ASTROSAT CZTI

Data Quality Report

Orbit 29872

Creation date: 2024-06-27T20:08:31.854115
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/AS1A10_102T10_9000004282_29872cztM0_level2.evt modeM0/AS1A10_102T10_9000004282_29872cztM0_level2_quad_clean.evt
Size (bytes)552,208,32075,559,680
Size526.6 MB 72.1 MB
Events in quadrant A3,388,375471,818
Events in quadrant B5,320,666466,030
Events in quadrant C3,990,860441,484
Events in quadrant D3,565,771437,138

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142192
B0204812
C0160802
D0146502

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6761360.532466%
B67621121.656315%
C6762821.212659%
D6762310.458444%

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 7871 6762 1 1 0.01% 0.01%
B 7872 6763 0 0 0.00% 0.00%
C 7872 6763 0 0 0.00% 0.00%
D 7872 6763 12 12 0.15% 0.18%

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 8 192 11918 64.26 873 854 172.2
A 13 254 11910 64.21 873 854 172.2
A 3 137 8366 43.63 873 854 172.2
B 6 159 1882942 11427.08 860 838 164.7
B 0 190 50936 304.17 860 838 164.7
B 12 111 20008 116.39 860 838 164.7
C 3 233 643152 3375.37 819 823 190.3
C 14 238 134990 705.03 819 823 190.3
C 2 114 15737 78.37 819 823 190.3
D 8 195 249525 1276.72 831 810 194.8
D 2 250 81354 413.45 831 810 194.8
D 7 238 45093 227.32 831 810 194.8

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