ASTROSAT CZTI

Data Quality Report

Orbit 07990

Creation date: 2024-06-27T15:26:26.520254
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/AS1G06_028T01_9000001094_07990cztM0_level2.evt modeM0/AS1G06_028T01_9000001094_07990cztM0_level2_quad_clean.evt
Size (bytes)584,507,52096,243,840
Size557.4 MB 91.8 MB
Events in quadrant A4,636,537607,644
Events in quadrant B3,765,818641,679
Events in quadrant C3,373,397653,606
Events in quadrant D5,504,890577,273

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181233
B0152692
C0140232
D0205772

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62242824.530848%
B62242483.984576%
C6224841.349614%
D622499515.986504%

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 8899 6226 79 79 0.89% 1.27%
B 8899 6226 83 83 0.93% 1.33%
C 8899 6226 0 0 0.00% 0.00%
D 8899 6226 712 712 8.00% 11.44%

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 0 128 1091993 6872.27 790 776 158.8
A 15 239 323848 2034.64 790 776 158.8
A 4 2 144728 906.58 790 776 158.8
B 4 239 384410 2528.95 810 795 151.7
B 5 250 87887 574.15 810 795 151.7
B 11 51 62952 409.76 810 795 151.7
C 1 16 223961 1201.72 805 813 185.7
C 13 61 6052 28.21 805 813 185.7
C 14 67 4064 17.51 805 813 185.7
D 1 83 1863082 10300.8 740 719 180.8
D 1 52 670919 3706.9 740 719 180.8
D 2 136 56454 308.27 740 719 180.8

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