ASTROSAT CZTI

Data Quality Report

Orbit 12316

Creation date: 2024-06-27T16:25:21.491593
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/AS1A04_183T02_9000001816_12316cztM0_level2.evt modeM0/AS1A04_183T02_9000001816_12316cztM0_level2_quad_clean.evt
Size (bytes)519,546,24066,121,920
Size495.5 MB 63.1 MB
Events in quadrant A3,589,150391,251
Events in quadrant B4,785,277391,067
Events in quadrant C3,241,104397,237
Events in quadrant D3,684,014374,834

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0210
C0210
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0147343
B0183272
C0136362
D0151022

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6416821.278055%
B64164056.312344%
C6416450.701372%
D6416931.449501%

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 7677 6418 5 5 0.07% 0.08%
B 7677 6418 221 221 2.88% 3.44%
C 7677 6418 16 16 0.21% 0.25%
D 7677 6418 42 42 0.55% 0.65%

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 1 162 134684 808.49 825 810 165.6
A 1 178 77157 461.07 825 810 165.6
A 1 161 66827 398.69 825 810 165.6
B 4 239 772484 5005.68 820 803 154.2
B 3 64 718226 4653.72 820 803 154.2
B 0 205 24166 151.55 820 803 154.2
C 4 254 96979 512.31 807 813 187.7
C 13 61 5909 27.15 807 813 187.7
C 3 202 1936 5.98 807 813 187.7
D 1 52 445692 2322.52 794 774 191.6
D 5 222 68775 354.97 794 774 191.6
D 8 195 52118 268.02 794 774 191.6

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