ASTROSAT CZTI

Data Quality Report

Orbit 19165

Creation date: 2024-06-27T17:59:42.245916
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/AS1A05_046T01_9000002838_19165cztM0_level2.evt modeM0/AS1A05_046T01_9000002838_19165cztM0_level2_quad_clean.evt
Size (bytes)478,408,320106,099,200
Size456.2 MB 101.2 MB
Events in quadrant A3,252,674690,271
Events in quadrant B3,645,668715,162
Events in quadrant C3,782,015692,544
Events in quadrant D3,369,186664,408

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137382
B0148392
C0152362
D0143122

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6463530.820053%
B64621712.646240%
C64621662.568864%
D6462630.974930%

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 9088 6465 0 0 0.00% 0.00%
B 9087 6464 30 30 0.33% 0.46%
C 9087 6464 15 15 0.17% 0.23%
D 9087 6464 41 41 0.45% 0.63%

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 8 205 9106 49.08 841 825 168.7
A 13 254 8921 47.98 841 825 168.7
A 0 226 7419 39.08 841 825 168.7
B 3 112 245860 1522.99 846 826 160.9
B 7 220 37791 229.75 846 826 160.9
B 10 245 29019 175.23 846 826 160.9
C 3 233 461875 2415.04 819 828 190.9
C 14 238 127189 661.9 819 828 190.9
C 13 61 5838 26.24 819 828 190.9
D 11 176 241248 1204.77 820 796 199.6
D 2 234 26993 131.26 820 796 199.6
D 7 96 22778 110.14 820 796 199.6

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