ASTROSAT CZTI

Data Quality Report

Orbit 32010

Creation date: 2024-06-27T20:35:13.930176
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_109T01_9000004678_32010cztM0_level2.evt modeM0/AS1A10_109T01_9000004678_32010cztM0_level2_quad_clean.evt
Size (bytes)768,254,400104,751,360
Size732.7 MB 99.9 MB
Events in quadrant A3,433,796717,839
Events in quadrant B7,205,373687,872
Events in quadrant C6,224,932636,217
Events in quadrant D5,928,062639,902

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A020
B020
C020
D020

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01440
B01440
C01440
D01440

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0146591
B0263111
C0233661
D0223442

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A70291211.721440%
B70306799.658606%
C703092213.115220%
D70294836.871532%

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 7309 7029 0 0 0.00% 0.00%
B 7309 7029 296 296 4.05% 4.21%
C 7310 7030 389 389 5.32% 5.53%
D 7309 7029 289 289 3.95% 4.11%

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 13110 67.93 887 870 180.2
A 13 6 11073 56.62 887 870 180.2
A 3 137 8840 44.23 887 870 180.2
B 6 159 1889901 11552.36 842 823 163.5
B 12 18 1165906 7124.88 842 823 163.5
B 10 245 656377 4008.94 842 823 163.5
C 3 233 2564309 13239.99 821 828 193.6
C 0 10 192750 991.25 821 828 193.6
C 14 238 165995 853.06 821 828 193.6
D 8 195 1690664 8300.12 843 821 203.6
D 13 249 580739 2848.42 843 821 203.6
D 2 250 364859 1788.07 843 821 203.6

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