ASTROSAT CZTI

Data Quality Report

Orbit 03348

Creation date: 2024-06-27T14:27:52.404947
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/AS1G05_246T01_9000000450_03348cztM0_level2.evt modeM0/AS1G05_246T01_9000000450_03348cztM0_level2_quad_clean.evt
Size (bytes)530,233,92074,937,600
Size505.7 MB 71.5 MB
Events in quadrant A3,402,439439,420
Events in quadrant B4,115,899450,929
Events in quadrant C4,290,425440,143
Events in quadrant D3,751,880428,296

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0153731
B0168450
C0178160
D0166870

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A73262633.589954%
B73262403.276003%
C73263464.722905%
D73262583.521704%

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 7326 7326 5 5 0.07% 0.07%
B 7326 7326 1 1 0.01% 0.01%
C 7326 7326 153 153 2.09% 2.09%
D 7326 7326 83 83 1.13% 1.13%

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 50 49258 268.21 866 844 180.5
A 0 118 10297 52.37 866 844 180.5
A 0 226 9689 49.0 866 844 180.5
B 15 204 514572 2936.03 876 853 175.0
B 14 167 89795 508.33 876 853 175.0
B 3 0 66799 376.9 876 853 175.0
C 14 223 673964 3401.44 838 839 197.9
C 5 250 159043 799.44 838 839 197.9
C 1 16 93698 469.24 838 839 197.9
D 13 223 539593 2600.2 843 817 207.2
D 5 233 12504 56.4 843 817 207.2
D 13 239 12432 56.06 843 817 207.2

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