ASTROSAT CZTI

Data Quality Report

Orbit 05242

Creation date: 2024-06-27T14:52:58.934756
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/AS1C01_015T01_9000000668_05242cztM0_level2.evt modeM0/AS1C01_015T01_9000000668_05242cztM0_level2_quad_clean.evt
Size (bytes)529,701,12061,968,960
Size505.2 MB 59.1 MB
Events in quadrant A3,017,589367,766
Events in quadrant B3,094,453369,078
Events in quadrant C3,029,424363,127
Events in quadrant D6,455,818319,163

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A060
B060
C060
D060

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0134762
B0135341
C0135821
D0235181

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65401842.813456%
B65401983.027523%
C65401322.018349%
D6540123418.868502%

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 7190 6540 1 1 0.01% 0.02%
B 7190 6540 0 0 0.00% 0.00%
C 7190 6540 1 1 0.01% 0.02%
D 7190 6540 869 869 12.09% 13.29%

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 0 226 7735 43.32 781 763 160.9
A 12 194 7648 42.78 781 763 160.9
A 14 111 4154 21.07 781 763 160.9
B 0 229 32637 207.22 783 763 153.8
B 12 111 15433 95.37 783 763 153.8
B 7 252 13609 83.51 783 763 153.8
C 1 16 38093 211.41 752 756 176.6
C 7 159 22909 125.43 752 756 176.6
C 14 67 12851 68.48 752 756 176.6
D 11 145 3514659 20147.47 699 676 174.4
D 8 195 220774 1261.93 699 676 174.4
D 2 136 29997 168.11 699 676 174.4

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