evt
Size (bytes)547,107,84079,712,640
Size521.8 MB 76.0 MB
Events in quadrant A4,914,285475,524
Events in quadrant B4,390,778499,899
Events in quadrant C3,138,298502,151
Events in quadrant D3,680,673478,113

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0160
B0160
C0160
D0170

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0187002
B0171471
C0136361
D0151371

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01320
B01320
C01320
D01320

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65695418.235652%
B65693605.480286%
C6569901.370072%
D65691281.948546%

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 7564 6569 379 379 5.01% 5.77%
B 7564 6569 138 138 1.82% 2.10%
C 7564 6569 0 0 0.00% 0.00%
D 7564 6569 33 33 0.44% 0.50%

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 13 210 1537759 9227.62 816 799 166.6
A 15 174 158937 949.43 816 799 166.6
A 14 238 67479 400.33 816 799 166.6
B 4 239 981093 6253.72 820 801 156.8
B 0 197 68027 428.86 820 801 156.8
B 11 51 41899 262.18 820 801 156.8
C 13 61 5882 27.2 804 810 186.5
C 14 67 2859 10.99 804 810 186.5
C 14 234 2803 10.69 804 810 186.5
D 1 52 293006 1528.43 802 779 191.2
D 2 136 76503 396.06 802 779 191.2
D 10 253 72067 372.86 802 779 191.2

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