ASTROSAT CZTI

Data Quality Report

Orbit 19053

Creation date: 2024-06-27T17:58:32.997290
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_9000002834_19053cztM0_level2.evt modeM0/AS1A05_046T01_9000002834_19053cztM0_level2_quad_clean.evt
Size (bytes)526,285,44095,120,640
Size501.9 MB 90.7 MB
Events in quadrant A3,650,385587,813
Events in quadrant B3,937,940603,847
Events in quadrant C3,746,444584,943
Events in quadrant D4,083,294570,669

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01560
B01560
C01560
D01560

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158591
B0164281
C0159031
D0172721

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A76592202.872438%
B76602323.028721%
C76602242.924282%
D76602222.898172%

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 7774 7660 0 0 0.00% 0.00%
B 7775 7661 5 5 0.06% 0.07%
C 7775 7661 0 0 0.00% 0.00%
D 7775 7661 55 55 0.71% 0.72%

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 13 254 9006 41.62 947 925 194.2
A 0 226 8160 37.26 947 925 194.2
A 3 137 7640 34.58 947 925 194.2
B 10 246 122445 656.58 941 916 185.1
B 4 216 31686 166.24 941 916 185.1
B 12 111 22007 113.95 941 916 185.1
C 14 238 138974 637.01 913 920 216.7
C 3 233 24277 107.77 913 920 216.7
C 8 128 13705 58.99 913 920 216.7
D 7 238 416272 1817.53 931 902 228.5
D 7 38 131309 570.62 931 902 228.5
D 2 234 38946 166.47 931 902 228.5

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