ASTROSAT CZTI

Data Quality Report

Orbit 05701

Creation date: 2024-06-27T14:58:08.092110
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/AS1A02_098T01_9000000736_05701cztM0_level2.evt modeM0/AS1A02_098T01_9000000736_05701cztM0_level2_quad_clean.evt
Size (bytes)462,879,36080,386,560
Size441.4 MB 76.7 MB
Events in quadrant A3,247,658498,693
Events in quadrant B3,661,615500,888
Events in quadrant C3,216,648503,353
Events in quadrant D3,452,381479,644

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01340
B01340
C01340
D01340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136983
B0149232
C0137482
D0143882

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0240
B0240
C0240
D0240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64731261.946547%
B64731482.286421%
C64731151.776611%
D64731322.039240%

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 8848 6474 0 0 0.00% 0.00%
B 8848 6474 3 3 0.03% 0.05%
C 8848 6474 0 0 0.00% 0.00%
D 8848 6475 7 7 0.08% 0.11%

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 0 226 8218 43.18 843 825 171.2
A 12 194 8209 43.13 843 825 171.2
A 15 254 2686 10.87 843 825 171.2
B 15 204 282257 1772.91 841 823 158.7
B 11 51 50203 311.07 841 823 158.7
B 0 219 18948 114.18 841 823 158.7
C 1 16 14552 73.41 817 822 187.0
C 14 67 10617 52.37 817 822 187.0
C 13 61 6582 30.79 817 822 187.0
D 8 195 105844 529.09 819 797 198.5
D 2 152 86198 430.14 819 797 198.5
D 12 221 46170 228.53 819 797 198.5

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