ASTROSAT CZTI

Data Quality Report

Orbit 17114

Creation date: 2024-06-27T17:32:19.031411
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/AS1A05_004T03_9000002538_17114cztM0_level2.evt modeM0/AS1A05_004T03_9000002538_17114cztM0_level2_quad_clean.evt
Size (bytes)576,132,48092,041,920
Size549.4 MB 87.8 MB
Events in quadrant A3,851,833563,494
Events in quadrant B4,144,091571,516
Events in quadrant C4,216,358546,562
Events in quadrant D4,673,617530,701

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0171303
B0176953
C0176503
D0197803

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B040
C040
D040

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A82812883.477841%
B82823554.286404%
C82823073.706834%
D82825116.170007%

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 8651 8283 0 0 0.00% 0.00%
B 8652 8285 15 15 0.17% 0.18%
C 8652 8285 1 1 0.01% 0.01%
D 8652 8287 255 255 2.95% 3.08%

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 8850 38.54 999 973 204.4
A 3 137 7574 32.29 999 973 204.4
A 12 194 7359 31.24 999 973 204.4
B 0 197 103065 533.93 998 972 191.2
B 7 220 51157 262.46 998 972 191.2
B 12 111 23385 117.22 998 972 191.2
C 3 233 299793 1333.17 958 964 224.1
C 14 238 146782 650.54 958 964 224.1
C 8 128 12056 49.48 958 964 224.1
D 5 222 961306 4115.52 950 922 233.4
D 11 176 33963 141.59 950 922 233.4
D 10 70 31716 131.96 950 922 233.4

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