ASTROSAT CZTI

Data Quality Report

Orbit 24378

Creation date: 2024-06-27T19:05:21.937839
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/AS1A08_008T01_9000003596_24378cztM0_level2.evt modeM0/AS1A08_008T01_9000003596_24378cztM0_level2_quad_clean.evt
Size (bytes)517,703,04088,125,120
Size493.7 MB 84.0 MB
Events in quadrant A3,144,386559,221
Events in quadrant B3,374,051571,048
Events in quadrant C4,198,078544,607
Events in quadrant D4,503,653522,631

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136841
B0139991
C0166902
D0177401

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A676280.118308%
B6763350.517522%
C67621051.552795%
D67623204.732328%

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 7702 6763 0 0 0.00% 0.00%
B 7703 6764 2 2 0.03% 0.03%
C 7702 6763 19 19 0.25% 0.28%
D 7702 6763 255 255 3.31% 3.77%

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 11670 66.22 815 797 164.2
A 3 137 6986 37.69 815 797 164.2
A 0 226 6799 36.55 815 797 164.2
B 4 200 150457 982.75 818 798 152.3
B 12 111 18318 115.05 818 798 152.3
B 11 111 16503 103.13 818 798 152.3
C 2 16 565537 3116.61 787 793 181.2
C 7 247 432920 2384.75 787 793 181.2
C 14 238 129271 709.02 787 793 181.2
D 9 35 719348 3847.89 780 756 186.7
D 1 52 582696 3116.15 780 756 186.7
D 12 233 84283 447.27 780 756 186.7

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