ASTROSAT CZTI

Data Quality Report

Orbit 04924

Creation date: 2024-06-27T14:48:54.710406
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_118T01_9000000622_04924cztM0_level2.evt modeM0/AS1G05_118T01_9000000622_04924cztM0_level2_quad_clean.evt
Size (bytes)552,559,68075,960,000
Size527.0 MB 72.4 MB
Events in quadrant A3,311,644470,654
Events in quadrant B3,314,118472,597
Events in quadrant C3,039,416470,959
Events in quadrant D6,591,935395,590

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0148213
B0147472
C0143262
D0244592

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7028751.067160%
B7028771.095618%
C7028220.313034%
D7028101614.456460%

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 7648 7028 13 13 0.17% 0.18%
B 7648 7028 3 3 0.04% 0.04%
C 7648 7029 1 1 0.01% 0.01%
D 7648 7028 980 980 12.81% 13.94%

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 31 206298 1260.07 798 777 163.1
A 15 31 22818 135.14 798 777 163.1
A 12 194 8185 45.42 798 777 163.1
B 10 16 73330 473.07 803 785 153.4
B 4 80 34283 218.44 803 785 153.4
B 0 183 22619 142.38 803 785 153.4
C 1 16 7752 39.07 773 775 178.6
C 9 247 6995 34.83 773 775 178.6
C 13 61 6493 32.02 773 775 178.6
D 1 7 2950829 16773.53 712 687 175.9
D 2 33 422279 2397.03 712 687 175.9
D 2 234 128262 725.35 712 687 175.9

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