ASTROSAT CZTI

Data Quality Report

Orbit 13030

Creation date: 2024-06-27T16:35:17.308659
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/AS1A04_216T01_9000001916_13030cztM0_level2.evt modeM0/AS1A04_216T01_9000001916_13030cztM0_level2_quad_clean.evt
Size (bytes)617,423,04084,389,760
Size588.8 MB 80.5 MB
Events in quadrant A3,737,362552,589
Events in quadrant B7,351,202421,876
Events in quadrant C3,295,079558,663
Events in quadrant D3,834,083527,998

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0156313
B0264132
C0147572
D0161522

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70842623.698475%
B7084202728.613778%
C70841552.188029%
D70842443.444382%

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 7510 7086 50 50 0.67% 0.71%
B 7510 7086 1282 1282 17.07% 18.09%
C 7510 7086 0 0 0.00% 0.00%
D 7510 7086 67 67 0.89% 0.95%

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 15 223 172116 992.34 848 830 172.6
A 12 189 171095 986.42 848 830 172.6
A 15 239 59226 338.31 848 830 172.6
B 4 239 3557351 26132.82 713 692 136.1
B 3 64 818686 6010.27 713 692 136.1
B 4 173 89652 653.64 713 692 136.1
C 7 238 15507 75.46 838 839 194.4
C 13 61 6043 26.77 838 839 194.4
C 8 222 5187 22.37 838 839 194.4
D 1 52 539732 2702.65 829 803 199.4
D 8 195 107114 533.13 829 803 199.4
D 14 34 40641 199.78 829 803 199.4

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