ASTROSAT CZTI

Data Quality Report

Orbit 28910

Creation date: 2024-06-27T19:57:53.947783
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_064T01_9000004144_28910cztM0_level2.evt modeM0/AS1A10_064T01_9000004144_28910cztM0_level2_quad_clean.evt
Size (bytes)493,355,52055,442,880
Size470.5 MB 52.9 MB
Events in quadrant A1,900,023373,510
Events in quadrant B1,983,183380,750
Events in quadrant C4,395,656345,835
Events in quadrant D6,382,107286,736

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A083851
B086431
C0160021
D0217181

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0820
B0820
C0820
D0820

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4134150.362845%
B4134310.749879%
C41342195.297533%
D4134193246.734398%

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 4134 4134 1 1 0.02% 0.02%
B 4134 4134 3 3 0.07% 0.07%
C 4134 4134 33 33 0.80% 0.80%
D 4134 4134 1970 1970 47.65% 47.65%

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 12 96 11142 108.34 488 479 98.4
A 13 254 7346 69.77 488 479 98.4
A 3 137 4683 42.71 488 479 98.4
B 0 229 54495 583.37 482 470 92.6
B 10 245 22758 240.67 482 470 92.6
B 12 111 11250 116.4 482 470 92.6
C 3 233 2524915 23460.16 456 460 107.6
C 14 238 73935 682.81 456 460 107.6
C 2 114 9073 80.04 456 460 107.6
D 8 195 3893716 40315.34 402 390 96.6
D 1 52 904911 9366.3 402 390 96.6
D 12 79 47176 484.47 402 390 96.6

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