ASTROSAT CZTI

Data Quality Report

Orbit 19886

Creation date: 2024-06-27T18:08:19.110770
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/AS1T03_118T01_9000002962_19886cztM0_level2.evt modeM0/AS1T03_118T01_9000002962_19886cztM0_level2_quad_clean.evt
Size (bytes)471,525,12083,090,880
Size449.7 MB 79.2 MB
Events in quadrant A3,368,489534,923
Events in quadrant B3,514,652537,180
Events in quadrant C3,439,754503,028
Events in quadrant D3,526,504498,210

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140302
B0144672
C0141902
D0146802

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6342540.851466%
B6342951.497950%
C63421001.576790%
D6342600.946074%

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 7587 6342 6 6 0.08% 0.09%
B 7587 6342 7 7 0.09% 0.11%
C 7587 6342 0 0 0.00% 0.00%
D 7587 6342 13 13 0.17% 0.20%

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 9 143 33253 187.64 866 851 172.7
A 0 226 7377 37.79 866 851 172.7
A 3 137 6588 33.22 866 851 172.7
B 7 220 51335 312.12 864 846 161.8
B 0 197 24385 145.51 864 846 161.8
B 12 111 18593 109.71 864 846 161.8
C 14 238 133632 686.52 834 842 193.4
C 9 221 49244 250.24 834 842 193.4
C 7 220 7425 34.03 834 842 193.4
D 12 218 158642 779.55 842 820 202.5
D 1 52 94927 464.83 842 820 202.5
D 5 222 34445 166.09 842 820 202.5

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